SB2022091363 - Remote code execution in Microsoft SPNEGO Extended Negotiation (NEGOEX) Security Mechanism

Description

This security bulletin contains information about 1 security vulnerability.

1) Buffer overflow (CVE-ID: CVE-2022-37958)

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

The vulnerability exists due to a boundary error within the SPNEGO Extended Negotiation (NEGOEX) Security Mechanism implementation. A remote non-authenticated attacker can send a specially crafted request to any application that is using NEGOEX authentication protocol, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of the vulnerable system.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-37958
• https://twitter.com/chompie1337/status/1602757336908660736