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CVE-2021-3579— Incorrect Default Permissions vulnerability in bdservicehost.exe and Vulnerability.Scan.exe

Quick assessment

Affected
Bitdefender ENdpoint Security Tools for Windows
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 存在安全漏洞，该漏洞源于错误的默认权限漏洞bdservicehost.exe和Vulnerability.Scan.exe组件作为Windows用于Bitdefender端点安全工具,总安全允许本地攻击者可利用该漏洞提升特权NT AUTHORITY) 系统这个问题影响:Bitdefender端点安

CVSS 7.8 · High EPSS 0.72% · P51

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-3579

Vulnerability Information
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Vulnerability Title
Incorrect Default Permissions vulnerability in bdservicehost.exe and Vulnerability.Scan.exe
Source: CVE Program / CVE List V5
Vulnerability Description
Incorrect Default Permissions vulnerability in the bdservicehost.exe and Vulnerability.Scan.exe components as used in Bitdefender Endpoint Security Tools for Windows, Total Security allows a local attacker to elevate privileges to NT AUTHORITY\SYSTEM This issue affects: Bitdefender Endpoint Security Tools for Windows versions prior to 7.2.1.65. Bitdefender Total Security versions prior to 7.2.1.65.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Bitdefender Endpoint Security Tool 安全漏洞
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 存在安全漏洞，该漏洞源于错误的默认权限漏洞bdservicehost.exe和Vulnerability.Scan.exe组件作为Windows用于Bitdefender端点安全工具,总安全允许本地攻击者可利用该漏洞提升特权NT AUTHORITY) 系统这个问题影响:Bitdefender端点安
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 ENdpoint Security Tools for Windows unspecified ~ 7.2.1.65 -
Bitdefender Total Security unspecified ~ 7.2.1.65 -

II. Public POCs for CVE-2021-3579

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III. Intelligence Information for CVE-2021-3579

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Other References for CVE-2021-3579 (1)

Same Patch Batch · Bitdefender · 2021-10-28 · 3 CVEs total

CVE-2021-3576 7.8 HIGH Privilege escalation via SeImpersonatePrivilege
CVE-2021-3823 7.1 HIGH Path traversal vulnerability in Bitdefender GravitZone Update Server in relay mode

IV. Related Vulnerabilities

Same product: ENdpoint Security Tools for Windows
Same vendor: Bitdefender
Same weakness: CWE-276

V. Comments for CVE-2021-3579

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