CVE-2018-19941 Explained : Impact and Mitigation

A security flaw has been discovered in QNAP NAS, allowing unauthorized access to confidential data stored in plain text within cookies. QNAP has released fixes in subsequent versions.

Understanding CVE-2018-19941

What is CVE-2018-19941?

This CVE refers to a vulnerability in QNAP NAS that enables unauthorized access to sensitive data stored in cookies in plain text.

The Impact of CVE-2018-19941

Exploiting this vulnerability could lead to unauthorized access to confidential information stored within cookies.

Technical Details of CVE-2018-19941

Vulnerability Description

The vulnerability involves cleartext storage of sensitive information in cookies, potentially accessible using specific tools.

Affected Systems and Versions

QTS versions less than 4.5.1.1456 (build 20201031)
QuTS hero versions less than h4.5.1.1472 (build 20201031)
QuTScloud versions less than c4.5.2.1379 (build 20200730)

Exploitation Mechanism

Attackers can exploit this vulnerability to gain unauthorized access to sensitive data stored in cookies.

Mitigation and Prevention

Immediate Steps to Take

Update QTS to version 4.5.1.1456 (build 20201015) or later
Update QuTS hero to version h4.5.1.1472 (build 20201031) or later
Update QuTScloud to version c4.5.2.1379 (build 20200730) or later

Long-Term Security Practices

Regularly monitor for security advisories and updates from QNAP
Implement secure cookie handling practices to mitigate similar vulnerabilities

Patching and Updates

Ensure timely installation of patches and updates provided by QNAP to address this vulnerability.