Vulnerability CVE-2021-37851

Vulnerability Name:

CVE-2021-37851 (CCN-226346)

Assigned:

2021-08-02

Published:

2022-05-09

Updated:

2022-05-19

Summary:

Local privilege escalation in Windows products of ESET allows user who is logged into the system to exploit repair feature of the installer to run malicious code with higher privileges. This issue affects: ESET, spol. s r.o. ESET NOD32 Antivirus 11.2 versions prior to 15.1.12.0. ESET, spol. s r.o. ESET Internet Security 11.2 versions prior to 15.1.12.0. ESET, spol. s r.o. ESET Smart Security Premium 11.2 versions prior to 15.1.12.0. ESET, spol. s r.o. ESET Endpoint Antivirus 6.0 versions prior to 9.0.2046.0; 6.0 versions prior to 8.1.2050.0; 6.0 versions prior to 8.0.2053.0. ESET, spol. s r.o. ESET Endpoint Security 6.0 versions prior to 9.0.2046.0; 6.0 versions prior to 8.1.2050.0; 6.0 versions prior to 8.0.2053.0. ESET, spol. s r.o. ESET Server Security for Microsoft Windows Server 8.0 versions prior to 9.0.12012.0. ESET, spol. s r.o. ESET File Security for Microsoft Windows Server 8.0.12013.0. ESET, spol. s r.o. ESET Mail Security for Microsoft Exchange Server 6.0 versions prior to 8.0.10020.0. ESET, spol. s r.o. ESET Mail Security for IBM Domino 6.0 versions prior to 8.0.14011.0. ESET, spol. s r.o. ESET Security for Microsoft SharePoint Server 6.0 versions prior to 8.0.15009.0.

CVSS v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

7.3 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)
6.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-755

Vulnerability Consequences:

Gain Privileges

References:

Source: MITRE
Type: CNA
CVE-2021-37851

Source: XF
Type: UNKNOWN
eset-cve202137851-priv-esc(226346)

Source: MISC
Type: Vendor Advisory
https://support.eset.com/en/ca8268

Source: CCN
Type: ESET Customer Advisory 2022-0009
Local privilege escalation vulnerabilities in installers for ESET products for Windows fixed

Vulnerable Configuration:

Configuration 1:

cpe:/a:eset:smart_security:*:*:*:*:premium:windows:*:* (Version >= 11.2 and < 15.1.12.0)

OR cpe:/a:eset:internet_security:*:*:*:*:*:windows:*:* (Version >= 11.2 and < 15.1.12.0)

OR cpe:/a:eset:nod32_antivirus:*:*:*:*:*:windows:*:* (Version >= 11.2 and < 15.1.12.0)

OR cpe:/a:eset:endpoint_antivirus:*:*:*:*:*:windows:*:* (Version >= 9.0 and < 9.0.2046.0)

OR cpe:/a:eset:endpoint_antivirus:*:*:*:*:*:windows:*:* (Version >= 8.1 and < 8.1.2050.0)

OR cpe:/a:eset:endpoint_antivirus:*:*:*:*:*:windows:*:* (Version >= 6.0 and < 8.0.2053.0)

OR cpe:/a:eset:endpoint_security:*:*:*:*:*:windows:*:* (Version >= 9.0 and < 9.0.2046.0)

OR cpe:/a:eset:endpoint_security:*:*:*:*:*:windows:*:* (Version >= 8.1 and < 8.1.2050.0)

OR cpe:/a:eset:endpoint_security:*:*:*:*:*:windows:*:* (Version >= 6.0 and < 8.0.2053.0)

OR cpe:/a:eset:security:*:*:*:*:*:sharepoint_server:*:* (Version >= 6.0 and < 8.0.15009.0)

OR cpe:/a:eset:server_security:*:*:*:*:*:windows_server:*:* (Version >= 8.0 and < 9.0.12012.0)

OR cpe:/a:eset:file_security:*:*:*:*:*:windows_server:*:* (Version >= 6.0 and < 8.0.12013.0)

OR cpe:/a:eset:mail_security:*:*:*:*:*:exchange_server:*:* (Version >= 6.0 and < 8.0.10020.0)

OR cpe:/a:eset:mail_security:*:*:*:*:*:domino:*:* (Version >= 6.0 and < 8.0.14011.0)

OR cpe:/a:eset:server_security:*:*:*:*:*:azure:*:* (Version >= 6.0

Configuration CCN 1:

cpe:/a:eset:nod32_antivirus:-:*:*:*:*:*:*:*

OR cpe:/a:eset:smart_security:-:*:*:*:premium:*:*:*

OR cpe:/a:eset:internet_security:-:*:*:*:*:*:*:*

OR cpe:/a:eset:endpoint_security:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

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