Author Posts: Yaron Zinar
Security Advisory: Integer Overflow in Active Directory (CVE-2020-1267)
Posted on July 14, 2020 by Yaron Zinar
On July 14, 2020 Patch Tuesday, Microsoft released a patch for CVE-2020-1267, an important vulnerability in the Active Directory (AD)...
Maze Ransomware Analysis and Protection
Posted on May 15, 2020 by Yaron Zinar
Last month, Cognizant, the IT services giant, acknowledged it was a victim of a Maze ransomware attack. Maze ransomware is...
NTLM Reflection Attack? Not for Preempt Customers
Posted on November 13, 2019 by Yaron Zinar
NTLM strikes again! Microsoft released a patch this week, CVE-2019-1384, which addresses a bypass vulnerability that allows attackers to successfully...
Security Advisory: Targeting AD FS With External Brute-Force Attacks
Posted on July 9, 2019 by Yaron Zinar
On July 2019 Patch Tuesday, Microsoft released a patch for CVE-2019-1126, an important vulnerability discovered by Preempt Research Labs. The...
How to Easily Bypass EPA to Compromise any Web Server that Supports Windows Integrated Authentication
Posted on June 11, 2019 by Yaron Zinar
As announced in our recent security advisory, Preempt researchers discovered how to bypass the Enhanced Protection for Authentication (EPA) mechanism...
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