High severity · published Oct 28, 2021
CVE-2021-3576
Execution with Unnecessary Privileges vulnerability in Bitdefender Endpoint Security Tools, Total Security allows a local attacker to elevate to 'NT AUTHORITY\System
7.8
CVSS
0.9%
EPSS
No
On KEV
Description
Execution with Unnecessary Privileges vulnerability in Bitdefender Endpoint Security Tools, Total Security allows a local attacker to elevate to 'NT AUTHORITY\System. Impersonation enables the server thread to perform actions on behalf of the client but within the limits of the client's security context. This issue affects: Bitdefender Endpoint Security Tools versions prior to 7.2.1.65. Bitdefender Total Security versions prior to 25.0.26.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ES
Endpoint Security Tools · Bitdefender
before 7.2.1.65 · source: NVD
TS
Total Security · Bitdefender
before 25.0.26 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3576
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3576
Vendor Advisory
https://www.bitdefender.com/support/security-advisories/privilege-escalation-via-seimpersonateprivilege-in-bitdefender-endpoint-security-tools-va-9848/
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1276/
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1376/
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