SB2023011101 - Multiple vulnerabilities in Microsoft Windows Secure Socket Tunneling Protocol (SSTP)

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Race condition (CVE-ID: CVE-2023-21535)

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to a race condition in Windows Secure Socket Tunneling Protocol (SSTP). A local user can exploit the race and execute arbitrary code on the target system.

2) Race condition (CVE-ID: CVE-2023-21548)

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to a race condition in Windows Secure Socket Tunneling Protocol (SSTP). A local user can exploit the race and execute arbitrary code on the target system.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21535
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-21548