Overview
A recently discovered vulnerability, CVE-2025-44882, has been identified in Wavlink’s WL-WN579A3 v1.0. This vulnerability poses a significant threat to the security of systems and networks that utilize Wavlink’s product, due to its potential to enable attackers to execute arbitrary commands via a crafted input. Given the widespread use of Wavlink’s products, this vulnerability can potentially impact a large number of users and organizations, leading to system compromise and data leakage.
Vulnerability Summary
CVE ID: CVE-2025-44882
Severity: Critical (9.8 CVSS Severity Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise or data leakage
Affected Products
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Product | Affected Versions
Wavlink WL-WN579A3 | v1.0
How the Exploit Works
The vulnerability resides in the /cgi-bin/firewall.cgi component of the Wavlink WL-WN579A3 v1.0. Attackers can exploit this vulnerability by sending a specially crafted input to the vulnerable component. This allows the attacker to inject malicious commands, resulting in the execution of arbitrary commands on the system. The execution of these commands can lead to unauthorized access, system compromise, and potential data leakage.
Conceptual Example Code
A conceptual example of how this vulnerability might be exploited might look something like this:
POST /cgi-bin/firewall.cgi HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
command=;cat /etc/passwdIn this example, the attacker is injecting a command (`cat /etc/passwd`) into the `command` parameter. This command outputs the contents of the `/etc/passwd` file, which contains user account information. This is a simple example, but in reality, the injected commands could be much more harmful and lead to full system compromise.
Mitigation and Prevention
Users of Wavlink WL-WN579A3 v1.0 are advised to apply the vendor patch as soon as possible to mitigate the vulnerability. In situations where the patch cannot be immediately applied, temporary mitigation can be achieved through the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS).
These systems can potentially detect and block attempts to exploit this vulnerability, although this is not a guaranteed solution and should only be seen as a temporary measure until the patch can be applied. It is important to constantly monitor and update your security systems to ensure the highest level of protection against vulnerabilities such as CVE-2025-44882.