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CVE-2021-31420

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Corel公司的一套适用于macOS平台的虚拟机软件。 Parallels Desktop 存在安全漏洞，攻击者可利用该漏洞删除受影响的Parallels Desktop执行任意代码。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.44% · P35
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I. Basic Information for CVE-2021-31420

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 16.1.0-48950. 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 Toolgate component. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-12220.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
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Corel公司的一套适用于macOS平台的虚拟机软件。 Parallels Desktop 存在安全漏洞，攻击者可利用该漏洞删除受影响的Parallels Desktop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 16.1.0-48950 -

II. Public POCs for CVE-2021-31420

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III. Intelligence Information for CVE-2021-31420

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Other References for CVE-2021-31420 (1)

Same Patch Batch · Parallels · 2021-04-29 · 16 CVEs total

CVE-2021-31417 Corel Parallels Desktop 缓冲区错误漏洞
CVE-2021-31418 Corel Parallels Desktop 缓冲区错误漏洞
CVE-2021-31419 Corel Parallels Desktop 缓冲区错误漏洞
CVE-2021-31421 Corel Parallels Desktop 路径遍历漏洞
CVE-2021-31422 Corel Parallels Desktop 安全漏洞
CVE-2021-31423 Corel Parallels Desktop 缓冲区错误漏洞
CVE-2021-31424 Corel Parallels Desktop 安全漏洞
CVE-2021-31425 Corel Parallels Desktop 输入验证错误漏洞
CVE-2021-31426 Corel Parallels Desktop 输入验证错误漏洞
CVE-2021-31427 Corel Parallels Desktop 安全漏洞
CVE-2021-31428 Corel Parallels Desktop 安全漏洞
CVE-2021-31429 Corel Parallels Desktop 安全漏洞
CVE-2021-31430 Corel Parallels Desktop 缓冲区错误漏洞
CVE-2021-31431 Corel Parallels Desktop 缓冲区错误漏洞
CVE-2021-31432 Corel Parallels Desktop 缓冲区错误漏洞

IV. Related Vulnerabilities

Same product: Desktop
Same vendor: Parallels
Same weakness: CWE-121

V. Comments for CVE-2021-31420

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