CVE-2025-3328

Vulnerability: Buffer Overflow in Tenda AC1206

  • Description: A critical buffer overflow vulnerability exists in the form_fast_setting_wifi_set function within the /goform/fast_setting_wifi_set file of Tenda AC1206 firmware version 15.03.06.23.
  • Severity: Critical
  • Affected Parameters: ssid, timeZone (other parameters might be vulnerable as well).
  • Attack Vector: Remote
  • Exploit: Publicly disclosed exploit available.

Remediation/Mitigation Strategy

  1. Immediate Action: Patch or Firmware Update: The primary and most effective solution is to immediately apply the official patch or update to the latest firmware version released by Tenda, if available. This is the most direct way to address the underlying code vulnerability.

  2. Vendor Notification and Monitoring: Continuously monitor Tenda’s website and security advisories for updated information and patches related to CVE-2025-3328. If a patch does not exist file a bug report with Tenda support to notify them about the CVE.

  3. Network Segmentation: Isolate the Tenda AC1206 device within a separate network segment. This limits the potential impact if the device is compromised. Use firewalls and access control lists (ACLs) to restrict communication between the device’s network segment and other critical network resources.

  4. Input Validation and Sanitization (If Applicable): While not directly applicable to end-users, developers and Tenda should implement robust input validation and sanitization on the ssid and timeZone parameters (and potentially other parameters of the form_fast_setting_wifi_set function). Limit the size of input strings to prevent overflow.

  5. Disable Remote Administration (If Possible): If remote administration of the Tenda AC1206 device is not essential, disable it. This reduces the attack surface.

  6. Strong Passwords: Ensure that strong, unique passwords are used for all accounts on the device, including the administrator account.

  7. Intrusion Detection/Prevention System (IDS/IPS): Deploy an Intrusion Detection System (IDS) and/or Intrusion Prevention System (IPS) capable of detecting and blocking buffer overflow attacks. Configure the IDS/IPS with rules specific to known exploits targeting Tenda devices or generic buffer overflow signatures.

  8. Web Application Firewall (WAF): Although it is a router, implement a Web Application Firewall (WAF) if possible as another layer to validate, filter, and block malicious HTTP requests targeting the vulnerable endpoint.

  9. Monitor Network Traffic: Implement network monitoring to detect unusual traffic patterns or suspicious activity originating from or directed towards the Tenda AC1206 device.

  10. Vulnerability Scanning: Conduct regular vulnerability scans of the Tenda AC1206 device using a reputable vulnerability scanner. This helps identify potential weaknesses and confirm the effectiveness of implemented mitigations.

  11. Device Replacement (If Necessary): If a patch is unavailable and the device is deemed critical, consider replacing the Tenda AC1206 with a more secure alternative from a vendor with a better security track record and a commitment to timely security updates.

Assigner

Date

  • Published Date: 2025-04-07 00:31:08
  • Updated Date: 2025-04-07 18:17:38

More Details

CVE-2025-3328