From detecting attacks to profiling behavior, Corelight Labs creates new ways to deepen network insight and strengthen enterprise security. We work in close partnership with other innovators at Corelight, and we take pride in the robust, deeply technical capabilities we create.

Latest research

Detecting CVE-2022-30216: Windows Server Service Tampering


In July 2022, Microsoft disclosed a vulnerability in the Windows Server Service that allows an authenticated user to remotely access a local API call on a domain controller, which triggers an NTLM request...

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Detecting CVE-2022-23270 in PPTP


This month, Microsoft announced a vulnerability in PPTP, a part of the VPN remote access services on Windows systems that runs on port 1723/tcp. Through Microsoft’s MAPP program, Corelight Labs reviewed a proof of concept exploit for this...

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Detecting CVE-2022-26937 with Zeek


This month, Microsoft announced a vulnerability in NFS. The exploit lies in how an attacker can force a victim NFS server to request an address from the attacker’s fake NFS server. The address returned will overflow memory on the victim NFS server...

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Another day, another DCE/RPC RCE


CVE-2022-26809 was patched in Microsoft’s previous Patch Tuesday (April 12) and it’s a doozy: remote code execution on affected versions of DCE/RPC hosts. The vulnerability attracted a lot of attention in the security community, both because of its severity but also because it appears to be really hard to trigger...

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Detecting Windows NFS Portmap vulnerabilities


This month, Microsoft announced two vulnerabilities in portmap, which is part of ONC RPC, on Windows systems. This blog will discuss Zeek detection packages for CVE-2022-24491 and CVE-2022-24497 developed by Corelight Labs...

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Detecting CVE-2022-21907, an IIS HTTP Remote Code Execution vulnerability


In January 2022, Microsoft disclosed a remote code execution vulnerability for Internet Information Server (IIS) identified as CVE-2022-21907, which they have subsequently reported as wormable. Through Microsoft, Corelight Labs was able to review a...

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