35 lines
999 B
Markdown
35 lines
999 B
Markdown
Sumo is a Linux Kernel module that grants root access credentials to any user-space process by PID.
|
|
|
|
# TL;DR
|
|
|
|
*.bashrc*
|
|
```bash
|
|
make # build
|
|
sudo insmod sumo.ko # install
|
|
./whoami # test
|
|
```
|
|
|
|
# How it works
|
|
|
|
In it's `init()` function, *sumo* kernel module creates `/proc/sumo` file and waits for PID to be written. Afterwards, it fetches instance of a `task_struct` [kernel structure](https://medium.com/@boutnaru/linux-kernel-task-struct-829f51d97275) associated with the given PID and modifies its values accordingly.
|
|
|
|
```text
|
|
sumo __ SUdo
|
|
,;.'--'. MOdule
|
|
/"/=,=(
|
|
\( __/
|
|
___/ (____
|
|
.' - - '.
|
|
/ v \
|
|
__/ , | \ '-/'_
|
|
{z, ,__/__,__/\__,_ )__( z}
|
|
\>' ( \_ `--c/
|
|
_.-'\_ , / \_
|
|
( `.______.' '.
|
|
\ , \ ( __ )
|
|
\ )-'-\__/-' | /
|
|
| | / .'
|
|
/ ,) ( \_
|
|
oooO' '--Ooo
|
|
```
|