CVE-2018-16119 : Exploit Details and Defense Strategies

TP-Link WR1043nd (Firmware Version 3) httpd Server Stack-based Buffer Overflow

Understanding CVE-2018-16119

What is CVE-2018-16119?

The httpd server of TP-Link WR1043nd (Firmware Version 3) is vulnerable to a stack-based buffer overflow, allowing remote attackers to execute arbitrary code.

The Impact of CVE-2018-16119

This vulnerability can be exploited by remote attackers through a malicious request to /userRpm/MediaServerFoldersCfgRpm.htm, potentially leading to unauthorized code execution.

Technical Details of CVE-2018-16119

Vulnerability Description

A stack-based buffer overflow in the httpd server of TP-Link WR1043nd (Firmware Version 3) enables remote attackers to execute arbitrary code via a malicious request to /userRpm/MediaServerFoldersCfgRpm.htm.

Affected Systems and Versions

Product: TP-Link WR1043nd
Firmware Version: 3

Exploitation Mechanism

Remote attackers can exploit this vulnerability by sending a malicious request to /userRpm/MediaServerFoldersCfgRpm.htm, gaining the ability to execute arbitrary code.

Mitigation and Prevention

Immediate Steps to Take

Disable remote access to the affected server if not required.
Implement network segmentation to limit access to vulnerable devices.
Regularly monitor network traffic for any suspicious activity.

Long-Term Security Practices

Keep firmware and software up to date to patch known vulnerabilities.
Conduct regular security assessments and penetration testing to identify and address weaknesses.

Patching and Updates

Check for firmware updates from TP-Link and apply patches promptly to mitigate the vulnerability.