CVE-2021-3579 Incorrect Default Permissions vulnerability in bdservicehost.exe and Vulnerability.Scan.exe

What is CVE-2021-3579?

CVE-2021-3579 is a high-severity vulnerability in Bitdefender ENdpoint Security Tools for Windows, published on 28 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Incorrect Default Permissions vulnerability in the bdservicehost.exe and Vulnerability.Scan.exe components as used in Bitdefender Endpoint Security Tools for Windows, Total Security allows a local attacker to elevate privileges to NT AUTHORITY\SYSTEM This issue affects: Bitdefender Endpoint Security Tools for Windows versions prior to 7.2.1.65. Bitdefender Total Security versions prior to 7.2.1.65.

Weakness: CWE-276

Which versions are affected by CVE-2021-3579?

It affects 2 products.

Products include Bitdefender Endpoint Security Tools, Bitdefender Total Security.

How do I fix CVE-2021-3579?

No fix has been published for CVE-2021-3579 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-3579 being exploited?

There is no known exploitation of CVE-2021-3579 in the wild and no public exploit code.

Other vulnerabilities in Bitdefender ENdpoint Security Tools for Windows

• CVE-2021-3554 Improper Access Control vulnerability in the patchesUpdate API Critical 9.0
• CVE-2021-3576 Privilege escalation via SeImpersonatePrivilege High 7.8
• CVE-2022-0677 Improper Handling of Length Parameter Inconsistency vulnerability in Bitdefender Update Server (VA-10144) High 7.5
• CVE-2021-3485 Improper Input Validation in Bitdefender Endpoint Security Tools for Linux Medium 6.4
• CVE-2021-3552 Insufficient validation on regular expression in EPPUpdateService config file (VA-9825) Medium 5.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-83r8-pm82-6w92.