关联漏洞
标题：
Linux kernel 安全漏洞
(CVE-2022-34918)
描述：Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。netfilter是一款使用在Linux系统中的数据包过滤框架。 Linux kernel 5.18.9版本及之前版本存在安全漏洞，该漏洞源于。本地攻击者利用该漏洞使用 nft_set_elem_init 中的类型混淆错误（导致缓冲区溢出）来提升权限。
介绍
# CVE-2022-34918 LPE PoC
LPE exploit for CVE-2022-34918.
This exploit has been written for the kernel `Linux ubuntu 5.15.0-39-generic`
You can find the associated write-up on our [blog](https://randorisec.fr/crack-linux-firewall/)
## Usage
`get_root` should be in the current folder
```
$ ls
get_root poc
$ ./poc
```
## License
Copyright 2022, RandoriSec
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
文件快照
[4.0K] /data/pocs/20a4339c8c5d3f470d82948c49cc14198294c549
├── [4.0K] get_root_src
│ └── [ 227] get_root.c
├── [4.0K] inc
│ ├── [1.2K] keyring.h
│ ├── [ 158] log.h
│ ├── [ 163] modprobe.h
│ ├── [1020] netlink.h
│ ├── [ 599] nf_tables.h
│ ├── [ 587] simple_xattr.h
│ ├── [ 700] uring.h
│ └── [ 209] util.h
├── [1.5K] LICENSE.md
├── [ 440] Makefile
├── [1.7K] README.md
└── [4.0K] src
├── [3.5K] keyring.c
├── [4.0K] main.c
├── [2.6K] modprobe.c
├── [3.5K] netlink.c
├── [ 12K] nf_tables.c
├── [1.4K] simple_xattr.c
├── [1.3K] uring.c
└── [1.8K] util.c
3 directories, 20 files
备注
1. 建议优先通过来源进行访问。
2. 如果因为来源失效或无法访问，请发送邮箱到 f.jinxu#gmail.com 索取本地快照（把 # 换成 @）。
3. 神龙已为您对POC代码进行快照，为了长期维护，请考虑为本地POC付费，感谢您的支持。