Privilege escalation in VMWare ESXi
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-31705 |
| CWE-ID | CWE-787 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
VMware ESXi Operating systems & Components / Operating system |
| Vendor | VMware, Inc |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Out-of-bounds write
EUVDB-ID: #VU70156
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2022-31705
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: Yes
Description The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the USB 2.0 controller (EHCI). A local privileged user on the guest OS can trigger an out-of-bounds write and execute arbitrary code as the virtual machine's VMX process running on the host.
MitigationInstall updates from vendor's website.
Note, on ESXi the exploitation is contained within the VMX sandbox.
Vulnerable software versionsVMware ESXi: 8.0 - ESXi70U3sf-20036586
External linkshttp://www.vmware.com/security/advisories/VMSA-2022-0033.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
