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Sympa version =>6.2.16 - Cross-Site Scripting

ID: CVE-2018-1000671

Severity: medium

Author: 0x_Akoko

Tags: cve,cve2018,redirect,sympa,debian

Description

Section titled “Description”

Sympa version 6.2.16 and later contains a URL Redirection to Untrusted Site vulnerability in the referer parameter of the wwsympa fcgi login action that can result in open redirection and reflected cross-site scripting via data URIs.

YAML Source

Section titled “YAML Source”
id: CVE-2018-1000671


info:
  name: Sympa version =>6.2.16 - Cross-Site Scripting
  author: 0x_Akoko
  severity: medium
  description: Sympa version 6.2.16 and later contains a URL Redirection to Untrusted Site vulnerability in the referer parameter of the wwsympa fcgi login action that can result in open redirection and reflected cross-site scripting via data URIs.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code in the context of the victim's browser, leading to potential session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Upgrade to a patched version of Sympa (>=6.2.17) or apply the necessary security patches provided by the vendor.
  reference:
    - https://github.com/sympa-community/sympa/issues/268
    - https://vuldb.com/?id.123670
    - https://nvd.nist.gov/vuln/detail/CVE-2018-1000671
    - https://lists.debian.org/debian-lts-announce/2018/09/msg00023.html
    - https://lists.debian.org/debian-lts-announce/2020/11/msg00015.html
  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-2018-1000671
    cwe-id: CWE-601
    epss-score: 0.00422
    epss-percentile: 0.74167
    cpe: cpe:2.3:a:sympa:sympa:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: sympa
    product: sympa
    shodan-query: http.html:"sympa"
    fofa-query: body="sympa"
  tags: cve,cve2018,redirect,sympa,debian


http:
  - method: GET
    path:
      - '{{BaseURL}}/sympa?referer=http://interact.sh&passwd=&previous_action=&action=login&action_login=&previous_list=&list=&email='


    matchers:
      - type: regex
        part: header
        regex:
          - '(?m)^(?:Location\s*?:\s*?)(?:https?:\/\/|\/\/|\/\\\\|\/\\)(?:[a-zA-Z0-9\-_\.@]*)interact\.sh\/?(\/|[^.].*)?$' # https://regex101.com/r/L403F0/1
# digest: 490a0046304402204a801ab8be3c271b33337216cf32fa4dd4401872077c7fd8f0182fd9513a22f90220279f535a3d4f74f4e8ff29708bc9c98a6a60fedbec47df428c14aa7b0b86aebc: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/2018/CVE-2018-1000671.yaml"

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