CVE-2023-27328
low-risk
Published 2024-05-03
Parallels Desktop Toolgate XML Injection 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 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 a user-supplied string before using it to construct an XML document. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-19187.
Do I need to act?
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0.23% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10
High
LOCAL
/ HIGH complexity
Affected Products (1)
Affected Vendors
References (4)
Vendor Advisory
https://kb.parallels.com/125013
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-220/
Vendor Advisory
https://kb.parallels.com/125013
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-220/
26
/ 100
low-risk
Severity
20/34 · Moderate
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal