CVE-2018-5999 : Exploit Details and Defense Strategies

A vulnerability was found in AsusWRT versions prior to 3.0.0.4.384_10007. The handle_request function in the router/httpd/httpd.c file does not properly authenticate POST requests, allowing unauthorized access.

Understanding CVE-2018-5999

This CVE identifies a security flaw in AsusWRT routers that could be exploited by attackers to bypass authentication mechanisms.

What is CVE-2018-5999?

AsusWRT firmware versions before 3.0.0.4.384_10007 are susceptible to a vulnerability where POST requests are not adequately authenticated, potentially leading to unauthorized access to the router.

The Impact of CVE-2018-5999

This vulnerability could allow malicious actors to execute unauthorized actions on affected AsusWRT routers, compromising the security and privacy of the network.

Technical Details of CVE-2018-5999

This section provides more in-depth technical information about the CVE.

Vulnerability Description

In the handle_request function within the router/httpd/httpd.c file, POST requests are processed even if authentication fails, enabling attackers to bypass security measures.

Affected Systems and Versions

Vulnerable Systems: AsusWRT versions prior to 3.0.0.4.384_10007
Affected Component: handle_request function in router/httpd/httpd.c

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted POST requests to the router, bypassing authentication checks and gaining unauthorized access.

Mitigation and Prevention

Protecting systems from CVE-2018-5999 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the AsusWRT firmware to version 3.0.0.4.384_10007 or later to patch the vulnerability.
Monitor network activity for any signs of unauthorized access.

Long-Term Security Practices

Regularly update router firmware to address security vulnerabilities.
Implement strong and unique passwords for router access to prevent unauthorized entry.

Patching and Updates

Ensure timely installation of firmware updates provided by Asus to mitigate the CVE-2018-5999 vulnerability.