In November of last year, I took the OffSec EXP-401 Advanced Windows Exploitation class (AWE) at Black Hat MEA. While most of the blog posts out of there focus on providing an OSEE exam review, this blog post aims to be a day-by-day review of the AWE course content. OffSec Exp-401 (AWE) During the first […] The post OffSec EXP-401 Advanced Windows Exploitation (AWE) – Course Review appeared first on VoidSec.| VoidSec
Recently, a threat actor (TA) known as SpyBot posted a tool, on a Russian hacking forum, that can terminate any antivirus/Endpoint Detection & Response (EDR/XDR) software. IMHO, all the hype behind this announcement was utterly unjustified as it is just another instance of the well-known Bring Your Own Vulnerable Driver (BYOVD) attack technique: where a […] The post Reverse Engineering Terminator aka Zemana AntiMalware/AntiLogger Driver appeared first on VoidSec.| VoidSec
In July 2022, I took the SANS SEC 760 class in Berlin. I always promised myself and some close friends to write a review, but I didn’t have the time until the Christmas break. This blog post aims to be a day-by-day review of the SANS SEC760 course content and its CTF, NetWars tournament and […] The post SANS SEC760: Advanced Exploit Development for Penetration Testers – Review appeared first on VoidSec.| VoidSec
As the last post of the year, I decided to do something chill and a bit “off-topic” from my usual content. As the festivities are approaching, I have a bit more free time to dedicate to different stuff, like helping some friends with CTFs and such. I’ve decided to post about this specific challenge because […] The post Naughty List Challenge Write-Up – X-MAS CTF appeared first on VoidSec.| VoidSec
Last month, during Ekoparty, Blue Frost Security published a Windows challenge. Since having a Windows exploitation challenge, is one of a kind in CTFs, and since I’ve found the challenge interesting and very clever, I’ve decided to post about my reverse engineering and exploitation methodology. Challenge Requests Only Python solutions without external libraries will be […] The post Windows Exploitation Challenge – Blue Frost Security 2022 (Ekoparty) appeared first on VoidSec.| VoidSec
In case you’re wondering why I’m not posting as regularly as before, with the new year, I’ve finally transitioned into a fully offensive vulnerability research and exploit development role at Exodus Intelligence that fulfilled my career dream (BTW, we’re currently hiring). In the last couple of months, I’ve worked on some exciting and challenging bugs. […] The post Browser Exploitation: Firefox Integer Overflow – CVE-2011-2371 appeared first on VoidSec.| VoidSec
This blog post serves as an advisory for a couple of MSI’s products that are affected by multiple high-severity vulnerabilities in the driver components they are shipped with. All the vulnerabilities are triggered by sending specific IOCTL requests and will allow to: Directly interact with physical memory via the MmMapIoSpace function call, mapping physical memory […] The post Merry Hackmas: multiple vulnerabilities in MSI’s products appeared first on VoidSec.| VoidSec
As part of my continuous security research journey, during this year I’ve spent a good amount of time reverse-engineering Windows drivers and exploiting kernel-mode related vulnerabilities. While in the past there were (as far as I know), at least two good IDA plugins aiding in the reverse engineering process: DriverBuddy of NCC Group. win_driver_plugin of […] The post Driver Buddy Reloaded appeared first on VoidSec.| VoidSec
Crucial's Ballistix MOD Utility v.<= 2.0.2.5 is affected by multiple Privilege Escalation (LPE) vulnerabilities in the MODAPI.sys driver.| VoidSec
Methodology for reverse engineering Windows drivers, finding vulnerabilities and understanding their exploitability.| VoidSec