Shell Execution via Git - Linux

calendar Sep 2, 2024 · attack.execution attack.t1059  ·
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Detects the use of the "git" utility to execute a shell. Such behavior may be associated with privilege escalation, unauthorized command execution, or to break out from restricted environments.

Sigma rule (View on GitHub)

 1title: Shell Execution via Git - Linux
 2id: 47b3bbd4-1bf7-48cc-84ab-995362aaa75a
 3status: experimental
 4description: |
 5        Detects the use of the "git" utility to execute a shell. Such behavior may be associated with privilege escalation, unauthorized command execution, or to break out from restricted environments.
 6references:
 7    - https://gtfobins.github.io/gtfobins/git/#shell
 8author: Li Ling, Andy Parkidomo, Robert Rakowski, Blake Hartstein (Bloomberg L.P.)
 9date: 2024-09-02
10tags:
11    - attack.execution
12    - attack.t1059
13logsource:
14    category: process_creation
15    product: linux
16detection:
17    selection:
18        ParentImage|endswith: '/git'
19        ParentCommandLine|contains|all:
20            - ' -p '
21            - 'help'
22        CommandLine|contains:
23            - 'bash 0<&1'
24            - 'dash 0<&1'
25            - 'sh 0<&1'
26    condition: selection
27falsepositives:
28    - Unknown
29level: high

References

  • git | GTFOBins

    .. / git Shell File write File read Sudo Limited SUID Shell It can be used to break out from restricted environments by spawning an interactive system shell. PAGER='sh -c "exec sh 0<&1"' git -p hel...


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