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CVE-2021-3553— Server-Side Request Forgery in EPPUpdateService remote config file (VA-9825)

Quick assessment

Affected
Bitdefender Endpoint Security Tools
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 Tools 存在安全漏洞，该漏洞源于软件的 EPPUpdateService组件中缺少针对服务器端请求伪造的有效检验，这允许攻击者可利用该漏洞使用端点保护中继作为任何远程主机的代理。

CVSS 5.3 · Medium EPSS 1.25% · P68
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I. Basic Information for CVE-2021-3553

Vulnerability Information
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Vulnerability Title
Server-Side Request Forgery in EPPUpdateService remote config file (VA-9825)
Source: CVE Program / CVE List V5
Vulnerability Description
A Server-Side Request Forgery (SSRF) vulnerability in the EPPUpdateService of Bitdefender Endpoint Security Tools allows an attacker to use the Endpoint Protection relay as a proxy for any remote host. This issue affects: Bitdefender Endpoint Security Tools versions prior to 6.6.27.390; versions prior to 7.1.2.33. Bitdefender Unified Endpoint for Linux versions prior to 6.2.21.160. Bitdefender GravityZone versions prior to 6.24.1-1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Bitdefender Endpoint Security Tool 代码问题漏洞
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 Tools 存在安全漏洞，该漏洞源于软件的 EPPUpdateService组件中缺少针对服务器端请求伪造的有效检验，这允许攻击者可利用该漏洞使用端点保护中继作为任何远程主机的代理。
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 unspecified ~ 6.6.27.390 -
Bitdefender Unified Endpoint for Linux unspecified ~ 6.2.21.160 -
Bitdefender GravityZone unspecified ~ 6.24.1-1 -

II. Public POCs for CVE-2021-3553

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III. Intelligence Information for CVE-2021-3553

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Other References for CVE-2021-3553 (1)

Same Patch Batch · Bitdefender · 2021-11-24 · 3 CVEs total

CVE-2021-3554 9.0 CRITICAL Improper Access Control vulnerability in the patchesUpdate API
CVE-2021-3552 5.3 MEDIUM Insufficient validation on regular expression in EPPUpdateService config file (VA-9825)

IV. Related Vulnerabilities

Same product: Endpoint Security Tools
Same vendor: Bitdefender
Same weakness: CWE-918

V. Comments for CVE-2021-3553

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