CVE-2021-38923 Missing authorization in PowerVM Hypervisor
A privileged user can access another virtual machine due to duplicate WWPN assignments in the IBM PowerVM Hypervisor.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-38923?
CVE-2021-38923 is a high-severity missing authorization vulnerability in IBM PowerVM Hypervisor, published on 6 Oct 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
IBM PowerVM Hypervisor FW1010 could allow a privileged user to gain access to another VM due to assigning duplicate WWPNs. IBM X-Force ID: 210162.
Which versions are affected by CVE-2021-38923?
It affects 1 product.
Products include Ibm Powervm Hypervisor Firmware.
How do I fix CVE-2021-38923?
No fix has been published for CVE-2021-38923 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2021-38923 being exploited?
There is no known exploitation of CVE-2021-38923 in the wild and no public exploit code.
Sources
Also known as GHSA-6wrx-6f22-3628.