SB2022051040 - Multiple vulnerabilities in Microsoft Windows Hyper-V

Description

This security bulletin contains information about 2 vulnerabilities.

1) Race condition (CVE-ID: CVE-2022-22713)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a race condition in Windows Hyper-V. A local user can exploit the race and cause a denial of service condition on the target system.

2) Security features bypass (CVE-ID: CVE-2022-24466)

CWE-ID: CWE-254 - Security Features

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to security feature bypass issue in Windows Hyper-V. An authenticated attacker on the local network can bypass extended ACLs and other Windows security feature checks.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-22713
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-24466