#VU73226 Path traversal in Parallels Desktop - CVE-2023-27326

Vulnerability identifier: #VU73226

Vulnerability risk: Low

CVSSv4.0: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2023-27326

CWE-ID: CWE-22

Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
Parallels Desktop
Operating systems & Components / Operating system package or component

Vendor: Parallels

Description

The vulnerability allows a local user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences within the Toolgate component. A local administrator can send a specially crafted HTTP request and execute arbitrary code with elevated privileges.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Parallels Desktop: before 18.1.1

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External links
https://www.zerodayinitiative.com/advisories/ZDI-23-221/
https://kb.parallels.com/125013

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.