choom - Privilege Escalation

ID: privesc-choom

Severity: high

Author: daffainfo

Tags: code,linux,choom,privesc,local

Description

choom is a command-line utility in Linux that allows users to change the memory limits of a process. It can be used for privilege escalation by manipulating the memory limits of a process to gain elevated privileges.

YAML Source

id: privesc-choom

info:
  name: choom - Privilege Escalation
  author: daffainfo
  severity: high
  description: |
    choom is a command-line utility in Linux that allows users to change the memory limits of a process. It can be used for privilege escalation by manipulating the memory limits of a process to gain elevated privileges.
  reference:
    - https://gtfobins.github.io/gtfobins/choom/
  metadata:
    verified: true
    max-request: 3
  tags: code,linux,choom,privesc,local

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

  - engine:
      - sh
      - bash
    source: |
      choom -n 0 whoami

  - engine:
      - sh
      - bash
    source: |
      sudo choom -n 0 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: 4a0a00473045022100833eb5a918f652c92c428b4a145d56a977ebe77c462fe2ad15f32d8ccb009933022032f5d3ea80e0145f31ee80aa91f0efb26e3a7a9ba25165ae72d3938d314e597b: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-choom.yaml"

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