Bitdefender GravityZone Link Following Denial-of-Service Vulnerability [CVE-2021-3641]

CVE number – CVE-2021-3641

This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Bitdefender GravityZone.

An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the Endpoint Agent. By creating a symbolic link, an attacker can abuse the service to overwrite a file.

An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

Bitdefender has issued an update to correct this vulnerability.

More details can be found at:
https://www.bitdefender.com/support/security-advisories/improper-link-resolution-before-file-access-in-bitdefender-endpoint-security-tools-for-windows-va-9921/

Jason Davies

UK based technology professional, with an interest in computer security and telecoms.

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