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Nuclei Templates

Nsenter - Privilege Escalation

ID: privesc-nsenter

Severity: high

Author: daffainfo

Tags: code,linux,nsenter,privesc,local

Description

Section titled “Description”

nsenter is a command-line utility in Linux that allows a user to enter into an existing namespace. It is commonly used for troubleshooting and managing namespaces in containerized environments. By using nsenter, users can enter into a specific namespace and execute commands within that namespace, which can be helpful for various system administration tasks.

YAML Source

Section titled “YAML Source”
id: privesc-nsenter


info:
  name: Nsenter - Privilege Escalation
  author: daffainfo
  severity: high
  description: |
    nsenter is a command-line utility in Linux that allows a user to enter into an existing namespace. It is commonly used for troubleshooting and managing namespaces in containerized environments. By using nsenter, users can enter into a specific namespace and execute commands within that namespace, which can be helpful for various system administration tasks.
  reference:
    - https://gtfobins.github.io/gtfobins/nsenter/
  metadata:
    verified: true
    max-request: 3
  tags: code,linux,nsenter,privesc,local


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


  - engine:
      - sh
      - bash
    source: |
      nsenter whoami


  - engine:
      - sh
      - bash
    source: |
      sudo nsenter 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: 4a0a00473045022100b0fe9d2b38f98694097fd9a21fa5aae8da82af52cc5a08356271f513be48911b02200456e2a5eb63cf7eedb23f5dfdb2a2f451e385fe94a657b9c7dc1a0851ae8b61:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “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.

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

View on Github