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b2evolution CMS <6.11.6 - Open Redirect

ID: CVE-2020-22840

Severity: medium

Author: geeknik

Tags: cve,cve2020,packetstorm,edb,redirect,b2evolution

Description

Section titled “Description”

b2evolution CMS before 6.11.6 contains an open redirect vulnerability via the redirect_to parameter in email_passthrough.php. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.

YAML Source

Section titled “YAML Source”
id: CVE-2020-22840


info:
  name: b2evolution CMS <6.11.6 - Open Redirect
  author: geeknik
  severity: medium
  description: b2evolution CMS before 6.11.6 contains an open redirect vulnerability via the redirect_to parameter in email_passthrough.php. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.
  impact: |
    This vulnerability can be exploited by attackers to trick users into visiting malicious websites, potentially leading to phishing attacks, malware infections, or unauthorized access to sensitive information.
  remediation: |
    Upgrade b2evolution CMS to version 6.11.6 or later to mitigate the open redirect vulnerability (CVE-2020-22840).
  reference:
    - https://github.com/b2evolution/b2evolution/issues/102
    - http://packetstormsecurity.com/files/161362/b2evolution-CMS-6.11.6-Open-Redirection.html
    - https://www.exploit-db.com/exploits/49554
    - https://nvd.nist.gov/vuln/detail/CVE-2020-22840
    - 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-2020-22840
    cwe-id: CWE-601
    epss-score: 0.01031
    epss-percentile: 0.83821
    cpe: cpe:2.3:a:b2evolution:b2evolution:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: b2evolution
    product: b2evolution
  tags: cve,cve2020,packetstorm,edb,redirect,b2evolution


http:
  - method: GET
    path:
      - "{{BaseURL}}/email_passthrough.php?email_ID=1&type=link&email_key=5QImTaEHxmAzNYyYvENAtYHsFu7fyotR&redirect_to=http%3A%2F%2Finteract.sh"


    matchers:
      - type: regex
        part: header
        regex:
          - '(?m)^(?:Location\s*?:\s*?)(?:https?://|//)?(?:[a-zA-Z0-9\-_]*\.)?interact\.sh(?:\s*?)$'
# digest: 490a00463044022014dfb14b0e3effb6c0bb55f214101cf0212b935aa9bd6704940b674daa0004a2022063bb1aef386d8c9c763f40b5a08257f6056763c881fc874eec835c67d65f5e47:922c64590222798bb761d5b6d8e72950

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/2020/CVE-2020-22840.yaml"

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