Attacking the heart of an OpenRG modem

Note: the original post was written in 2017 when there weren’t many posts discussing direct attacks to firmware flash. It also took a while to get in touch with the ISP to give them a chance to fix some of the issues described (in particular the ACS access) and then it was left in draft mode until today. I just made a quick revision and fixed quite a few dead links....

October 20, 2023 · 28 min · 5927 words

BadXNU, a rotten apple! – CodeBlue 2014, SyScan 2015 slides and source code

The last SyScan is almost here so it’s time to get again into a plane and travel to Singapore. This means that the slides and source code can finally be released. Below you can find the archive with both presentations slides (they are slightly different, SyScan version fixes/upgrades a few things) and full source code for both rootkit/kext loaders. I hope you enjoy them; they are quite fun techniques, in particular the second one which now I sort of regret to disclose because it’s so cool....

March 19, 2015 · 2 min · 214 words