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CVE-2021-3641— Improper Link Resolution Before File Access in Bitdefender GravityZone (VA-9921)

Quick assessment

Affected
Bitdefender GravityZone
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.

Bitdefender Endpoint Security Tool是罗马尼亚比特梵德（Bitdefender）公司的一款终端安全管理工具。 Bitdefender Endpoint Security Tool 存在后置链接漏洞，该漏洞源于网络系统或产品的代码开发过程中存在设计或实现不当的问题。

CVSS 6.1 · Medium EPSS 0.35% · P27

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth
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I. Basic Information for CVE-2021-3641

Vulnerability Information
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Vulnerability Title
Improper Link Resolution Before File Access in Bitdefender GravityZone (VA-9921)
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Link Resolution Before File Access ('Link Following') vulnerability in the EPAG component of Bitdefender Endpoint Security Tools for Windows allows a local attacker to cause a denial of service. This issue affects: Bitdefender GravityZone version 7.1.2.33 and prior versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
Bitdefender Endpoint Security Tool 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bitdefender Endpoint Security Tool是罗马尼亚比特梵德（Bitdefender）公司的一款终端安全管理工具。 Bitdefender Endpoint Security Tool 存在后置链接漏洞，该漏洞源于网络系统或产品的代码开发过程中存在设计或实现不当的问题。
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
Bitdefender GravityZone unspecified ~ 7.1.2.33 -

II. Public POCs for CVE-2021-3641

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III. Intelligence Information for CVE-2021-3641

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Vendor Advisories for CVE-2021-3641 (1)

Other References for CVE-2021-3641 (1)

IV. Related Vulnerabilities

Same product: GravityZone
Same vendor: Bitdefender
Same weakness: CWE-59

V. Comments for CVE-2021-3641

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