strace - Privilege Escalation

ID: privesc-strace

Severity: high

Author: daffainfo

Tags: code,linux,strace,privesc,local

Description

strace is a diagnostic, debugging, and instructional utility for Linux. It is used to monitor the system calls and signals that a program receives, allowing users to trace and analyze its interactions with the kernel.

YAML Source

id: privesc-strace

info:
  name: strace - Privilege Escalation
  author: daffainfo
  severity: high
  description: |
    strace is a diagnostic, debugging, and instructional utility for Linux. It is used to monitor the system calls and signals that a program receives, allowing users to trace and analyze its interactions with the kernel.
  reference:
    - https://gtfobins.github.io/gtfobins/strace/
  metadata:
    verified: true
    max-request: 3
  tags: code,linux,strace,privesc,local

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

  - engine:
      - sh
      - bash
    source: |
      strace -o /dev/null whoami

  - engine:
      - sh
      - bash
    source: |
      sudo strace -o /dev/null 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
# digest: 4b0a00483046022100b2f29c4110e6326a53b2a08ff54e03c735ea900b6119fd1496c8e226903e3f59022100c9f434d8ac041c8939c163fe7dcfc253d872aa86f7a38bda739bb672982df616:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

$ nuclei -u "URL" -t "code/privilege-escalation/linux/binary/privesc-strace.yaml"

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