Denial of service in Microsoft HTTP.sys



Published: 2022-08-10 | Updated: 2022-08-16
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-35748
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Windows Server
Operating systems & Components / Operating system

Microsoft IIS
Server applications / Web servers

Vendor Microsoft

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU66329

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-35748

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the HTTP.sys. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2012 - 2022 20H2

Microsoft IIS: 8.5 - 10.0


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-35748

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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