elvish - Privilege Escalation

ID: privesc-elvish

Severity: high

Author: daffainfo

Tags: code,linux,elvish,privesc,local

Description

elvish is a Unix shell that emphasizes expressiveness and extensibility. It aims to provide a more user-friendly and programmable shell experience, with features such as a powerful scripting language, a rich set of data types, and a clean and consistent syntax.

YAML Source

id: privesc-elvish

info:
  name: elvish - Privilege Escalation
  author: daffainfo
  severity: high
  description: |
    elvish is a Unix shell that emphasizes expressiveness and extensibility. It aims to provide a more user-friendly and programmable shell experience, with features such as a powerful scripting language, a rich set of data types, and a clean and consistent syntax.
  reference:
    - https://gtfobins.github.io/gtfobins/elvish/
  metadata:
    verified: true
    max-request: 3
  tags: code,linux,elvish,privesc,local

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

  - engine:
      - sh
      - bash
    source: |
      elvish -c 'whoami'

  - engine:
      - sh
      - bash
    source: |
      sudo elvish -c '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: 4a0a00473045022100b374ffd7c54c04c79d5c42eecd868d80ebb12eaf94a843f8aabf569ee1b9d10902207a107d6775214547fc236e7e0f5cd3a62c9bc5db0e4dd6611333512d3f9f7271:922c64590222798bb761d5b6d8e72950

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-elvish.yaml"

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