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CVE-2021-44204— Local privilege escalation via named pipe due to improper access control checks

Quick assessment

Affected
Acronis Acronis Cyber Protect 15
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.

Acronis Cyber​​ Protect等都是新加坡安克诺斯（Acronis）的产品。Acronis Cyber​​ Protect是一款网络保护产品。Acronis True Image是一款著名的数据备份还原软件。Acronis Agent是一个代理软件。 Acronis 多款产品存在安全漏洞，该漏洞源于不适当的访问控制检查，攻击者可以通过命名管道进行本地权限升级。

AI Predicted 7.8 Difficulty: Easy EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-44204

Vulnerability Information
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Vulnerability Title
Local privilege escalation via named pipe due to improper access control checks
Source: CVE Program / CVE List V5
Vulnerability Description
Local privilege escalation via named pipe due to improper access control checks. The following products are affected: Acronis Cyber Protect 15 (Windows) before build 28035, Acronis Agent (Windows) before build 27147, Acronis Cyber Protect Home Office (Windows) before build 39612, Acronis True Image 2021 (Windows) before build 39287
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Acronis 多款产品安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Acronis Cyber​​ Protect等都是新加坡安克诺斯（Acronis）的产品。Acronis Cyber​​ Protect是一款网络保护产品。Acronis True Image是一款著名的数据备份还原软件。Acronis Agent是一个代理软件。 Acronis 多款产品存在安全漏洞，该漏洞源于不适当的访问控制检查，攻击者可以通过命名管道进行本地权限升级。
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
Acronis Acronis Cyber Protect 15 unspecified ~ 28035 -
Acronis Acronis Agent unspecified ~ 27147 -
Acronis Acronis Cyber Protect Home Office unspecified ~ 39612 -
Acronis Acronis True Image 2021 unspecified ~ 39287 -

II. Public POCs for CVE-2021-44204

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III. Intelligence Information for CVE-2021-44204

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Other References for CVE-2021-44204 (1)

Same Patch Batch · Acronis · 2022-02-04 · 6 CVEs total

CVE-2021-44205 Local privilege escalation due to DLL hijacking vulnerability
CVE-2021-44206 Local privilege escalation due to DLL hijacking vulnerability in Acronis Media Builder ser
CVE-2022-24113 Local privilege escalation due to excessive permissions assigned to child processes
CVE-2022-24114 Local privilege escalation due to race condition on application startup
CVE-2022-24115 Local privilege escalation due to unrestricted loading of unsigned libraries

IV. Related Vulnerabilities

Same product: Acronis Cyber Protect 15
Same vendor: Acronis
Same weakness: CWE-285

V. Comments for CVE-2021-44204

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