CVE-2021-31432 Information disclosure in Desktop
Local attackers with high-privileged guest access can disclose sensitive information via an out-of-bounds read in the IDE virtual device, potentially aiding privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-31432?
CVE-2021-31432 is a medium-severity vulnerability in Parallels Parallels Desktop, published on 29 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This vulnerability allows local attackers to disclose sensitive information on affected installations of Parallels Desktop 15.1.5-47309. 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 IDE virtual device. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-13190.
Weakness: CWE-125
Which versions are affected by CVE-2021-31432?
It affects 1 product.
Products include Parallels Parallels Desktop.
How do I fix CVE-2021-31432?
No fix has been published for CVE-2021-31432 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-31432 being exploited?
There is no known exploitation of CVE-2021-31432 in the wild and no public exploit code.
Other vulnerabilities in Parallels Parallels Desktop
Sources
Also known as GHSA-xg8r-6fgf-crxr.