CVE-2020-1472 PoC — Netlogon Elevation of Privilege Vulnerability

Title:Netlogon Elevation of Privilege Vulnerability (CVE-2020-1472)
Description:An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network. To exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access. Microsoft is addressing the vulnerability in a phased two-part rollout. These updates address the vulnerability by modifying how Netlogon handles the usage of Netlogon secure channels. For guidelines on how to manage the changes required for this vulnerability and more information on the phased rollout, see How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472 (updated September 28, 2020). When the second phase of Windows updates become available in Q1 2021, customers will be notified via a revision to this security vulnerability. If you wish to be notified when these updates are released, we recommend that you register for the security notifications mailer to be alerted of content changes to this advisory. See Microsoft Technical Security Notifications.

# CVE-2020-1472 POC
Requires the latest impacket from [GitHub](https://github.com/SecureAuthCorp/impacket) with added netlogon structures. 

Do note that by default this changes the password of the domain controller account. Yes this allows you to DCSync, but it also breaks communication with other domain controllers, so be careful with this!

Link to the original research [https://www.secura.com/blog/zero-logon)](https://www.secura.com/blog/zero-logon)

## Installing
Only works on **Python 3.6 and newer**! If your OS comes installed with impacket (such as Kali), make sure to remove all existing installations first. If you still get import errors after this, run it from a *virtualenv* or *pipenv*. 

## Exploit steps
- Read the blog/whitepaper above so you know what you're doing
- Run `cve-2020-1472-full-exploit.py` with IP and netbios name of DC
- DCSync with secretsdump, using `-just-dc` and `-no-pass` or empty hashes and the `DCHOSTNAME$` account

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 [4.0K]  /data/pocs/ed8e8c7d86fac0f07818731618de6e3c3d5bc4e6
├── [4.9K]  cve-2020-1472-full-exploit.py
└── [1.1K]  README.md

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