elFinder 2.1.58 - Remote Code Execution

2022-01-2617:57:45

ProjectDiscovery

github.com

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.6 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.973 High

EPSS

Percentile

99.9%

JSON

elFinder 2.1.58 is impacted by multiple remote code execution vulnerabilities that could allow an attacker to execute arbitrary code and commands on the server hosting the elFinder PHP connector, even with minimal configuration.

id: CVE-2021-32682

info:
  name: elFinder 2.1.58 - Remote Code Execution
  author: smaranchand
  severity: critical
  description: elFinder 2.1.58 is impacted by multiple remote code execution vulnerabilities that could allow an attacker to execute arbitrary code and commands on the server hosting the elFinder PHP connector, even with minimal configuration.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected system.
  remediation: Update to elFinder 2.1.59 or later. As a workaround, ensure the connector is not exposed without authentication.
  reference:
    - https://smaranchand.com.np/2022/01/organization-vendor-application-security/
    - https://blog.sonarsource.com/elfinder-case-study-of-web-file-manager-vulnerabilities
    - https://github.com/Studio-42/elFinder/security/advisories/GHSA-wph3-44rj-92pr
    - https://nvd.nist.gov/vuln/detail/CVE-2021-32682
    - https://github.com/Studio-42/elFinder/commit/a106c350b7dfe666a81d6b576816db9fe0899b17
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2021-32682
    cwe-id: CWE-22
    epss-score: 0.97293
    epss-percentile: 0.99854
    cpe: cpe:2.3:a:std42:elfinder:*:*:*:*:*:*:*:*
  metadata:
    max-request: 9
    vendor: std42
    product: "elfinder"
    github: https://github.com/Studio-42/elFinder
  tags: cve2021,cve,elfinder,misconfig,rce,oss,std42

http:
  - method: GET
    path:
      - "{{BaseURL}}/admin/elfinder/elfinder-cke.html"
      - "{{BaseURL}}/assets/backend/elfinder/elfinder-cke.html"
      - "{{BaseURL}}/assets/elFinder-2.1.9/elfinder.html"
      - "{{BaseURL}}/assets/elFinder/elfinder.html"
      - "{{BaseURL}}/backend/elfinder/elfinder-cke.html"
      - "{{BaseURL}}/elfinder/elfinder-cke.html"
      - "{{BaseURL}}/uploads/assets/backend/elfinder/elfinder-cke.html"
      - "{{BaseURL}}/uploads/assets/backend/elfinder/elfinder.html"
      - "{{BaseURL}}/uploads/elfinder/elfinder-cke.html"

    stop-at-first-match: true

    matchers-condition: and
    matchers:
      - type: word
        words:
          - "elfinder"
          - "php/connector"
        condition: and

      - type: status
        status:
          - 200
# digest: 490a0046304402203fd374bcfc7e0d1fb114e43721e82391d332bf970a505b476c6a4f46234d245002202cda416ffb5f16ec23002766e43acc4da7b06bf2294d3e7524a492b53d52fa15:922c64590222798bb761d5b6d8e72950