CVE-2019-16903 : Security Advisory and Response

Platinum UPnP SDK 1.2.0 has a vulnerability in Core/PltHttpServer.cpp that allows for unauthorized directory access due to an incorrect directory traversal check.

Understanding CVE-2019-16903

This CVE involves a flaw in Platinum UPnP SDK 1.2.0 that can be exploited for unauthorized directory access.

What is CVE-2019-16903?

The vulnerability in Platinum UPnP SDK 1.2.0, specifically in Core/PltHttpServer.cpp, stems from an issue during directory traversal. Instead of correctly checking for "../", it erroneously checks for "/..", enabling unauthorized access to directories.

The Impact of CVE-2019-16903

This vulnerability allows attackers to access directories they should not have permission to, potentially leading to unauthorized data disclosure or manipulation.

Technical Details of CVE-2019-16903

Platinum UPnP SDK 1.2.0 vulnerability details.

Vulnerability Description

The flaw in Core/PltHttpServer.cpp allows unauthorized directory access due to an incorrect directory traversal check.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: 1.2.0 (affected)

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating directory traversal checks to gain unauthorized access to directories.

Mitigation and Prevention

Protecting systems from CVE-2019-16903.

Immediate Steps to Take

Implement access controls to restrict directory access.
Regularly monitor and audit directory access for unauthorized activities.

Long-Term Security Practices

Conduct regular security assessments and code reviews to identify and address similar vulnerabilities.
Educate developers on secure coding practices to prevent directory traversal issues.

Patching and Updates

Apply patches or updates provided by Platinum UPnP SDK to fix the directory traversal vulnerability.