CVE-2021-28805 : What You Need to Know

A vulnerability has been identified in certain QNAP switches running QNAP Switch System (QSS) that could allow attackers to access sensitive information through the source code. This vulnerability, assigned CVE-2021-28805, has a CVSS base score of 7.8, indicating a high severity.

Understanding CVE-2021-28805

This CVE relates to the inclusion of sensitive information in the source code, impacting specific QNAP switches under the QSS. The vulnerability allows malicious actors to gain access to application data.

What is CVE-2021-28805?

CVE-2021-28805 refers to an information exposure vulnerability in QNAP switches running QSS, enabling unauthorized users to read sensitive data stored within the affected systems.

The Impact of CVE-2021-28805

The exploitation of CVE-2021-28805 could lead to the exposure of sensitive information, compromising the confidentiality and integrity of the application data. The severity of this vulnerability is rated as high due to its potential impact on affected systems.

Technical Details of CVE-2021-28805

This section covers specific technical details related to CVE-2021-28805 to provide a deeper understanding of the vulnerability.

Vulnerability Description

The vulnerability arises from the presence of sensitive information in the source code of QSS, which can be leveraged by attackers to access application data.

Affected Systems and Versions

This vulnerability affects QNAP Systems Inc. QSS versions prior to 1.0.3 build 20210505 on QSW-M2108-2C, QSW-M2108-2S, and QSW-M2108R-2C. Additionally, versions prior to 1.0.12 build 20210506 on QSW-M408 are also impacted.

Exploitation Mechanism

The vulnerability can be exploited by unauthorized users or threat actors to read sensitive application data through the source code, potentially leading to data breaches.

Mitigation and Prevention

To address CVE-2021-28805 and enhance the security of affected systems, immediate action and long-term security practices are essential.

Immediate Steps to Take

Upgrade affected QSS versions to the fixed releases provided by QNAP Systems Inc.
Implement access controls and restrict unauthorized access to sensitive areas of the system.
Monitor network activity for any suspicious behavior indicating exploitation attempts.

Long-Term Security Practices

Stay vigilant for security advisories and updates from QNAP Systems Inc. regarding vulnerabilities and patches.
Conduct regular security assessments and audits to identify and remediate potential security gaps.

Patching and Updates

QNAP has released fixes for CVE-2021-28805 in the following versions:

QSW-M2108-2C: QSS 1.0.3 build 20210505 and later
QSW-M2108-2S: QSS 1.0.3 build 20210505 and later
QSW-M2108R-2C: QSS 1.0.3 build 20210505 and later
QSW-M408: QSS 1.0.12 build 20210506 and later