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CVE-2022-4173— Avast and AVG Antivirus for Windows vulnerable to Privilege Escalation

Quick assessment

Affected
NortonLifeLock Avast and AVG Antivirus
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

AVG Technologies AVG Antivirus是捷克AVG Technologies公司的一套杀毒软件。 AVG Technologies AVG Antivirus 22.10之前版本存在安全漏洞，该漏洞源于允许具有文件系统写入权限的攻击者在某些情况下提升其权限。

CVSS 7.3 · High EPSS 0.70% · P52
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I. Basic Information for CVE-2022-4173

Vulnerability Information
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Vulnerability Title
Avast and AVG Antivirus for Windows vulnerable to Privilege Escalation
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
AVG Technologies AVG Antivirus 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AVG Technologies AVG Antivirus是捷克AVG Technologies公司的一套杀毒软件。 AVG Technologies AVG Antivirus 22.10之前版本存在安全漏洞，该漏洞源于允许具有文件系统写入权限的攻击者在某些情况下提升其权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
NortonLifeLock Avast and AVG Antivirus 20.5 ~ 22.9 -

II. Public POCs for CVE-2022-4173

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III. Intelligence Information for CVE-2022-4173

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Vendor Advisories for CVE-2022-4173 (1)

IV. Related Vulnerabilities

Same vendor: NortonLifeLock
Same weakness: CWE-269

V. Comments for CVE-2022-4173

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