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CVE-2021-34864

Quick assessment

Affected
Parallels Desktop
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.

Corel Parallels Desktop是加拿大科亿尔数码科技（Corel）公司的一套适用于macOS平台的虚拟机软件。 Corel Parallels Desktop 存在安全漏洞，该漏洞源于缺乏适当的访问控制。攻击者可利用该漏洞升级权限并在虚拟机监控程序上下文中执行任意代码。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.24% · P13
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I. Basic Information for CVE-2021-34864

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.3 (49160). An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the WinAppHelper component. The issue results from the lack of proper access control. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-13543.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Corel Parallels Desktop 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Corel Parallels Desktop是加拿大科亿尔数码科技（Corel）公司的一套适用于macOS平台的虚拟机软件。 Corel Parallels Desktop 存在安全漏洞，该漏洞源于缺乏适当的访问控制。攻击者可利用该漏洞升级权限并在虚拟机监控程序上下文中执行任意代码。
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
Parallels Desktop 16.1.3 (49160) -

II. Public POCs for CVE-2021-34864

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III. Intelligence Information for CVE-2021-34864

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Vendor Advisories for CVE-2021-34864 (1)

Same Patch Batch · Parallels · 2021-10-25 · 5 CVEs total

CVE-2021-34854 Corel Parallels Desktop 安全漏洞
CVE-2021-34855 Corel Parallels Desktop 信息泄露漏洞
CVE-2021-34856 Corel Parallels Desktop 缓冲区错误漏洞
CVE-2021-34857 Corel Parallels Desktop 缓冲区错误漏洞

IV. Related Vulnerabilities

Same product: Desktop
Same vendor: Parallels
Same weakness: CWE-284

V. Comments for CVE-2021-34864

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