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Read blog posts from CoreLabs, the research division of Core Security. CoreLabs prides itself on taking a holistic view of information security with a focus on developing solutions to complex, real-world security problems that affect our customers.

09

Dec

Early Release Exploit for MS14-068 Vulnerability (Affecting Kerberos)

A few weeks ago a critical vulnerability (MS14-068) affecting Windows environments was published by Microsoft (credited to Tom Maddock and team). Specifically, the vulnerability affects Kerberos: [The vulnerability will] allow an attacker to elevate unprivileged domain user account privileges to those of the domain…

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12

Nov

Using Core Impact Pro Payloads with Third Party Frameworks

We've released an update to Core Impact Pro that adds a small (but interesting) new feature to one of our most popular modules. Users now have the ability to generate agent payloads that can be customized to specific targets by third party frameworks.…

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25

Sep

Bash Bug, Shellshock, CVE-2014-6271…

We can’t agree on a name, but we can agree it’s a big deal. What is this thing?Many are saying this vulnerability could be bigger than Heartbleed. From my perspective, Heartbleed was a bit more troubling due to the affected component and the massive…

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24

Sep

For Skype and other affected applications: A workaround for "Embarcadero VCL Library Heap Overflow"

I've been thinking about the problems that occur when a new vulnerability appears, and how vendors and users react in these situations. In cases where a vulnerability is found in a specific program, the vendor is responsible for finding a fix and distributing the patched…

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20

Aug

Our Latest Vulnerability Advisory: Delphi and C++ Builder VCL library Buffer Overflow

We've released a new vulnerability advisory. For those who aren’t familiar with Core Security’s advisories, this research is conducted by CoreLabs in an effort to expose security gaps before adversaries find them. Upon discovering a vulnerability, we work with the affected organization and…

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25

Mar

MS14-006: "Microsoft Windows TCP IPv6 Denial of Service Vulnerability"

Hi everyone, I would like to make some comments about the Microsoft MS14-006 update. In the last February Patch Tuesday, Microsoft released a fix for the TCP Windows driver (tcpip.sys). According to the patch bulletin "https://technet.microsoft.com/en-us/security/bulletin/ms14-006" only Windows 8 and Windows 2012 were…

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23

Jan

Introducing Sentinel, a 32-bit Anti-Exploit Tool From CoreLabs

In this blogpost I would like to introduce you to Sentinel, an anti-exploit tool, and share two demos with you. Sentinel is a 32-bit anti-exploit tool that I have been developing for some time which I presented in "Ekoparty" security conference at the end…

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03

Dec

DOWN TO THE CORE: NOVEMBER 2013 IMPACT REPORT

 November efforts were mainly focused on delivering new exploits and updates to existing exploits and modules requested by customers while working on the release of CORE Impact 2014 R1. The main exploits & modules released during November are listed below: Updates for November 2013…

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31

Jul

Looking at OWASP’s 2013 Web Vulnerabilities List - Guest Blog from InfoSec Institute

The following post, is a guest blog from Jonathan Lampe, from InfoSec Institute. The OWASP Top 10 list publicizes the most critical web application security flaws as determined by Open Web Application Security Project (OWASP), a nonprofit, vendor-independent IT security organization formed in…

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25

Jun

The Un-Patched Windows Kernel 0-day

My name is Nicolas Economou  and I’m a specialist member on the Exploit Writing Team here at CORE Labs - specializing in Windows kernel exploitation. Today, I would like to say a few words about a 0-day published a month ago. On Friday, May…

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