By Ben Reardon, Corelight Security Researcher This month’s Microsoft Patch Tuesday included a severe Remote Code Execution vulnerability in the way that Windows TCP/IP handles IPv6 “Router Advertisement” ICMP messages. Due to the severity and wide ... Read more »
Zeek
Community ID support for Wireshark
By Christian Kreibich, Principal Engineer, Corelight The past few weeks have seen several developments around Community ID, our open standard for rendering network traffic flow tuples into a concise textual representation. I’d like to summarize t ... Read more »
Give me my stats!
By Keith J. Jones, Corelight Sr. Security Researcher I often develop packages for Zeek in cluster mode. In this configuration, it can be difficult to debug your package because it is a continually running environment with real, and often ... Read more »
Detecting Zerologon (CVE-2020-1472) with Zeek
By Yacin Nadji, Corelight Security Researcher CVE-2020-1472 aka Zerologon, disclosed by Tom Tervoort of Secura, is an illustrative case study of how a small implementation mistake in cryptographic routines cascades into a privilege escalation ... Read more »
Meet the Corelight CTF tournament winners
By John Gamble, Director of Product Marketing, Corelight This summer, Corelight hosted a virtual CTF tournament where hundreds of players raced to solve security challenges using Zeek data in Splunk and Elastic. After the preliminary rounds, ... Read more »