Privilege escalation in ESET products for Windows

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU60263

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-37852

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions within the use of named pipes, which leads to security restrictions bypass and privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

NOD32: - - 15.0.18.0

ESET Internet Security: - - 15.0.18.0

ESET Smart Security: - - 15.0.18.0

ESET Smart Security Premium: - - 15.0.18.0

ESET Endpoint Antivirus for Windows: - - 9.0.2032.4

ESET Endpoint Security for Windows: - - 9.0.2032.4

ESET Server Security for Microsoft Windows Server: 8.0.12003.0 - 8.0.12003.1

ESET File Security for Microsoft Windows Server: - - 7.3.12006.0

ESET Security for Microsoft SharePoint Server: - - 8.0.15004.0

ESET Mail Security for IBM Domino: - - 8.0.14004.0

ESET Mail Security for Microsoft Exchange Server: - - 8.0.10016.0

CPE2.3

• cpe:2.3:a:eset:nod32:*:*:*:*:*:*:*:*
• cpe:2.3:a:eset:nod32:10.0.337.1:*:*:*:*:*:*:*
• cpe:2.3:a:eset:nod32:15.0.18.0:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_internet_security:*:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_internet_security:10.0.337.1:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_internet_security:15.0.18.0:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_smart_security:*:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_smart_security:10.0.337.1:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_smart_security:15.0.18.0:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_smart_security_premium:*:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_endpoint_antivirus_for_windows:*:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_endpoint_security_for_windows:*:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_server_security_for_microsoft_windows_server:8.0.12003.0:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_file_security_for_microsoft_windows_server:*:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_security_for_microsoft_sharepoint_server:*:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_mail_security_for_ibm_domino:*:*:*:*:*:*:*:*
• cpe:2.3:a:eset:eset_mail_security_for_microsoft_exchange_server:*:*:*:*:*:*:*:*

External links

https://www.zerodayinitiative.com/advisories/ZDI-22-148/
https://support.eset.com/en/ca8223-local-privilege-escalation-vulnerability-fixed-in-eset-products-for-windows

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.