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POC详情: a0b408b5fac160bcee2d3931acf6e2692ad6cf99

来源
https://github.com/horizon3ai/proxyshell
关联漏洞
标题:Microsoft Exchange Server 代码问题漏洞 (CVE-2021-34473)
Description:Microsoft Exchange Server是美国微软（Microsoft）公司的一套电子邮件服务程序。它提供邮件存取、储存、转发，语音邮件，邮件过滤筛选等功能。 Microsoft Exchange Server存在代码问题漏洞。以下产品和版本受到影响：Microsoft Exchange Server 2013 Cumulative Update 23,Microsoft Exchange Server 2019 Cumulative Update 9,Microsoft Exchange Se
Description
Proof of Concept for CVE-2021-34473, CVE-2021-34523, and CVE-2021-31207
介绍
# ProxyShell
Proof of Concept Exploit for Microsoft Exchange CVE-2021-34473, CVE-2021-34523, CVE-2021-31207

# Details
For background information and context, read the [blog post](https://www.horizon3.ai/news/blog/proxyshell) detailing the research by Horizon3:
https://www.horizon3.ai/news/blog/proxyshell

## Features
* No email address needs to be supplied
* Attempts to enumerate emails from Active Directory
* Attempts to enumerate LegacyDNs from Active Directory
* Attempts to discover LegacyDNs from builtin emails
* Attempts to discover SID of Exchange server in load-balanced deployments
* Handles exploitation in load-balanced environments

# Usage
```bash
python3 exchange_proxyshell.py -u https://<IP>
```
### Example output
![Proof](poc.png)

# Mitigations
Apply the security updates found here: 
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34473

# Prior Research Credit
- https://devco.re/blog/2021/08/22/a-new-attack-surface-on-MS-exchange-part-3-ProxyShell/
- https://www.zerodayinitiative.com/blog/2021/8/17/from-pwn2own-2021-a-new-attack-surface-on-microsoft-exchange-proxyshell
- https://peterjson.medium.com/reproducing-the-proxyshell-pwn2own-exploit-49743a4ea9a1
- https://github.com/dmaasland/proxyshell-poc

# Disclaimer
This software has been created purely for the purposes of academic research and for the development of effective defensive techniques, and is not intended to be used to attack systems except where explicitly authorized. Project maintainers are not responsible or liable for misuse of the software. Use responsibly.
文件快照

 [4.0K]  /data/pocs/a0b408b5fac160bcee2d3931acf6e2692ad6cf99
├── [ 38K]  exchange_proxyshell.py
├── [123K]  poc.png
└── [1.5K]  README.md

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