Overview
In the constantly evolving world of cybersecurity, new vulnerabilities are discovered regularly. One such vulnerability has recently been identified in the FW-WGS-804HPT v1.305b241111, coded as CVE-2025-44883. This vulnerability is of particular concern due to its severity and the potential for system compromise or data leakage.
Users of FW-WGS-804HPT v1.305b241111 should pay special attention to this vulnerability, as it allows attackers to exploit a stack overflow via the tacIp parameter in the web_tacplus_serverEdit_post function. This could lead to unauthorized access, disruption of services, or worse, extraction of sensitive data.
Vulnerability Summary
CVE ID: CVE-2025-44883
Severity: Critical (9.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage
Affected Products
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Product | Affected Versions
FW-WGS-804HPT | v1.305b241111
How the Exploit Works
The vulnerability is a stack overflow issue that can be triggered by an attacker sending a specially crafted packet to the targeted system. This packet contains an overly long string in the ‘tacIp’ parameter in the web_tacplus_serverEdit_post function.
The function fails to properly validate and sanitize this input, which can overwrite the stack buffer. This opens up the potential for arbitrary code execution, which can lead to full system compromise.
Conceptual Example Code
Here is a conceptual example of how the vulnerability might be exploited. This represents a malicious HTTP POST request that sends an overly long string in the ‘tacIp’ field:
POST /web_tacplus_serverEdit_post HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
tacIp=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA... (continued until buffer overflow)In this example, ‘AAAAAAAA…’ represents the overly long string that overflows the stack buffer.
Please note, this example is purely conceptual and is meant to illustrate how an attacker might exploit the vulnerability. It is not intended to be used as an actual attack.
Mitigation Guidance
To mitigate this vulnerability, users are advised to apply the vendor-supplied patch as soon as possible. If this is not feasible or until the patch can be applied, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure, detecting and blocking attempts to exploit this vulnerability.