Multiple vulnerabilities in Microsoft Windows Cryptographic Services



| Updated: 2024-10-11
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2024-29050
CVE-2024-26228
CWE-ID CWE-20
CWE-254
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU88342

Risk: High

CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2024-29050

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

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

The vulnerability exists due to numeric truncation error in Windows Cryptographic Services. A remote attacker can pass specially crafted input to the application and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 11 23H2 10.0.22631.2428

Windows Server: 2008 - 2022 23H2

CPE2.3 External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-29050


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Security features bypass

EUVDB-ID: #VU88343

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-26228

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to security features bypass in the Windows Cryptographic Services. A local user can bypass RSA signature verification on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 11 23H2 10.0.22631.2428

Windows Server: 2008 - 2022 23H2

CPE2.3 External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-26228


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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