privesc-awk: awk - Privilege Escalation

id: privesc-awk

info:
  name: awk - Privilege Escalation
  author: daffainfo
  severity: high
  description: |
    AWK is a domain-specific language designed for text processing and typically used as a data extraction and reporting tool. Like sed and grep, it is a filter, and is a standard feature of most Unix-like operating systems.
  reference:
    - https://gtfobins.github.io/gtfobins/awk/
  metadata:
    verified: true
    max-request: 3
  tags: code,linux,awk,privesc,local

self-contained: true
code:
  - engine:
      - sh
      - bash
    source: |
        whoami

  - engine:
      - sh
      - bash
    source: |
        awk 'BEGIN {system("whoami")}'

  - engine:
      - sh
      - bash
    source: |
        sudo awk 'BEGIN {system("whoami")}'

    matchers-condition: and
    matchers:
      - type: word
        part: code_1_response
        words:
          - "root"
        negative: true

      - type: dsl
        dsl:
          - 'contains(code_2_response, "root")'
          - 'contains(code_3_response, "root")'
        condition: or
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