CVE-2023-37243 : Security Advisory and Response

A detailed analysis of CVE-2023-37243 focusing on its impact, technical details, and mitigation steps.

Understanding CVE-2023-37243

This section provides insights into the nature of CVE-2023-37243, its implications, and affected systems.

What is CVE-2023-37243?

The vulnerability in the Atera Agent Package Availability product allows standard users to elevate their privileges by writing a malicious DLL to a specific file that is automatically launched with SYSTEM permissions upon system reboot.

The Impact of CVE-2023-37243

The vulnerability, cataloged as CAPEC-69, enables attackers to target programs with elevated privileges. It possesses a CVSSv3.1 base score of 7.8, indicating a high severity level with significant impact on confidentiality, integrity, and availability.

Technical Details of CVE-2023-37243

Delving into the technical aspects related to the CVE-2023-37243 vulnerability.

Vulnerability Description

The C:\Windows\Temp\Agent.Package.Availability\Agent.Package.Availability.exe file is launched with SYSTEM permissions during system reboots, making it prone to DLL hijacking. This flaw can be exploited by standard users to execute malicious DLLs and gain elevated privileges.

Affected Systems and Versions

The affected product is the Atera Agent Package Availability with versions less than or equal to 0.14.0.0 on the Windows platform.

Exploitation Mechanism

Attackers can abuse the vulnerable file path to inject malicious DLLs, exploit DLL hijacking, and escalate their privileges on compromised systems.

Mitigation and Prevention

Guidelines for immediate response and long-term protection against CVE-2023-37243.

Immediate Steps to Take

Restrict access to the vulnerable directory and file to prevent unauthorized modifications.
Monitor system reboots for any suspicious behavior related to the affected executable.

Long-Term Security Practices

Implement the principle of least privilege to limit user access and reduce the attack surface.
Regularly audit and update file permissions to mitigate DLL hijacking risks.

Patching and Updates

Consult the vendor's security advisory for patches and version updates to address the vulnerability effectively.