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CVE-2023-0386 PoC — Linux kernel 安全漏洞

Source
https://github.com/sxlmnwb/CVE-2023-0386
Associated Vulnerability
Title:Linux kernel 安全漏洞 (CVE-2023-0386)
Description:A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.
Description
Vulnerabilities Exploitation On Ubuntu 22.04
Readme
# Installation
```bash
make all
```
# How to use
Start two terminals and in the first one type
```bash
./fuse ./ovlcap/lower ./gc
```
In the second terminal type
```bash
./exp
```
File Snapshot

 [4.0K]  /data/pocs/8317eba3d299ca871d1f8c3d01409ff32a134b3d
├── [3.0K]  exp.c
├── [5.5K]  fuse.c
├── [ 549]  getshell.c
├── [ 150]  Makefile
├── [4.0K]  ovlcap
├── [ 180]  README.md
└── [4.0K]  test
    ├── [ 10K]  fuse_test.c
    ├── [ 16K]  mnt
    └── [1.5K]  mnt.c

2 directories, 8 files
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