Experts Detail New Zero-Click Windows Vulnerability for NTLM Credential Theft
May 10, 2023
Vulnerability / Windows
Cybersecurity researchers have shared details about a now-patched security flaw in Windows MSHTML platform that could be abused to bypass integrity protections on targeted machines. The vulnerability, tracked as CVE-2023-29324 (CVSS score: 6.5), has been described as a security feature bypass. It was addressed by Microsoft as part of its Patch Tuesday updates for May 2023. Akamai security researcher Ben Barnea, who discovered and reported the bug, noted that all Windows versions are affected, but pointed out Microsoft, Exchange servers with the March update omit the vulnerable feature. "An unauthenticated attacker on the internet could use the vulnerability to coerce an Outlook client to connect to an attacker-controlled server," Barnea said in a report shared with The Hacker News. "This results in NTLM credentials theft. It is a zero-click vulnerability, meaning it can be triggered with no user interaction." It's also worth noting that CVE-20...