Acexy Wireless-N WiFi Repeater REV 1.0 - Repeater Password Disclosure

highseverity

7.5CVSS score

4.2%likelihood of exploitation, next 30 days

91%of all CVEs are less likely

Readycheck to confirm it

Acexy Wireless-N WiFi Repeater REV 1.0 is vulnerable to password disclosure because the password.html page of the web management interface contains the administrator account password in plaintext.

Impact

An attacker can obtain the repeater's password, compromising the security of the network.

Fix

Update the firmware to the latest version or replace the vulnerable repeater with a secure alternative.

How to confirm it

Send: GET {{BaseURL}}/password.html
Positive when: contains "Password Setting" and "addCfg('username'" and "addCfg('newpass'" AND status 200

Run it with nuclei: nuclei -id CVE-2021-28937 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2021-28937

info:
  name: Acexy Wireless-N WiFi Repeater REV 1.0 - Repeater Password Disclosure
  author: geeknik
  severity: high
  description: Acexy Wireless-N WiFi Repeater REV 1.0 is vulnerable to password disclosure because the password.html page of the web management interface contains the administrator account password in plaintext.
  impact: |
    An attacker can obtain the repeater's password, compromising the security of the network.
  remediation: |
    Update the firmware to the latest version or replace the vulnerable repeater with a secure alternative.
  reference:
    - https://blog-ssh3ll.medium.com/acexy-wireless-n-wifi-repeater-vulnerabilities-8bd5d14a2990
    - http://acexy.com
    - https://nvd.nist.gov/vuln/detail/CVE-2021-28937
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/ARPSyndicate/kenzer-templates
  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-2021-28937
    cwe-id: CWE-312
    epss-score: 0.04155
    epss-percentile: 0.90951
    cpe: cpe:2.3:h:acexy:wireless-n_wifi_repeater:1.0:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: acexy
    product: wireless-n_wifi_repeater
  tags: cve2021,cve,acexy,disclosure,iot,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/password.html"

    matchers-condition: and
    matchers:
      - type: word
        words:
          - "Password Setting"
          - "addCfg('username'"
          - "addCfg('newpass'"
        condition: and

      - type: status
        status:
          - 200

References

Use this check only on systems you are authorised to test. Where the data comes from