In the past few years, data only kernel exploitation has been on the rise, since 2011 abusing and attacking Desktop heap objects, to gain a higher exploit primitives, was seen in many exploits. Moving forward to 2015 the focus has changed to GDI subsystem, and the discovery of the GDI Bitmaps objects, abuse, as well as in 2017 the GDI Palettes object abuse technique was released at DefCon 25, all of these techniques aim to, gain arbitrary/relative kernel memory read/write, to further the exploit chain.
In this talk we will focus on some of the discovered techniques and objects, and how we were able using Type Isolation released in RS4 to mitigate those exploitation techniques.
Saif ElSherei
Ian Kronquist
