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CVE-2021-31421

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 存在路径遍历漏洞，攻击者可利用该漏洞删除受影响的Parallels Desktop安装上的任意文件。

AI Predicted 7.8 Difficulty: Hard EPSS 0.40% · P32

Possible ATT&CK Techniques 1 AI

T1070.003 · Clear Command History
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I. Basic Information for CVE-2021-31421

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
This vulnerability allows local attackers to delete arbitrary files on affected installations of Parallels Desktop 16.1.1-49141. An attacker must first obtain the ability to execute high-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 a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to delete arbitrary files in the context of the hypervisor. Was ZDI-CAN-12129.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Corel Parallels Desktop 路径遍历漏洞
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 存在路径遍历漏洞，攻击者可利用该漏洞删除受影响的Parallels Desktop安装上的任意文件。
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 16.1.1-49141 -

II. Public POCs for CVE-2021-31421

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III. Intelligence Information for CVE-2021-31421

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Vendor Advisories for CVE-2021-31421 (1)

Other References for CVE-2021-31421 (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-2021-31420 Corel Parallels Desktop 安全漏洞
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-22

V. Comments for CVE-2021-31421

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