While Windows IT professionals deal with security on a daily basis, very few understand the under-the-hood protocol, Kerberos. Kerberos is a security protocol in Windows introduced in Windows 2000 to ...

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A bypass bug present in the Kerberos cryptographic authentication protocol for 21 years has now been fixed in patches from Microsoft, Samba, Fedora, FreeBSD, and Debian. The discoverers of the ancient ...

Two implementations of the Kerberos authentication protocol received patches this week against a vulnerability that allowed a threat actor to bypass authentication procedures. The vulnerability was ...

Yaron Kassner, CTO at Silverfort, discusses authentication-bypass bugs in Cisco ASA, F5 Big-IP, IBM QRadar and Palo Alto Networks PAN-OS. Authentication is the front gate to security systems, so if ...

Yesterday was the second Tuesday of the month and as expected, Microsoft released Patch Tuesday updates on Windows 10 (KB5027215, among others), and Windows 11 (KB5027231). Servers also received Patch ...

The Kerberos protocol is composed of three sub-protocols. The sub-protocol in which the KDC gives the client a logon session key and a TGT (Ticket Granting Ticket) is called the Authentication Service ...

The path to eradicating this ancient protocol and security sinkhole won’t be easy, but the time has come for its complete eradication. Microsoft has hinted at a possible end to NTLM a few times, but ...

Do you think Microsoft’s Kerberos implementation follows the Kerberos standard? Add your comments and questions to the online Kerberos discussion. In Greek mythology , Kerberos is the three-headed ...