HTTP.sys Denial of Service Vulnerability
CVE-2022-35748

7.5HIGH

Key Information:

Vendor
Microsoft
Status
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Windows Server Version 20h2
Vendor
CVE Published:
31 May 2023

Summary

The HTTP.sys Denial of Service vulnerability allows attackers to exploit the HTTP protocol stack, potentially leading to a service disruption. By sending specially crafted HTTP requests, attackers can overwhelm the server's resources, causing it to become unresponsive. This vulnerability emphasizes the importance of implementing timely security updates and monitoring for unusual traffic patterns to safeguard against potential attacks.

Affected Version(s)

Windows Server 2012 (Server Core installation) x64-based Systems 6.2.9200.0 < 6.2.9200.23817

Windows Server 2012 R2 (Server Core installation) x64-based Systems 6.3.9600.0 < 6.3.9600.20520

Windows Server 2012 R2 x64-based Systems 6.3.9600.0 < 6.3.9600.20520

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.