Overview
The cybersecurity landscape is continually evolving, with new vulnerabilities being discovered on a regular basis. One such vulnerability, identified as CVE-2025-6164, has been recently found in TOTOLINK A3002R 4.0.0-B20230531.1404. This critical security flaw affects the HTTP POST Request Handler component, specifically in the /boafrm/formMultiAP file. Its severity and potential for exploitation make this vulnerability particularly concerning.
The risks are significant due to the potential for system compromise or data leakage. Any entity using the affected versions of the TOTOLINK A3002R should take immediate steps to mitigate the risk and protect their system integrity and data confidentiality.
Vulnerability Summary
CVE ID: CVE-2025-6164
Severity: Critical (CVSS 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise or data leakage
Affected Products
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Product | Affected Versions
TOTOLINK A3002R | 4.0.0-B20230531.1404
How the Exploit Works
The vulnerability lies in the manipulation of the ‘submit-url’ argument within the HTTP POST Request Handler of the TOTOLINK A3002R. By manipulating this argument, the attacker can trigger a buffer overflow condition. Buffer overflow exploits typically involve the input of an amount of data that exceeds the buffer’s capacity, which then overwrites adjacent memory locations. In this case, it can lead to a system compromise or potential data leakage.
Conceptual Example Code
Here’s a conceptual representation of an HTTP POST request that might exploit this vulnerability:
POST /boafrm/formMultiAP HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
submit-url=...[malicious_buffer_overflow_payload]In the above example, the ‘submit-url’ argument is appended with a malicious payload designed to exploit the buffer overflow vulnerability.
Recommended Mitigation
To mitigate this vulnerability, TOTOLINK A3002R users should apply the vendor patch as soon as it becomes available. In the meantime, users can employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation. Regular monitoring for any unusual activity, and having robust incident response procedures in place, are also essential for limiting potential damage.