CVE-2021-34360 : What You Need to Know

A CSRF vulnerability has been reported in QNAP's Proxy Server, affecting devices running specific versions. Remote attackers can exploit this vulnerability to inject malicious code. The issue has already been addressed in later versions of Proxy Server.

Understanding CVE-2021-34360

This section provides insights into the CSRF vulnerability present in QNAP's Proxy Server.

What is CVE-2021-34360?

CVE-2021-34360 refers to a CSRF vulnerability affecting QNAP's Proxy Server, allowing remote attackers to inject malicious code.

The Impact of CVE-2021-34360

The vulnerability poses a medium-severity risk with a CVSS base score of 5.3. Attackers can exploit it via a high attack complexity and network vector, leading to high confidentiality impact.

Technical Details of CVE-2021-34360

This section outlines specific technical details related to CVE-2021-34360.

Vulnerability Description

The vulnerability allows remote attackers to perform CSRF attacks on QNAP devices running vulnerable versions of Proxy Server.

Affected Systems and Versions

Platforms such as QTS 4.5.x, QuTS hero h5.0.0, and QuTScloud c4.5.6 are affected by this CSRF vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability remotely, injecting malicious code into affected QNAP devices running the vulnerable versions of Proxy Server.

Mitigation and Prevention

This section provides guidance on mitigating and preventing the exploitation of CVE-2021-34360.

Immediate Steps to Take

Users are advised to update Proxy Server to the fixed versions: QTS 4.5.x: Proxy Server 1.4.2 (2021/12/30) and later, QuTS hero h5.0.0: Proxy Server 1.4.3 (2022/01/18) and later, and QuTScloud c4.5.6: Proxy Server 1.4.2 (2021/12/30) and later.

Long-Term Security Practices

Implement strong CSRF protection mechanisms and regularly update Proxy Server to the latest secure versions to prevent similar vulnerabilities.

Patching and Updates

Regularly check for security advisories from QNAP and apply patches promptly to ensure the Proxy Server remains protected against CSRF attacks.