CVE-2023-27326: parallels desktop Path Traversal — Fix

Description

Parallels Desktop Toolgate Directory Traversal Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. 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 escalate privileges and execute arbitrary code in the context of the current user on the host system. . Was ZDI-CAN-18933.

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CVSS v3.1 Score

8.2

HIGH

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Weakness Type (CWE)

CWE-22 Path Traversal

Affected Products

Vendor	Product	Versions
parallels	parallels_desktop	< 18.1.1_\(53328\)

References

Advisories & Patches

https://kb.parallels.com/125013 https://kb.parallels.com/125013

Other References

https://www.zerodayinitiative.com/advisories/ZDI-23-221/ https://www.zerodayinitiative.com/advisories/ZDI-23-221/

Frequently Asked Questions

What is CVE-2023-27326? +

Parallels Desktop Toolgate Directory Traversal Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. 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 escalate privileges and execute arbitrary code in the context of the current user on the host system. . Was ZDI-CAN-18933. It has a CVSS v3.1 base score of 8.2 (HIGH).

How severe is CVE-2023-27326? +

CVE-2023-27326 has a CVSS v3.1 score of 8.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-27326? +

CVE-2023-27326 affects products from parallels, specifically: parallels_desktop. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-27326? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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