CVE-2022-27626 Explained : Impact and Mitigation

A critical vulnerability has been identified in the session processing functionality of Out-of-Band (OOB) Management in Synology DiskStation Manager (DSM) versions prior to 7.1.1-42962-2. Remote attackers could exploit this flaw to execute arbitrary commands, posing a significant security risk.

Understanding CVE-2022-27626

This section delves into the core details of CVE-2022-27626, shedding light on the vulnerability's implications, affected systems, and exploitation methodology.

What is CVE-2022-27626?

The CVE-2022-27626 vulnerability involves a race condition issue during concurrent execution using shared resources, enabling attackers to execute unauthorized commands remotely. Specifically impacting Synology DSM versions before 7.1.1-42962-2, this flaw demands immediate attention to prevent potential exploitation.

The Impact of CVE-2022-27626

With a CVSS base score of 10 out of 10, CVE-2022-27626 is classified as critical due to its severe implications. Attackers can leverage this vulnerability to achieve high confidentiality, integrity, and availability impacts on the affected systems, culminating in unauthorized command execution and potential system compromise.

Technical Details of CVE-2022-27626

Explore the technical intricacies surrounding CVE-2022-27626 to gain a comprehensive understanding of the vulnerability's nature and associated risks.

Vulnerability Description

The vulnerability stems from improper synchronization in the session processing component of Synology DSM's Out-of-Band (OOB) Management. By exploiting this race condition flaw, remote attackers can execute arbitrary commands through unspecified vectors, necessitating prompt remediation measures.

Affected Systems and Versions

Synology DiskStation Manager (DSM) versions preceding 7.1.1-42962-2 are vulnerable to CVE-2022-27626. Specifically, models such as DS3622xs+, FS3410, and HD6500 are at risk, underscoring the importance of upgrading to the latest secure version promptly.

Exploitation Mechanism

Remote threat actors can capitalize on the vulnerability by leveraging shared resource concurrency issues to execute malicious commands remotely. The absence of proper synchronization mechanisms in OOB Management's session processing facilitates unauthorized command execution, emphasizing the criticality of mitigative actions.

Mitigation and Prevention

This section outlines essential steps to mitigate the risks posed by CVE-2022-27626 and prevent potential security breaches, advocating for immediate remediation and long-term security best practices.

Immediate Steps to Take

To address CVE-2022-27626's risks, users must update their Synology DSM installations to version 7.1.1-42962-2 or later, ensuring the elimination of the vulnerability. Additionally, enforcing stringent access controls and monitoring network activity can bolster security posture against potential exploits.

Long-Term Security Practices

Incorporating robust synchronization mechanisms and conducting regular security audits can fortify systems against vulnerabilities akin to CVE-2022-27626. Implementing security patches promptly, educating users on safe computing practices, and employing intrusion detection systems are pivotal in sustaining a secure IT environment.

Patching and Updates

Regularly applying vendor-supplied patches, particularly security updates addressing critical vulnerabilities like CVE-2022-27626, is imperative. By staying abreast of the latest software patches and security advisories, organizations can proactively thwart potential threats and safeguard their digital assets.