ExploitGSM

Exploit for 6.4 - 6.5 kernels and another exploit for 5.15 - 6.5

Telegram for contact -> https://t.me/YuriiCrimson
Telegram chat -> https://t.me/itcrowdua

In winter I found two vulnerabilities in the n_gsm driver. After that Jammes wrote to me offering to buy them from me. As you understood, he deceived me. But I didn't yet know that the first exploit for 6.4 and 6.5 had been leaked. That's why three days ago I leaked it, not knowing it had already been leaked. And on Twitter I saw this https://jmpeax.dev/The-tale-of-a-GSM-Kernel-LPE.html. This bastard stole my work and passed it off as his own. Here you can see https://t.me/itcrowdua/1/203010 a video of our correspondence as proof that I'm not lying. And now I've leaked another exploit that affects 5.15 versions up to 6.5; beyond that, the driver can only be used with CAP_NET_ADMIN privileges. To get ahead of that scum.

First exploit 5.15 to 6.5 Result
Debian 12 6.1 kernel Desktop

The exploit doesn't work on all kernels, for example on Ubuntu. But on Debian and Fedora it works.

Second exploit 6.4 to 6.5 Result

Ubuntu 22.04 6.5 kernel Desktop

Compile

sudo apt-get install libcap-dev
#if not already installed

mkdir build

cd build

cmake ../ExploitGSM

cmake --build .

ExploitGSM_5_15_to_6_1 first exploit
ExploitGSM_6_5 - second exploit.
OffsetGenerator - offset generator.
writeup.docx - reading material on how the exploit works.