Stapler Walkthrough (1)

#VMware 导入 ovf 文件格式异常报错 #attack #Vulnhub #nmap #辨識hash類型 #解密 #John the Ripper (JTR) 密碼暴力破解工具 #wordpress #Wordpress后台getshell五种方法 #wpscan #wordpress外掛漏洞 #LFI #php reverse shell #39646 #39772 #32位元/linux kernel 4.4.0-21/ubuntu 16.04提權漏洞

Posted by nathan2009729 on 2022-11-13

前置作業

首先從這裡Stapler: 1 ~ VulnHub下載，但是直接把Stapler.ovf導入vmware的話會出錯。根據VMware 导入 ovf 文件格式异常报错之探解 | Secrypt Agency這一篇可以解決。

這裡再一次簡單說一下。環境是vmware workstation pro 16，解壓縮出來有Stapler.ovf、Stapler-disk1.vmdk、Stapler_readme.txt跟Stapler.mf，因為Stapler.ovf寫的方式有錯，才會出現錯誤。用文字編輯軟體如notepad++，把Stapler.ovf打開，替換成以下內容:

<?xml version="1.0" encoding="UTF-8"?>
<!--Generated by VMware ovftool 4.1.0 (build-3018522), UTC time: 2016-06-07T10:02:55.518806Z-->
<Envelope vmw:buildId="build-3018522" xmlns="http://schemas.dmtf.org/ovf/envelope/1" xmlns:cim="http://schemas.dmtf.org/wbem/wscim/1/common" xmlns:ovf="http://schemas.dmtf.org/ovf/envelope/1" xmlns:rasd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_ResourceAllocationSettingData" xmlns:vmw="http://www.vmware.com/schema/ovf" xmlns:vssd="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_VirtualSystemSettingData" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <References>
    <File ovf:href="Stapler-disk1.vmdk" ovf:id="file1" ovf:size="757926912"/>
  </References>
  <DiskSection>
    <Info>Virtual disk information</Info>
    <Disk ovf:capacity="20" ovf:capacityAllocationUnits="byte * 2^30" ovf:diskId="vmdisk1" ovf:fileRef="file1" ovf:format="http://www.vmware.com/interfaces/specifications/vmdk.html#streamOptimized" ovf:populatedSize="2212560896"/>
  </DiskSection>
  <NetworkSection>
    <Info>The list of logical networks</Info>
    <Network ovf:name="hostonly">
      <Description>The hostonly network</Description>
    </Network>
  </NetworkSection>
  <VirtualSystem ovf:id="vm">
    <Info>A virtual machine</Info>
    <Name>Stapler</Name>
    <OperatingSystemSection ovf:id="93" vmw:osType="ubuntuGuest">
      <Info>The kind of installed guest operating system</Info>
    </OperatingSystemSection>
    <VirtualHardwareSection>
      <Info>Virtual hardware requirements</Info>
      <System>
        <vssd:Caption>Virtual Hardware Family</vssd:Caption>
        <vssd:InstanceID>0</vssd:InstanceID>
        <vssd:VirtualSystemIdentifier>Stapler</vssd:VirtualSystemIdentifier>
        <vssd:VirtualSystemType>vmx-15</vssd:VirtualSystemType>
      </System>
      <Item>
        <rasd:AllocationUnits>hertz * 10^6</rasd:AllocationUnits>
        <rasd:Caption>1 virtual CPU(s)</rasd:Caption>
        <rasd:Description>Number of Virtual CPUs</rasd:Description>
        <rasd:InstanceID>1</rasd:InstanceID>
        <rasd:ResourceType>3</rasd:ResourceType>
        <rasd:VirtualQuantity>1</rasd:VirtualQuantity>
      </Item>
      <Item>
        <rasd:AllocationUnits>byte * 2^20</rasd:AllocationUnits>
        <rasd:Caption>1024MB of memory</rasd:Caption>
        <rasd:Description>Memory Size</rasd:Description>
        <rasd:InstanceID>2</rasd:InstanceID>
        <rasd:ResourceType>4</rasd:ResourceType>
        <rasd:VirtualQuantity>1024</rasd:VirtualQuantity>
      </Item>
      <Item>
        <rasd:Address>0</rasd:Address>
        <rasd:Caption>sataController0</rasd:Caption>
        <rasd:Description>SATA Controller</rasd:Description>
        <rasd:InstanceID>3</rasd:InstanceID>
        <rasd:ResourceSubType>AHCI</rasd:ResourceSubType>
        <rasd:ResourceType>20</rasd:ResourceType>
      </Item>
      <Item ovf:required="false">
        <rasd:Address>0</rasd:Address>
        <rasd:Caption>usb</rasd:Caption>
        <rasd:Description>USB Controller (EHCI)</rasd:Description>
        <rasd:InstanceID>4</rasd:InstanceID>
        <rasd:ResourceSubType>vmware.usb.ehci</rasd:ResourceSubType>
        <rasd:ResourceType>23</rasd:ResourceType>
        <vmw:Config ovf:required="false" vmw:key="ehciEnabled" vmw:value="true"/>
      </Item>
      <Item>
        <rasd:Address>0</rasd:Address>
        <rasd:Caption>scsiController0</rasd:Caption>
        <rasd:Description>SCSI Controller</rasd:Description>
        <rasd:InstanceID>5</rasd:InstanceID>
        <rasd:ResourceSubType>lsilogic</rasd:ResourceSubType>
        <rasd:ResourceType>6</rasd:ResourceType>
      </Item>
      <Item>
        <rasd:AddressOnParent>2</rasd:AddressOnParent>
        <rasd:AutomaticAllocation>true</rasd:AutomaticAllocation>
        <rasd:Caption>ethernet0</rasd:Caption>
        <rasd:Connection>hostonly</rasd:Connection>
        <rasd:Description>PCNet32 ethernet adapter on "hostonly"</rasd:Description>
        <rasd:InstanceID>6</rasd:InstanceID>
        <rasd:ResourceSubType>PCNet32</rasd:ResourceSubType>
        <rasd:ResourceType>10</rasd:ResourceType>
        <vmw:Config ovf:required="false" vmw:key="slotInfo.pciSlotNumber" vmw:value="33"/>
        <vmw:Config ovf:required="false" vmw:key="wakeOnLanEnabled" vmw:value="false"/>
      </Item>
      <Item ovf:required="false">
        <rasd:AutomaticAllocation>false</rasd:AutomaticAllocation>
        <rasd:Caption>video</rasd:Caption>
        <rasd:InstanceID>7</rasd:InstanceID>
        <rasd:ResourceType>24</rasd:ResourceType>
        <vmw:Config ovf:required="false" vmw:key="enable3DSupport" vmw:value="false"/>
        <vmw:Config ovf:required="false" vmw:key="slotInfo.pciSlotNumber" vmw:value="33"/>
      </Item>
      <Item ovf:required="false">
        <rasd:AutomaticAllocation>false</rasd:AutomaticAllocation>
        <rasd:Caption>vmci</rasd:Caption>
        <rasd:InstanceID>8</rasd:InstanceID>
        <rasd:ResourceSubType>vmware.vmci</rasd:ResourceSubType>
        <rasd:ResourceType>1</rasd:ResourceType>
        <vmw:Config ovf:required="false" vmw:key="slotInfo.pciSlotNumber" vmw:value="33"/>
      </Item>
      <Item>
        <rasd:AddressOnParent>0</rasd:AddressOnParent>
        <rasd:Caption>disk0</rasd:Caption>
        <rasd:HostResource>ovf:/disk/vmdisk1</rasd:HostResource>
        <rasd:InstanceID>9</rasd:InstanceID>
        <rasd:Parent>3</rasd:Parent>
        <rasd:ResourceType>17</rasd:ResourceType>
        <vmw:Config ovf:required="false" vmw:key="slotInfo.pciSlotNumber" vmw:value="33"/>
      </Item>
      <Item ovf:required="false">
        <rasd:AddressOnParent>1</rasd:AddressOnParent>
        <rasd:AutomaticAllocation>false</rasd:AutomaticAllocation>
        <rasd:Caption>cdrom0</rasd:Caption>
        <rasd:InstanceID>10</rasd:InstanceID>
        <rasd:Parent>3</rasd:Parent>
        <rasd:ResourceType>15</rasd:ResourceType>
        <vmw:Config ovf:required="false" vmw:key="slotInfo.pciSlotNumber" vmw:value="33"/>
      </Item>
      <vmw:Config ovf:required="false" vmw:key="cpuHotAddEnabled" vmw:value="true"/>
      <vmw:Config ovf:required="false" vmw:key="memoryHotAddEnabled" vmw:value="true"/>
      <vmw:Config ovf:required="false" vmw:key="powerOpInfo.powerOffType" vmw:value="soft"/>
      <vmw:Config ovf:required="false" vmw:key="powerOpInfo.resetType" vmw:value="soft"/>
      <vmw:Config ovf:required="false" vmw:key="powerOpInfo.suspendType" vmw:value="soft"/>
      <vmw:Config ovf:required="false" vmw:key="tools.afterPowerOn" vmw:value="true"/>
      <vmw:Config ovf:required="false" vmw:key="tools.afterResume" vmw:value="true"/>
      <vmw:Config ovf:required="false" vmw:key="tools.beforeGuestShutdown" vmw:value="true"/>
      <vmw:Config ovf:required="false" vmw:key="tools.beforeGuestStandby" vmw:value="true"/>
      <vmw:Config ovf:required="false" vmw:key="tools.syncTimeWithHost" vmw:value="true"/>
      <vmw:Config ovf:required="false" vmw:key="tools.toolsUpgradePolicy" vmw:value="upgradeAtPowerCycle"/>
    </VirtualHardwareSection>
    <AnnotationSection ovf:required="false">
      <Info>A human-readable annotation</Info>
      <Annotation>--[[~~Enjoy. Have fun. Happy Hacking.~~]]--

+ There are multiple methods to-do this machine: At least
-- Two (2) paths to get a limited shell
-- At least three (3) ways to get a root access</Annotation>
    </AnnotationSection>
  </VirtualSystem>
</Envelope>

接下來再修改Stapler.mf，因為Stapler.mf有Stapler.ovf的sha1的值，所以要改一下。Win10下打開powershell，先用cd指令切換到Stapler.ovf的目錄，再輸入以下指令certutil -hashfile .\Stapler.ovf sha1，算出sha1值。

PS D:\VM_host\Stapler> certutil -hashfile .\Stapler.ovf sha1
SHA1 hash of .\Stapler.ovf:
0737f41d2e522cda052c876ccb1fba6235dbacc5
CertUtil: -hashfile command completed successfully.

接下來到這個畫面:

點中間那個，再度載入Stapler.ovf，這時vmware會問名稱跟儲存位置。注意儲存位置不要有原本舊的Stapler-disk1.vmdk在。另外，開機之前記得跟kali的虛擬機網路連接方式要一樣(NAT或Bridge)。

0x01 信息收集

1.1 nmap掃描

先找出靶機IP:

$ nmap -sP 192.168.44.0/24
Starting Nmap 7.92 ( https://nmap.org ) at 2022-10-31 13:00 CST
Nmap scan report for 192.168.44.129
Host is up (0.0015s latency).
Nmap scan report for 192.168.44.227
Host is up (0.0039s latency).
Nmap done: 256 IP addresses (2 hosts up) scanned in 20.92 seconds

在kali虛擬機打ifconfig指令可知IP是192.168.44.129，所以靶機IP自然就是227了。之後再對靶機做更進一步的掃描:

$ nmap -A -T4 192.168.44.227
Starting Nmap 7.92 ( https://nmap.org ) at 2022-10-31 13:00 CST
Nmap scan report for 192.168.44.227
Host is up (0.0029s latency).
Not shown: 992 filtered tcp ports (no-response)
PORT     STATE  SERVICE     VERSION
20/tcp   closed ftp-data
21/tcp   open   ftp         vsftpd 2.0.8 or later
| ftp-anon: Anonymous FTP login allowed (FTP code 230)
|_Can't get directory listing: PASV failed: 550 Permission denied.
| ftp-syst:
|   STAT:
| FTP server status:
|      Connected to 192.168.44.1
|      Logged in as ftp
|      TYPE: ASCII
|      No session bandwidth limit
|      Session timeout in seconds is 300
|      Control connection is plain text
|      Data connections will be plain text
|      At session startup, client count was 3
|      vsFTPd 3.0.3 - secure, fast, stable
|_End of status
22/tcp   open   ssh         OpenSSH 7.2p2 Ubuntu 4 (Ubuntu Linux; protocol 2.0)
| ssh-hostkey:
|   2048 81:21:ce:a1:1a:05:b1:69:4f:4d:ed:80:28:e8:99:05 (RSA)
|   256 5b:a5:bb:67:91:1a:51:c2:d3:21:da:c0:ca:f0:db:9e (ECDSA)
|_  256 6d:01:b7:73:ac:b0:93:6f:fa:b9:89:e6:ae:3c:ab:d3 (ED25519)
53/tcp   open   domain      dnsmasq 2.75
| dns-nsid:
|_  bind.version: dnsmasq-2.75
80/tcp   open   http        PHP cli server 5.5 or later
|_http-title: 404 Not Found
139/tcp  open   netbios-ssn Samba smbd 4.3.9-Ubuntu (workgroup: WORKGROUP)
666/tcp  open   doom?
| fingerprint-strings:
|   NULL:
|     message2.jpgUT
|     QWux
|     "DL[E
|     #;3[
|     \xf6
|     u([r
|     qYQq
|     Y_?n2
|     3&M~{
|     9-a)T
|     L}AJ
|_    .npy.9
3306/tcp open   mysql       MySQL 5.7.12-0ubuntu1
| mysql-info:
|   Protocol: 10
|   Version: 5.7.12-0ubuntu1
|   Thread ID: 8
|   Capabilities flags: 63487
|   Some Capabilities: Support41Auth, Speaks41ProtocolOld, IgnoreSigpipes, SupportsTransactions, ConnectWithDatabase, SupportsCompression, LongPassword, Speaks41ProtocolNew, InteractiveClient, DontAllowDatabaseTableColumn, ODBCClient, SupportsLoadDataLocal, LongColumnFlag, IgnoreSpaceBeforeParenthesis, FoundRows, SupportsAuthPlugins, SupportsMultipleResults, SupportsMultipleStatments
|   Status: Autocommit
|   Salt: e"b`,f\x1B]1Sx;1_\x0D\x12[v|I
|_  Auth Plugin Name: mysql_native_password
1 service unrecognized despite returning data. If you know the service/version, please submit the following fingerprint at https://nmap.org/cgi-bin/submit.cgi?new-service :
SF-Port666-TCP:V=7.92%I=7%D=10/31%Time=635F5686%P=x86_64-pc-linux-gnu%r(NU
SF:LL,2D58,"PK\x03\x04\x14\0\x02\0\x08\0d\x80\xc3Hp\xdf\x15\x81\xaa,\0\0\x
SF:152\0\0\x0c\0\x1c\0message2\.jpgUT\t\0\x03\+\x9cQWJ\x9cQWux\x0b\0\x01\x
SF:04\xf5\x01\0\0\x04\x14\0\0\0\xadz\x0bT\x13\xe7\xbe\xefP\x94\x88\x88A@\x
SF:a2\x20\x19\xabUT\xc4T\x11\xa9\x102>\x8a\xd4RDK\x15\x85Jj\xa9\"DL\[E\xa2
SF:\x0c\x19\x140<\xc4\xb4\xb5\xca\xaen\x89\x8a\x8aV\x11\x91W\xc5H\x20\x0f\
SF:xb2\xf7\xb6\x88\n\x82@%\x99d\xb7\xc8#;3\[\r_\xcddr\x87\xbd\xcf9\xf7\xae
SF:u\xeeY\xeb\xdc\xb3oX\xacY\xf92\xf3e\xfe\xdf\xff\xff\xff=2\x9f\xf3\x99\x
SF:d3\x08y}\xb8a\xe3\x06\xc8\xc5\x05\x82>`\xfe\x20\xa7\x05:\xb4y\xaf\xf8\x
SF:a0\xf8\xc0\^\xf1\x97sC\x97\xbd\x0b\xbd\xb7nc\xdc\xa4I\xd0\xc4\+j\xce\[\
SF:x87\xa0\xe5\x1b\xf7\xcc=,\xce\x9a\xbb\xeb\xeb\xdds\xbf\xde\xbd\xeb\x8b\
SF:xf4\xfdis\x0f\xeeM\?\xb0\xf4\x1f\xa3\xcceY\xfb\xbe\x98\x9b\xb6\xfb\xe0\
SF:xdc\]sS\xc5bQ\xfa\xee\xb7\xe7\xbc\x05AoA\x93\xfe9\xd3\x82\x7f\xcc\xe4\x
SF:d5\x1dx\xa2O\x0e\xdd\x994\x9c\xe7\xfe\x871\xb0N\xea\x1c\x80\xd63w\xf1\x
SF:af\xbd&&q\xf9\x97'i\x85fL\x81\xe2\\\xf6\xb9\xba\xcc\x80\xde\x9a\xe1\xe2
SF::\xc3\xc5\xa9\x85`\x08r\x99\xfc\xcf\x13\xa0\x7f{\xb9\xbc\xe5:i\xb2\x1bk
SF:\x8a\xfbT\x0f\xe6\x84\x06/\xe8-\x17W\xd7\xb7&\xb9N\x9e<\xb1\\\.\xb9\xcc
SF:\xe7\xd0\xa4\x19\x93\xbd\xdf\^\xbe\xd6\xcdg\xcb\.\xd6\xbc\xaf\|W\x1c\xf
SF:d\xf6\xe2\x94\xf9\xebj\xdbf~\xfc\x98x'\xf4\xf3\xaf\x8f\xb9O\xf5\xe3\xcc
SF:\x9a\xed\xbf`a\xd0\xa2\xc5KV\x86\xad\n\x7fou\xc4\xfa\xf7\xa37\xc4\|\xb0
SF:\xf1\xc3\x84O\xb6nK\xdc\xbe#\)\xf5\x8b\xdd{\xd2\xf6\xa6g\x1c8\x98u\(\[r
SF:\xf8H~A\xe1qYQq\xc9w\xa7\xbe\?}\xa6\xfc\x0f\?\x9c\xbdTy\xf9\xca\xd5\xaa
SF:k\xd7\x7f\xbcSW\xdf\xd0\xd8\xf4\xd3\xddf\xb5F\xabk\xd7\xff\xe9\xcf\x7fy
SF:\xd2\xd5\xfd\xb4\xa7\xf7Y_\?n2\xff\xf5\xd7\xdf\x86\^\x0c\x8f\x90\x7f\x7
SF:f\xf9\xea\xb5m\x1c\xfc\xfef\"\.\x17\xc8\xf5\?B\xff\xbf\xc6\xc5,\x82\xcb
SF:\[\x93&\xb9NbM\xc4\xe5\xf2V\xf6\xc4\t3&M~{\xb9\x9b\xf7\xda-\xac\]_\xf9\
SF:xcc\[qt\x8a\xef\xbao/\xd6\xb6\xb9\xcf\x0f\xfd\x98\x98\xf9\xf9\xd7\x8f\x
SF:a7\xfa\xbd\xb3\x12_@N\x84\xf6\x8f\xc8\xfe{\x81\x1d\xfb\x1fE\xf6\x1f\x81
SF:\xfd\xef\xb8\xfa\xa1i\xae\.L\xf2\\g@\x08D\xbb\xbfp\xb5\xd4\xf4Ym\x0bI\x
SF:96\x1e\xcb\x879-a\)T\x02\xc8\$\x14k\x08\xae\xfcZ\x90\xe6E\xcb<C\xcap\x8
SF:f\xd0\x8f\x9fu\x01\x8dvT\xf0'\x9b\xe4ST%\x9f5\x95\xab\rSWb\xecN\xfb&\xf
SF:4\xed\xe3v\x13O\xb73A#\xf0,\xd5\xc2\^\xe8\xfc\xc0\xa7\xaf\xab4\xcfC\xcd
SF:\x88\x8e}\xac\x15\xf6~\xc4R\x8e`wT\x96\xa8KT\x1cam\xdb\x99f\xfb\n\xbc\x
SF:bcL}AJ\xe5H\x912\x88\(O\0k\xc9\xa9\x1a\x93\xb8\x84\x8fdN\xbf\x17\xf5\xf
SF:0\.npy\.9\x04\xcf\x14\x1d\x89Rr9\xe4\xd2\xae\x91#\xfbOg\xed\xf6\x15\x04
SF:\xf6~\xf1\]V\xdcBGu\xeb\xaa=\x8e\xef\xa4HU\x1e\x8f\x9f\x9bI\xf4\xb6GTQ\
SF:xf3\xe9\xe5\x8e\x0b\x14L\xb2\xda\x92\x12\xf3\x95\xa2\x1c\xb3\x13\*P\x11
SF:\?\xfb\xf3\xda\xcaDfv\x89`\xa9\xe4k\xc4S\x0e\xd6P0");
Service Info: Host: RED; OS: Linux; CPE: cpe:/o:linux:linux_kernel

Host script results:
| smb-os-discovery:
|   OS: Windows 6.1 (Samba 4.3.9-Ubuntu)
|   Computer name: red
|   NetBIOS computer name: RED\x00
|   Domain name: \x00
|   FQDN: red
|_  System time: 2022-10-31T12:58:46+00:00
|_clock-skew: mean: 7h57m40s, deviation: 0s, median: 7h57m40s
|_nbstat: NetBIOS name: RED, NetBIOS user: <unknown>, NetBIOS MAC: <unknown> (unknown)
| smb2-security-mode:
|   3.1.1:
|_    Message signing enabled but not required
| smb-security-mode:
|   account_used: guest
|   authentication_level: user
|   challenge_response: supported
|_  message_signing: disabled (dangerous, but default)
| smb2-time:
|   date: 2022-10-31T12:58:46
|_  start_date: N/A

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 54.63 seconds
Segmentation fault

可以再試試加更多option再掃一次:

$ sudo nmap -sS -sV -T5 -A -p- 192.168.44.227
[sudo] password for nathan:
Starting Nmap 7.92 ( https://nmap.org ) at 2022-10-31 13:10 CST
Nmap scan report for 192.168.44.227
Host is up (0.0038s latency).
Not shown: 65523 filtered tcp ports (no-response)
PORT      STATE  SERVICE     VERSION
20/tcp    closed ftp-data
21/tcp    open   ftp         vsftpd 2.0.8 or later
| ftp-anon: Anonymous FTP login allowed (FTP code 230)
|_Can't get directory listing: PASV failed: 550 Permission denied.
| ftp-syst:
|   STAT:
| FTP server status:
|      Connected to 192.168.44.1
|      Logged in as ftp
|      TYPE: ASCII
|      No session bandwidth limit
|      Session timeout in seconds is 300
|      Control connection is plain text
|      Data connections will be plain text
|      At session startup, client count was 1
|      vsFTPd 3.0.3 - secure, fast, stable
|_End of status
22/tcp    open   ssh         OpenSSH 7.2p2 Ubuntu 4 (Ubuntu Linux; protocol 2.0)
| ssh-hostkey:
|   2048 81:21:ce:a1:1a:05:b1:69:4f:4d:ed:80:28:e8:99:05 (RSA)
|   256 5b:a5:bb:67:91:1a:51:c2:d3:21:da:c0:ca:f0:db:9e (ECDSA)
|_  256 6d:01:b7:73:ac:b0:93:6f:fa:b9:89:e6:ae:3c:ab:d3 (ED25519)
53/tcp    open   domain      dnsmasq 2.75
| dns-nsid:
|_  bind.version: dnsmasq-2.75
80/tcp    open   http        PHP cli server 5.5 or later
|_http-title: 404 Not Found
123/tcp   closed ntp
137/tcp   closed netbios-ns
138/tcp   closed netbios-dgm
139/tcp   open   netbios-ssn Samba smbd 4.3.9-Ubuntu (workgroup: WORKGROUP)
666/tcp   open   doom?
| fingerprint-strings:
|   NULL:
|     message2.jpgUT
|     QWux
|     "DL[E
|     #;3[
|     \xf6
|     u([r
|     qYQq
|     Y_?n2
|     3&M~{
|     9-a)T
|     L}AJ
|_    .npy.9
3306/tcp  open   mysql       MySQL 5.7.12-0ubuntu1
| mysql-info:
|   Protocol: 10
|   Version: 5.7.12-0ubuntu1
|   Thread ID: 18
|   Capabilities flags: 63487
|   Some Capabilities: SupportsLoadDataLocal, Support41Auth, DontAllowDatabaseTableColumn, Speaks41ProtocolOld, FoundRows, SupportsTransactions, ODBCClient, ConnectWithDatabase, LongColumnFlag, SupportsCompression, IgnoreSigpipes, IgnoreSpaceBeforeParenthesis, LongPassword, InteractiveClient, Speaks41ProtocolNew, SupportsMultipleStatments, SupportsMultipleResults, SupportsAuthPlugins
|   Status: Autocommit
|   Salt: Q}Pm,^b%\x17^q5\x05s;\x06mN1q
|_  Auth Plugin Name: mysql_native_password
12380/tcp open   http        Apache httpd 2.4.18 ((Ubuntu))
|_http-title: Tim, we need to-do better next year for Initech
|_http-server-header: Apache/2.4.18 (Ubuntu)
1 service unrecognized despite returning data. If you know the service/version, please submit the following fingerprint at https://nmap.org/cgi-bin/submit.cgi?new-service :
SF-Port666-TCP:V=7.92%I=7%D=10/31%Time=635F58F1%P=x86_64-pc-linux-gnu%r(NU
SF:LL,2D58,"PK\x03\x04\x14\0\x02\0\x08\0d\x80\xc3Hp\xdf\x15\x81\xaa,\0\0\x
SF:152\0\0\x0c\0\x1c\0message2\.jpgUT\t\0\x03\+\x9cQWJ\x9cQWux\x0b\0\x01\x
SF:04\xf5\x01\0\0\x04\x14\0\0\0\xadz\x0bT\x13\xe7\xbe\xefP\x94\x88\x88A@\x
SF:a2\x20\x19\xabUT\xc4T\x11\xa9\x102>\x8a\xd4RDK\x15\x85Jj\xa9\"DL\[E\xa2
SF:\x0c\x19\x140<\xc4\xb4\xb5\xca\xaen\x89\x8a\x8aV\x11\x91W\xc5H\x20\x0f\
SF:xb2\xf7\xb6\x88\n\x82@%\x99d\xb7\xc8#;3\[\r_\xcddr\x87\xbd\xcf9\xf7\xae
SF:u\xeeY\xeb\xdc\xb3oX\xacY\xf92\xf3e\xfe\xdf\xff\xff\xff=2\x9f\xf3\x99\x
SF:d3\x08y}\xb8a\xe3\x06\xc8\xc5\x05\x82>`\xfe\x20\xa7\x05:\xb4y\xaf\xf8\x
SF:a0\xf8\xc0\^\xf1\x97sC\x97\xbd\x0b\xbd\xb7nc\xdc\xa4I\xd0\xc4\+j\xce\[\
SF:x87\xa0\xe5\x1b\xf7\xcc=,\xce\x9a\xbb\xeb\xeb\xdds\xbf\xde\xbd\xeb\x8b\
SF:xf4\xfdis\x0f\xeeM\?\xb0\xf4\x1f\xa3\xcceY\xfb\xbe\x98\x9b\xb6\xfb\xe0\
SF:xdc\]sS\xc5bQ\xfa\xee\xb7\xe7\xbc\x05AoA\x93\xfe9\xd3\x82\x7f\xcc\xe4\x
SF:d5\x1dx\xa2O\x0e\xdd\x994\x9c\xe7\xfe\x871\xb0N\xea\x1c\x80\xd63w\xf1\x
SF:af\xbd&&q\xf9\x97'i\x85fL\x81\xe2\\\xf6\xb9\xba\xcc\x80\xde\x9a\xe1\xe2
SF::\xc3\xc5\xa9\x85`\x08r\x99\xfc\xcf\x13\xa0\x7f{\xb9\xbc\xe5:i\xb2\x1bk
SF:\x8a\xfbT\x0f\xe6\x84\x06/\xe8-\x17W\xd7\xb7&\xb9N\x9e<\xb1\\\.\xb9\xcc
SF:\xe7\xd0\xa4\x19\x93\xbd\xdf\^\xbe\xd6\xcdg\xcb\.\xd6\xbc\xaf\|W\x1c\xf
SF:d\xf6\xe2\x94\xf9\xebj\xdbf~\xfc\x98x'\xf4\xf3\xaf\x8f\xb9O\xf5\xe3\xcc
SF:\x9a\xed\xbf`a\xd0\xa2\xc5KV\x86\xad\n\x7fou\xc4\xfa\xf7\xa37\xc4\|\xb0
SF:\xf1\xc3\x84O\xb6nK\xdc\xbe#\)\xf5\x8b\xdd{\xd2\xf6\xa6g\x1c8\x98u\(\[r
SF:\xf8H~A\xe1qYQq\xc9w\xa7\xbe\?}\xa6\xfc\x0f\?\x9c\xbdTy\xf9\xca\xd5\xaa
SF:k\xd7\x7f\xbcSW\xdf\xd0\xd8\xf4\xd3\xddf\xb5F\xabk\xd7\xff\xe9\xcf\x7fy
SF:\xd2\xd5\xfd\xb4\xa7\xf7Y_\?n2\xff\xf5\xd7\xdf\x86\^\x0c\x8f\x90\x7f\x7
SF:f\xf9\xea\xb5m\x1c\xfc\xfef\"\.\x17\xc8\xf5\?B\xff\xbf\xc6\xc5,\x82\xcb
SF:\[\x93&\xb9NbM\xc4\xe5\xf2V\xf6\xc4\t3&M~{\xb9\x9b\xf7\xda-\xac\]_\xf9\
SF:xcc\[qt\x8a\xef\xbao/\xd6\xb6\xb9\xcf\x0f\xfd\x98\x98\xf9\xf9\xd7\x8f\x
SF:a7\xfa\xbd\xb3\x12_@N\x84\xf6\x8f\xc8\xfe{\x81\x1d\xfb\x1fE\xf6\x1f\x81
SF:\xfd\xef\xb8\xfa\xa1i\xae\.L\xf2\\g@\x08D\xbb\xbfp\xb5\xd4\xf4Ym\x0bI\x
SF:96\x1e\xcb\x879-a\)T\x02\xc8\$\x14k\x08\xae\xfcZ\x90\xe6E\xcb<C\xcap\x8
SF:f\xd0\x8f\x9fu\x01\x8dvT\xf0'\x9b\xe4ST%\x9f5\x95\xab\rSWb\xecN\xfb&\xf
SF:4\xed\xe3v\x13O\xb73A#\xf0,\xd5\xc2\^\xe8\xfc\xc0\xa7\xaf\xab4\xcfC\xcd
SF:\x88\x8e}\xac\x15\xf6~\xc4R\x8e`wT\x96\xa8KT\x1cam\xdb\x99f\xfb\n\xbc\x
SF:bcL}AJ\xe5H\x912\x88\(O\0k\xc9\xa9\x1a\x93\xb8\x84\x8fdN\xbf\x17\xf5\xf
SF:0\.npy\.9\x04\xcf\x14\x1d\x89Rr9\xe4\xd2\xae\x91#\xfbOg\xed\xf6\x15\x04
SF:\xf6~\xf1\]V\xdcBGu\xeb\xaa=\x8e\xef\xa4HU\x1e\x8f\x9f\x9bI\xf4\xb6GTQ\
SF:xf3\xe9\xe5\x8e\x0b\x14L\xb2\xda\x92\x12\xf3\x95\xa2\x1c\xb3\x13\*P\x11
SF:\?\xfb\xf3\xda\xcaDfv\x89`\xa9\xe4k\xc4S\x0e\xd6P0");
Aggressive OS guesses: Linux 3.2 - 4.9 (96%), Linux 3.10 - 4.11 (93%), Linux 3.13 (93%), Linux 3.13 - 3.16 (93%), OpenWrt Chaos Calmer 15.05 (Linux 3.18) or Designated Driver (Linux 4.1 or 4.4) (93%), Linux 4.10 (93%), Android 5.0 - 6.0.1 (Linux 3.4) (93%), Linux 3.2 - 3.10 (93%), Linux 3.2 - 3.16 (93%), Linux 4.5 (93%)
No exact OS matches for host (test conditions non-ideal).
Network Distance: 2 hops
Service Info: Host: RED; OS: Linux; CPE: cpe:/o:linux:linux_kernel

Host script results:
| smb2-security-mode:
|   3.1.1:
|_    Message signing enabled but not required
|_nbstat: NetBIOS name: RED, NetBIOS user: <unknown>, NetBIOS MAC: <unknown> (unknown)
| smb-os-discovery:
|   OS: Windows 6.1 (Samba 4.3.9-Ubuntu)
|   Computer name: red
|   NetBIOS computer name: RED\x00
|   Domain name: \x00
|   FQDN: red
|_  System time: 2022-10-31T13:08:07+00:00
| smb-security-mode:
|   account_used: guest
|   authentication_level: user
|   challenge_response: supported
|_  message_signing: disabled (dangerous, but default)
| smb2-time:
|   date: 2022-10-31T13:08:07
|_  start_date: N/A
|_clock-skew: mean: 7h56m37s, deviation: 0s, median: 7h56m37s

TRACEROUTE (using port 80/tcp)
HOP RTT     ADDRESS
1   0.65 ms DESKTOP-NRNV04H.mshome.net (172.22.128.1)
2   6.12 ms 192.168.44.227

OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 109.59 seconds
Segmentation fault

簡單比較一下這兩個指令，可以掃到的port的差別:

nmap -A -T4
port: 20 21 22 53 80 139 666 3306
nmap -sS -sV -T5 -A -p-
port: 20 21 22 53 80 123 137 138 139 666 3306 12380

可以發現多掃出了123, 137, 138, 12380等port的開啟。

容易受到攻擊的端口：FTP(21 port)、NetBIOS、、MySQL和Web服務器（Apache HTTPD）的端口12380等等。

1.2 ftp掃描

剛剛的nmap的掃瞄結果，針對ftp有這一行:

ftp-anon: Anonymous FTP login allowed (FTP code 230)

代表可以匿名不用密碼。趕快來試試看:

$ ftp 192.168.44.227
Connected to 192.168.44.227.
220-
220-|-----------------------------------------------------------------------------------------|
220-| Harry, make sure to update the banner when you get a chance to show who has access here |
220-|-----------------------------------------------------------------------------------------|
220-
220
Name (192.168.44.227:nathan): Anonymous
331 Please specify the password.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.

問Name的時候用Anonymous，問Password時直接按Enter即可登入。接下來從這個協議找找線索:

ftp> ls
550 Permission denied.
200 PORT command successful. Consider using PASV.
150 Here comes the directory listing.
-rw-r--r--    1 0        0             107 Jun 03  2016 note
226 Directory send OK.

發現有一個note，把它下載下來:

ftp> get note
local: note remote: note
200 PORT command successful. Consider using PASV.
150 Opening BINARY mode data connection for note (107 bytes).
100% |********************************|   107       32.44 KiB/s    00:00 ETA
226 Transfer complete.
107 bytes received in 00:00 (25.61 KiB/s)

接下來在本機的根目錄看:

──(kali㉿kali)-[~]
└─$ ls
10.c     Documents     Music     ptrace         target_machine
47080.c  Downloads     note      ptrace-kmod.c  Templates
Desktop  kipotrix_1.1  Pictures  Public         Videos

┌──(kali㉿kali)-[~]
└─$ cat note                      
Elly, make sure you update the payload information. Leave it in your FTP account once your are done, John.

線索: Elly跟John兩個用戶名。

1.3 網頁

因為有80 port，所以用dirb跟nikto掃:

$ dirb http://192.168.44.227

-----------------
DIRB v2.22
By The Dark Raver
-----------------

START_TIME: Mon Oct 31 17:37:24 2022
URL_BASE: http://192.168.44.227/
WORDLIST_FILES: /usr/share/dirb/wordlists/common.txt

-----------------

GENERATED WORDS: 4612

---- Scanning URL: http://192.168.44.227/ ----
+ http://192.168.44.227/.bashrc (CODE:200|SIZE:3771)
+ http://192.168.44.227/.profile (CODE:200|SIZE:675)

-----------------
END_TIME: Mon Oct 31 17:39:12 2022
DOWNLOADED: 4612 - FOUND: 2

$ nikto -h http://192.168.44.227
- Nikto v2.1.6
---------------------------------------------------------------------------
+ Target IP:          192.168.44.227
+ Target Hostname:    192.168.44.227
+ Target Port:        80
+ Start Time:         2022-10-31 17:39:25 (GMT8)
---------------------------------------------------------------------------
+ Server: No banner retrieved
+ The anti-clickjacking X-Frame-Options header is not present.
+ The X-XSS-Protection header is not defined. This header can hint to the user agent to protect against some forms of XSS
+ The X-Content-Type-Options header is not set. This could allow the user agent to render the content of the site in a different fashion to the MIME type
+ No CGI Directories found (use '-C all' to force check all possible dirs)
+ OSVDB-3093: /.bashrc: User home dir was found with a shell rc file. This may reveal file and path information.
+ OSVDB-3093: /.profile: User home dir with a shell profile was found. May reveal directory information and system configuration.
+ ERROR: Error limit (20) reached for host, giving up. Last error:
+ Scan terminated:  17 error(s) and 5 item(s) reported on remote host
+ End Time:           2022-10-31 17:41:55 (GMT8) (150 seconds)
---------------------------------------------------------------------------
+ 1 host(s) tested

總之就是.bashrc跟.profile，內容如下:

bashrc:

# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples

# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) return;;
esac

# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth

# append to the history file, don't overwrite it
shopt -s histappend

# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000

# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize

# If set, the pattern "**" used in a pathname expansion context will
# match all files and zero or more directories and subdirectories.
#shopt -s globstar

# make less more friendly for non-text input files, see lesspipe(1)
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"

# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
    debian_chroot=$(cat /etc/debian_chroot)
fi

# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in
    xterm-color|*-256color) color_prompt=yes;;
esac

# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes

if [ -n "$force_color_prompt" ]; then
    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
    # We have color support; assume it's compliant with Ecma-48
    # (ISO/IEC-6429). (Lack of such support is extremely rare, and such
    # a case would tend to support setf rather than setaf.)
    color_prompt=yes
    else
    color_prompt=
    fi
fi

if [ "$color_prompt" = yes ]; then
    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi
unset color_prompt force_color_prompt

# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
    PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
    ;;
*)
    ;;
esac

# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
    alias ls='ls --color=auto'
    #alias dir='dir --color=auto'
    #alias vdir='vdir --color=auto'

    alias grep='grep --color=auto'
    alias fgrep='fgrep --color=auto'
    alias egrep='egrep --color=auto'
fi

# colored GCC warnings and errors
#export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'

# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'

# Add an "alert" alias for long running commands.  Use like so:
#   sleep 10; alert
alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'

# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.

if [ -f ~/.bash_aliases ]; then
    . ~/.bash_aliases
fi

# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if ! shopt -oq posix; then
  if [ -f /usr/share/bash-completion/bash_completion ]; then
    . /usr/share/bash-completion/bash_completion
  elif [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
  fi
fi

profile:

# ~/.profile: executed by the command interpreter for login shells.
# This file is not read by bash(1), if ~/.bash_profile or ~/.bash_login
# exists.
# see /usr/share/doc/bash/examples/startup-files for examples.
# the files are located in the bash-doc package.

# the default umask is set in /etc/profile; for setting the umask
# for ssh logins, install and configure the libpam-umask package.
#umask 022

# if running bash
if [ -n "$BASH_VERSION" ]; then
    # include .bashrc if it exists
    if [ -f "$HOME/.bashrc" ]; then
    . "$HOME/.bashrc"
    fi
fi

# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/bin" ] ; then
    PATH="$HOME/bin:$PATH"
fi

感覺沒有什麼東西。

1.4 Samba

samba的偵查有好幾種工具可用，詳細可參見這篇[第8天]偵查-Samba - iT 邦幫忙::一起幫忙解決難題，拯救 IT 人的一天。總之，能夠使用的工具有enum4linux、smbmap、smbclient、

$ smbclient -L 192.168.44.227
Password for [WORKGROUP\nathan]:

        Sharename       Type      Comment
        ---------       ----      -------
        print$          Disk      Printer Drivers
        kathy           Disk      Fred, What are we doing here?
        tmp             Disk      All temporary files should be stored here
        IPC$            IPC       IPC Service (red server (Samba, Ubuntu))
Reconnecting with SMB1 for workgroup listing.

        Server               Comment
        ---------            -------

        Workgroup            Master
        ---------            -------
        WORKGROUP            RED

$ enum4linux 192.168.44.227
Starting enum4linux v0.9.1 ( http://labs.portcullis.co.uk/application/enum4linux/ ) on Tue Nov  1 09:13:11 2022

 =========================================( Target Information )=========================================

Target ........... 192.168.44.227
RID Range ........ 500-550,1000-1050
Username ......... ''
Password ......... ''
Known Usernames .. administrator, guest, krbtgt, domain admins, root, bin, none


 ===========================( Enumerating Workgroup/Domain on 192.168.44.227 )===========================


[+] Got domain/workgroup name: WORKGROUP


 ===============================( Nbtstat Information for 192.168.44.227 )===============================

Looking up status of 192.168.44.227
        RED             <00> -         H <ACTIVE>  Workstation Service
        RED             <03> -         H <ACTIVE>  Messenger Service
        RED             <20> -         H <ACTIVE>  File Server Service
        ..__MSBROWSE__. <01> - <GROUP> H <ACTIVE>  Master Browser
        WORKGROUP       <00> - <GROUP> H <ACTIVE>  Domain/Workgroup Name
        WORKGROUP       <1d> -         H <ACTIVE>  Master Browser
        WORKGROUP       <1e> - <GROUP> H <ACTIVE>  Browser Service Elections

        MAC Address = 00-00-00-00-00-00

 ==================================( Session Check on 192.168.44.227 )==================================


[+] Server 192.168.44.227 allows sessions using username '', password ''


 ===============================( Getting domain SID for 192.168.44.227 )===============================

Domain Name: WORKGROUP
Domain Sid: (NULL SID)

[+] Can't determine if host is part of domain or part of a workgroup


 ==================================( OS information on 192.168.44.227 )==================================


[E] Can't get OS info with smbclient


[+] Got OS info for 192.168.44.227 from srvinfo:
        RED            Wk Sv PrQ Unx NT SNT red server (Samba, Ubuntu)
        platform_id     :       500
        os version      :       6.1
        server type     :       0x809a03


 ======================================( Users on 192.168.44.227 )======================================

Use of uninitialized value $users in print at ./enum4linux.pl line 972.
Use of uninitialized value $users in pattern match (m//) at ./enum4linux.pl line 975.

Use of uninitialized value $users in print at ./enum4linux.pl line 986.
Use of uninitialized value $users in pattern match (m//) at ./enum4linux.pl line 988.

 ================================( Share Enumeration on 192.168.44.227 )================================


        Sharename       Type      Comment
        ---------       ----      -------
        print$          Disk      Printer Drivers
        kathy           Disk      Fred, What are we doing here?
        tmp             Disk      All temporary files should be stored here
        IPC$            IPC       IPC Service (red server (Samba, Ubuntu))
Reconnecting with SMB1 for workgroup listing.

        Server               Comment
        ---------            -------

        Workgroup            Master
        ---------            -------
        WORKGROUP            RED

[+] Attempting to map shares on 192.168.44.227

//192.168.44.227/print$ Mapping: DENIED Listing: N/A Writing: N/A
//192.168.44.227/kathy  Mapping: OK Listing: OK Writing: N/A
//192.168.44.227/tmp    Mapping: OK Listing: OK Writing: N/A

[E] Can't understand response:

NT_STATUS_OBJECT_NAME_NOT_FOUND listing \*
//192.168.44.227/IPC$   Mapping: N/A Listing: N/A Writing: N/A

 ===========================( Password Policy Information for 192.168.44.227 )===========================



[+] Attaching to 192.168.44.227 using a NULL share

[+] Trying protocol 139/SMB...

[+] Found domain(s):

        [+] RED
        [+] Builtin

[+] Password Info for Domain: RED

        [+] Minimum password length: 5
        [+] Password history length: None
        [+] Maximum password age: Not Set
        [+] Password Complexity Flags: 000000

                [+] Domain Refuse Password Change: 0
                [+] Domain Password Store Cleartext: 0
                [+] Domain Password Lockout Admins: 0
                [+] Domain Password No Clear Change: 0
                [+] Domain Password No Anon Change: 0
                [+] Domain Password Complex: 0

        [+] Minimum password age: None
        [+] Reset Account Lockout Counter: 30 minutes
        [+] Locked Account Duration: 30 minutes
        [+] Account Lockout Threshold: None
        [+] Forced Log off Time: Not Set



[+] Retieved partial password policy with rpcclient:


Password Complexity: Disabled
Minimum Password Length: 5


 ======================================( Groups on 192.168.44.227 )======================================


[+] Getting builtin groups:


[+]  Getting builtin group memberships:


[+]  Getting local groups:


[+]  Getting local group memberships:


[+]  Getting domain groups:


[+]  Getting domain group memberships:


 =================( Users on 192.168.44.227 via RID cycling (RIDS: 500-550,1000-1050) )=================


[I] Found new SID:
S-1-22-1

[I] Found new SID:
S-1-5-32

[I] Found new SID:
S-1-5-32

[I] Found new SID:
S-1-5-32

[I] Found new SID:
S-1-5-32

[+] Enumerating users using SID S-1-22-1 and logon username '', password ''

S-1-22-1-1000 Unix User\peter (Local User)
S-1-22-1-1001 Unix User\RNunemaker (Local User)
S-1-22-1-1002 Unix User\ETollefson (Local User)
S-1-22-1-1003 Unix User\DSwanger (Local User)
S-1-22-1-1004 Unix User\AParnell (Local User)
S-1-22-1-1005 Unix User\SHayslett (Local User)
S-1-22-1-1006 Unix User\MBassin (Local User)
S-1-22-1-1007 Unix User\JBare (Local User)
S-1-22-1-1008 Unix User\LSolum (Local User)
S-1-22-1-1009 Unix User\IChadwick (Local User)
S-1-22-1-1010 Unix User\MFrei (Local User)
S-1-22-1-1011 Unix User\SStroud (Local User)
S-1-22-1-1012 Unix User\CCeaser (Local User)
S-1-22-1-1013 Unix User\JKanode (Local User)
S-1-22-1-1014 Unix User\CJoo (Local User)
S-1-22-1-1015 Unix User\Eeth (Local User)
S-1-22-1-1016 Unix User\LSolum2 (Local User)
S-1-22-1-1017 Unix User\JLipps (Local User)
S-1-22-1-1018 Unix User\jamie (Local User)
S-1-22-1-1019 Unix User\Sam (Local User)
S-1-22-1-1020 Unix User\Drew (Local User)
S-1-22-1-1021 Unix User\jess (Local User)
S-1-22-1-1022 Unix User\SHAY (Local User)
S-1-22-1-1023 Unix User\Taylor (Local User)
S-1-22-1-1024 Unix User\mel (Local User)
S-1-22-1-1025 Unix User\kai (Local User)
S-1-22-1-1026 Unix User\zoe (Local User)
S-1-22-1-1027 Unix User\NATHAN (Local User)
S-1-22-1-1028 Unix User\www (Local User)
S-1-22-1-1029 Unix User\elly (Local User)

[+] Enumerating users using SID S-1-5-21-864226560-67800430-3082388513 and logon username '', password ''

S-1-5-21-864226560-67800430-3082388513-501 RED\nobody (Local User)
S-1-5-21-864226560-67800430-3082388513-513 RED\None (Domain Group)

[+] Enumerating users using SID S-1-5-32 and logon username '', password ''

S-1-5-32-544 BUILTIN\Administrators (Local Group)
S-1-5-32-545 BUILTIN\Users (Local Group)
S-1-5-32-546 BUILTIN\Guests (Local Group)
S-1-5-32-547 BUILTIN\Power Users (Local Group)
S-1-5-32-548 BUILTIN\Account Operators (Local Group)
S-1-5-32-549 BUILTIN\Server Operators (Local Group)
S-1-5-32-550 BUILTIN\Print Operators (Local Group)

 ==============================( Getting printer info for 192.168.44.227 )==============================

No printers returned.


enum4linux complete on Tue Nov  1 09:13:49 2022

enum4linux列出來的使用者名稱值得注意:

S-1-22-1-1000 Unix User\peter (Local User)
S-1-22-1-1001 Unix User\RNunemaker (Local User)
S-1-22-1-1002 Unix User\ETollefson (Local User)
S-1-22-1-1003 Unix User\DSwanger (Local User)
S-1-22-1-1004 Unix User\AParnell (Local User)
S-1-22-1-1005 Unix User\SHayslett (Local User)
S-1-22-1-1006 Unix User\MBassin (Local User)
S-1-22-1-1007 Unix User\JBare (Local User)
S-1-22-1-1008 Unix User\LSolum (Local User)
S-1-22-1-1009 Unix User\IChadwick (Local User)
S-1-22-1-1010 Unix User\MFrei (Local User)
S-1-22-1-1011 Unix User\SStroud (Local User)
S-1-22-1-1012 Unix User\CCeaser (Local User)
S-1-22-1-1013 Unix User\JKanode (Local User)
S-1-22-1-1014 Unix User\CJoo (Local User)
S-1-22-1-1015 Unix User\Eeth (Local User)
S-1-22-1-1016 Unix User\LSolum2 (Local User)
S-1-22-1-1017 Unix User\JLipps (Local User)
S-1-22-1-1018 Unix User\jamie (Local User)
S-1-22-1-1019 Unix User\Sam (Local User)
S-1-22-1-1020 Unix User\Drew (Local User)
S-1-22-1-1021 Unix User\jess (Local User)
S-1-22-1-1022 Unix User\SHAY (Local User)
S-1-22-1-1023 Unix User\Taylor (Local User)
S-1-22-1-1024 Unix User\mel (Local User)
S-1-22-1-1025 Unix User\kai (Local User)
S-1-22-1-1026 Unix User\zoe (Local User)
S-1-22-1-1027 Unix User\NATHAN (Local User)
S-1-22-1-1028 Unix User\www (Local User)
S-1-22-1-1029 Unix User\elly (Local User)

看起來kathy跟tmp好像很活躍。

        Sharename       Type      Comment
        ---------       ----      -------
        print$          Disk      Printer Drivers
        kathy           Disk      Fred, What are we doing here?
        tmp             Disk      All temporary files should be stored here
        IPC$            IPC       IPC Service (red server (Samba, Ubuntu))
Reconnecting with SMB1 for workgroup listing.

        Server               Comment
        ---------            -------

        Workgroup            Master
        ---------            -------
        WORKGROUP            RED

[+] Attempting to map shares on 192.168.44.227

//192.168.44.227/print$ Mapping: DENIED Listing: N/A Writing: N/A
//192.168.44.227/kathy  Mapping: OK Listing: OK Writing: N/A
//192.168.44.227/tmp    Mapping: OK Listing: OK Writing: N/A

接下來偵查samba裡面到底有什麼東西:

└─$ smbclient //NATHAN/kathy -I 192.168.44.227 -N
Try "help" to get a list of possible commands.
smb: \> ls
  .                                   D        0  Sat Jun  4 00:52:52 2016
  ..                                  D        0  Tue Jun  7 05:39:56 2016
  kathy_stuff                         D        0  Sun Jun  5 23:02:27 2016
  backup                              D        0  Sun Jun  5 23:04:14 2016

                19478204 blocks of size 1024. 16395080 blocks available
smb: \> cd kathy_stuff
smb: \kathy_stuff\> ls
  .                                   D        0  Sun Jun  5 23:02:27 2016
  ..                                  D        0  Sat Jun  4 00:52:52 2016
  todo-list.txt                       N       64  Sun Jun  5 23:02:27 2016

                19478204 blocks of size 1024. 16395076 blocks available
smb: \kathy_stuff\> get todo-list.txt
getting file \kathy_stuff\todo-list.txt of size 64 as todo-list.txt (0.0 KiloBytes/sec) (average 0.0 KiloBytes/sec)
smb: \kathy_stuff\> cd ..
smb: \> cd backup
smb: \backup\> ls
  .                                   D        0  Sun Jun  5 23:04:14 2016
  ..                                  D        0  Sat Jun  4 00:52:52 2016
  vsftpd.conf                         N     5961  Sun Jun  5 23:03:45 2016
  wordpress-4.tar.gz                  N  6321767  Tue Apr 28 01:14:46 2015

                19478204 blocks of size 1024. 16395076 blocks available
smb: \backup\> get vsftpd.conf
getting file \backup\vsftpd.conf of size 5961 as vsftpd.conf (0.9 KiloBytes/sec) (average 0.9 KiloBytes/sec)
smb: \backup\> get wordpress-4.tar.gz
parallel_read returned NT_STATUS_IO_TIMEOUT

解釋一下，//NATHAN/kathy的NATHAN是server，kathy是在這server託管的。NATHAN是enum4linux上列出來的名字，kathy則是本來就有興趣的帳戶。

上面的步驟，把todo-list.txt 、vsftpd.conf跟wordpress-4.tar.gz給載了下來。

todo-list.txt:

$ cat todo-list.txt
I'm making sure to backup anything important for Initech, Kathy

vsftpd.conf:

$ cat vsftpd.conf
# Example config file /etc/vsftpd.conf
#
# The default compiled in settings are fairly paranoid. This sample file
# loosens things up a bit, to make the ftp daemon more usable.
# Please see vsftpd.conf.5 for all compiled in defaults.
#
# READ THIS: This example file is NOT an exhaustive list of vsftpd options.
# Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's
# capabilities.
#
#
# Run standalone?  vsftpd can run either from an inetd or as a standalone
# daemon started from an initscript.
listen=YES
#
# This directive enables listening on IPv6 sockets. By default, listening
# on the IPv6 "any" address (::) will accept connections from both IPv6
# and IPv4 clients. It is not necessary to listen on *both* IPv4 and IPv6
# sockets. If you want that (perhaps because you want to listen on specific
# addresses) then you must run two copies of vsftpd with two configuration
# files.
listen_ipv6=NO
#
# Allow anonymous FTP? (Disabled by default).
anonymous_enable=YES
anon_root=/var/ftp/anonymous
#
# Uncomment this to allow local users to log in.
local_enable=YES
#
# Uncomment this to enable any form of FTP write command.
#write_enable=YES
#
# Default umask for local users is 077. You may wish to change this to 022,
# if your users expect that (022 is used by most other ftpd's)
#local_umask=022
#
# Uncomment this to allow the anonymous FTP user to upload files. This only
# has an effect if the above global write enable is activated. Also, you will
# obviously need to create a directory writable by the FTP user.
#anon_upload_enable=YES
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
#anon_mkdir_write_enable=YES
#
# Activate directory messages - messages given to remote users when they
# go into a certain directory.
dirmessage_enable=YES
#
# If enabled, vsftpd will display directory listings with the time
# in  your  local  time  zone.  The default is to display GMT. The
# times returned by the MDTM FTP command are also affected by this
# option.
use_localtime=YES
#
# Activate logging of uploads/downloads.
xferlog_enable=YES
#
# Make sure PORT transfer connections originate from port 20 (ftp-data).
connect_from_port_20=YES
#
# If you want, you can arrange for uploaded anonymous files to be owned by
# a different user. Note! Using "root" for uploaded files is not
# recommended!
#chown_uploads=YES
#chown_username=whoever
#
# You may override where the log file goes if you like. The default is shown
# below.
#xferlog_file=/var/log/vsftpd.log
#
# If you want, you can have your log file in standard ftpd xferlog format.
# Note that the default log file location is /var/log/xferlog in this case.
#xferlog_std_format=YES
#
# You may change the default value for timing out an idle session.
#idle_session_timeout=600
#
# You may change the default value for timing out a data connection.
#data_connection_timeout=120
#
# It is recommended that you define on your system a unique user which the
# ftp server can use as a totally isolated and unprivileged user.
#nopriv_user=ftpsecure
#
# Enable this and the server will recognise asynchronous ABOR requests. Not
# recommended for security (the code is non-trivial). Not enabling it,
# however, may confuse older FTP clients.
#async_abor_enable=YES
#
# By default the server will pretend to allow ASCII mode but in fact ignore
# the request. Turn on the below options to have the server actually do ASCII
# mangling on files when in ASCII mode.
# Beware that on some FTP servers, ASCII support allows a denial of service
# attack (DoS) via the command "SIZE /big/file" in ASCII mode. vsftpd
# predicted this attack and has always been safe, reporting the size of the
# raw file.
# ASCII mangling is a horrible feature of the protocol.
#ascii_upload_enable=YES
#ascii_download_enable=YES
#
# You may fully customise the login banner string:
#ftpd_banner=Welcome to blah FTP service.
banner_file=/etc/vsftpd.banner
#
# You may specify a file of disallowed anonymous e-mail addresses. Apparently
# useful for combatting certain DoS attacks.
#deny_email_enable=YES
# (default follows)
#banned_email_file=/etc/vsftpd.banned_emails
#
# You may restrict local users to their home directories.  See the FAQ for
# the possible risks in this before using chroot_local_user or
# chroot_list_enable below.
chroot_local_user=YES
userlist_enable=YES
local_root=/etc
#
# You may specify an explicit list of local users to chroot() to their home
# directory. If chroot_local_user is YES, then this list becomes a list of
# users to NOT chroot().
# (Warning! chroot'ing can be very dangerous. If using chroot, make sure that
# the user does not have write access to the top level directory within the
# chroot)
#chroot_local_user=YES
#chroot_list_enable=YES
# (default follows)
#chroot_list_file=/etc/vsftpd.chroot_list
#
# You may activate the "-R" option to the builtin ls. This is disabled by
# default to avoid remote users being able to cause excessive I/O on large
# sites. However, some broken FTP clients such as "ncftp" and "mirror" assume
# the presence of the "-R" option, so there is a strong case for enabling it.
#ls_recurse_enable=YES
#
# Customization
#
# Some of vsftpd's settings don't fit the filesystem layout by
# default.
#
# This option should be the name of a directory which is empty.  Also, the
# directory should not be writable by the ftp user. This directory is used
# as a secure chroot() jail at times vsftpd does not require filesystem
# access.
secure_chroot_dir=/var/run/vsftpd/empty
#
# This string is the name of the PAM service vsftpd will use.
pam_service_name=vsftpd
#
# This option specifies the location of the RSA certificate to use for SSL
# encrypted connections.
rsa_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
rsa_private_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
ssl_enable=NO

#
# Uncomment this to indicate that vsftpd use a utf8 filesystem.
#utf8_filesystem=YES
pasv_enable=no

好像也沒什麼有用的資訊...


#VMware 导入 ovf 文件格式异常报错 #attack #Vulnhub #nmap #辨識hash類型 #解密 #John the Ripper (JTR) 密碼暴力破解工具 #wordpress #Wordpress后台getshell五种方法 #wpscan #wordpress外掛漏洞 #LFI #php reverse shell #39646 #39772 #32位元/linux kernel 4.4.0-21/ubuntu 16.04提權漏洞

nathan2009729




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