CVE-2020-17392: Parallels Desktop prl_hypervisor Untrusted Pointer Dereference Privilege Escalation Vulnerability
First published: Tue Aug 25 2020(Updated: )
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.3-47255. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handler for HOST_IOCTL_SET_KERNEL_SYMBOLS in the prl_hypervisor kext. The issue results from the lack of proper validation of a user-supplied value prior to dereferencing it as a pointer. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel. Was ZDI-CAN-10519.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Parallels Desktop | <16.0.0 | |
| Parallels Desktop |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2020-17392.
What is the title of the vulnerability?
The title of the vulnerability is 'Parallels Desktop prl_hypervisor Untrusted Pointer Dereference Privilege Escalation Vulnerability'.
What is the severity of CVE-2020-17392?
The severity of CVE-2020-17392 is high with a severity value of 8.8.
What software version is affected by CVE-2020-17392?
The affected software version is Parallels Desktop up to version 16.0.0.
How can I fix CVE-2020-17392?
To fix CVE-2020-17392, it is recommended to update to a version of Parallels Desktop that is higher than 16.0.0.
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