CVE-2021-4199

La vulnerabilidad de Asignación de Permisos Incorrecta para Recursos Críticos en el componente de gestión de fallos BDReinit.exe utilizado en Bitdefender Total Security, Internet Security, Antivirus Plus, Endpoint Security Tools for Windows permite a un atacante remoto escalar los privilegios locales a SISTEMA. Este problema afecta a: Las versiones de Bitdefender Total Security anteriores a la 26.0.10.45. Las versiones de Bitdefender Internet Security anteriores a la 26.0.10.45. Las versiones de Bitdefender Antivirus Plus anteriores a la 26.0.10.45. Versiones de Bitdefender Endpoint Security Tools for Windows anteriores a la 7.4.3.146

This vulnerability allows local attackers to escalate privileges on affected installations of Bitdefender Total Security. 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 Bitdefender Auxiliary Service. By creating a symbolic link, an attacker can abuse the service to overwrite a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.