CackalackyCon is a 501c3 non-profit that serves as a community partnership to provide a hacker con that promotes open information sharing, education, and community development. Talks are centered around practical and actionable topics and attendance ranges from passionate enthusiasts to students just starting out.


May 17 – May 19, 2024


DoubleTree by Hilton Hotel
Raleigh-Durham, NC 

Join the presentation:

Return to R13? More Like Return to GET REKT: Come Learn Mainframe Buffer Overflows

Phil Young
Director of Mainframe Penetration Testing

Once deemed impossible by mainframe wizards of old, buffer overflows have now been unveiled as within reach. A young mainframe hacker’s discovery of overwriting register 13 unveils the potential to control return addresses. Dive into C and HLASM vulnerabilities, witness live exploit examples, and culminate in a remote code execution on a vulnerable mainframe FTP server. This captivating narrative concludes with a docker container offering a self-taught course on these exploits at CackalackyCon.