Local Privilege Escalation in Parallels Desktop from Parallels
CVE-2021-34864

8.8HIGH

Key Information:

Vendor

Parallels

Status
Desktop
Vendor
CVE Published:
25 October 2021

What is CVE-2021-34864?

This vulnerability allows local attackers to escalate their privileges on systems running the affected version of Parallels Desktop. The flaw is located in the WinAppHelper component, where insufficient access control is present. To exploit this issue, an attacker needs to have the ability to execute low-privileged code on the target guest system. By leveraging this vulnerability, the attacker can escalate privileges and execute arbitrary code within the hypervisor's context, potentially compromising the security of the system.

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Affected Version(s)

Desktop 16.1.3 (49160)

References

https://www.zerodayinitiative.com/advisories/ZDI-21-1000/
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Sunjoo Park (grigoritchy)
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