Vulnerability identifier: #VU94063
Vulnerability risk: Medium
CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]
CVE-ID: CVE-2024-3596
CWE-ID:
CWE-327
Exploitation vector: Network
Exploit availability: Yes
Vulnerable software:
Windows
Operating systems & Components /
Operating system
Windows Server
Operating systems & Components /
Operating system
Vendor: Microsoft
Description
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to use of a broken or risky cryptographic algorithm in RADIUS Protocol. A remote user can perform a man-in-the-middle (MitM) attack and gain access to target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Windows: before 10 21H2, 10 22H2, 10 1507, 10 1607, 10 1809, 11 21H2, 11 22H2, 11 23H2, 10 21H2, 10 21H2, 10 21H2, 10 21H2, 10 21H2, 10 21H2, 10 21H2, 10 21H2
Windows Server: before 2008 R2, 2008, 2012 R2, 2012, 2016, 2022, 2008 R2, 2008 R2, 2008 R2, 2008 R2
External links
https://datatracker.ietf.org/doc/html/rfc2865
https://datatracker.ietf.org/doc/draft-ietf-radext-deprecating-radius/
https://networkradius.com/assets/pdf/radius_and_md5_collisions.pdf
https://www.blastradius.fail/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user 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.