NTLM
Microsoft patches Windows zero-day exploited in attacks on Ukraine
Suspected Russian hackers were caught exploiting a recently patched Windows vulnerability as a zero-day in ongoing attacks targeting Ukrainian entities. The security flaw (CVE-2024-43451) is an NTLM Hash Disclosure spoofing vulnerability reported by ClearSky security researchers, which can be exploited to steal the logged-in user’s NTLMv2 hash by forcing connections to a remote attacker-controlled server. […]
New Windows Themes zero-day gets free, unofficial patches
Free unofficial patches are now available for a new Windows Themes zero-day vulnerability that allows attackers to steal a target’s NTLM credentials remotely. NTLM has been extensively exploited in NTLM relay attacks, where threat actors force vulnerable network devices to authenticate against servers under their control, and pass-the-hash attacks, where they exploit system vulnerabilities or deploy malicious […]
Exploit released for new Windows Server “WinReg” NTLM Relay attack
Proof-of-concept exploit code is now public for a vulnerability in Microsoft’s Remote Registry client that could be used to take control of a Windows domain by downgrading the security of the authentication process. The vulnerability is tracked as CVE-2024-43532 and takes advantage of a fallback mechanism in the Windows Registry (WinReg) client implementation that relies on old transport protocols […]
Microsoft discloses unpatched Office flaw that exposes NTLM hashes
Microsoft has disclosed a high-severity vulnerability affecting Office 2016 that could expose NTLM hashes to a remote attacker. Tracked as CVE-2024-38200, this security flaw is caused by an information disclosure weakness that enables unauthorized actors to access protected information. It impacts multiple 32-bit and 64-bit Office versions, including Office 2016, Office 2019, Office LTSC 2021, and […]