February 15, 2024 at 04:34PM Microsoft identified a critical vulnerability in Exchange Server disclosed in February as a zero-day threat already being exploited. The flaw (CVE-2024-21410) permits attackers to disclose and relay Windows NT Lan Manager hashes, impersonating legitimate users. Microsoft revised its advisory, flagging the exploit as a zero-day. A cumulative update (CU14) protects … Read more
November 28, 2023 at 05:36AM Researchers have discovered a cyber attack technique called “forced authentication” that can leak a Windows user’s NT LAN Manager (NTLM) tokens. The attack exploits a feature in Microsoft Access that allows users to link to external data sources, and it can be launched by tricking a victim into opening a … Read more
October 14, 2023 at 02:48AM Microsoft plans to eliminate NT LAN Manager (NTLM) in Windows 11, focusing instead on strengthening the Kerberos authentication protocol. New features in Windows 11 include Initial and Pass Through Authentication Using Kerberos (IAKerb) and a local Key Distribution Center (KDC) for Kerberos. NTLM has vulnerabilities that make it susceptible to … Read more
October 13, 2023 at 12:50PM Microsoft has announced that the NTLM authentication protocol will be phased out in Windows 11. Kerberos has replaced NTLM as the default authentication protocol since Windows 2000. Despite being used in older versions, NTLM is still vulnerable to attacks such as relay attacks and pass-the-hash attacks. Microsoft is working on … Read more