A vulnerability has been found in Bitdefender Antivirus Free 2020 that could allow an attacker to load unsigned code that could lead to privilege escalation.

Safebreach reported the main issue with the product is the code integrity guard mechanism is not enforced allowing an attacker to load unsigned code. The danger here is particularly high because the software runs as a NT AUTHORITY\SYSTEM, the most privileged user account making such access highly valuable to an unauthorized person.

“The vulnerability gives attackers the ability to load and execute malicious payloads using a signed service. This ability might be abused by an attacker, for example to achieve Application Whitelisting Bypass for purposes such as execution and evasion,” Safebreach wrote.

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