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CVE-2021-44205— Local privilege escalation due to DLL hijacking vulnerability

Quick assessment

Affected
Acronis Acronis Cyber Protect Home Office
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和Acronis True Image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。该软件为企业提供数据备份、灾难恢复、基于人工智能的恶意软件保护等功能。Acronis True Image是一款著名的数据备份还原软件。该软件可用于创建驱动器和磁盘映像，并在需要干净系统时可以还原镜像。 Acronis Cyber Protect Home Office和Acronis True Image 202

AI Predicted 7.8 Difficulty: Easy EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1055.011 · Extra Window Memory Injection
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I. Basic Information for CVE-2021-44205

Vulnerability Information
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Vulnerability Title
Local privilege escalation due to DLL hijacking vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Local privilege escalation due to DLL hijacking vulnerability. The following products are affected: 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
对搜索路径元素未加控制
Source: CVE Program / CVE List V5
Vulnerability Title
Acronis Cyber​​ Protect和Acronis True Image 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Acronis Cyber​​ Protect和Acronis True Image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。该软件为企业提供数据备份、灾难恢复、基于人工智能的恶意软件保护等功能。Acronis True Image是一款著名的数据备份还原软件。该软件可用于创建驱动器和磁盘映像，并在需要干净系统时可以还原镜像。 Acronis Cyber Protect Home Office和Acronis True Image 202
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 Home Office unspecified ~ 39612 -
Acronis Acronis True Image 2021 unspecified ~ 39287 -

II. Public POCs for CVE-2021-44205

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III. Intelligence Information for CVE-2021-44205

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Other References for CVE-2021-44205 (1)

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

CVE-2021-44204 Local privilege escalation via named pipe due to improper access control checks
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 Home Office
Same vendor: Acronis
Same weakness: CWE-427

V. Comments for CVE-2021-44205

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