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RODC Key List attack - "User test1 is not allowed to have passwords replicated in RODCs" #1667

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dkjajhqu2h3j opened this issue Dec 20, 2023 · 0 comments
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dkjajhqu2h3j commented Dec 20, 2023

Configuration

impacket version: 0.11.0
Python version: 3.11.6
Target OS: Windows Server 2019 (10.0.17763 N/A Build 17763)

Issue

I am attempting the Kerberos Key List attack against a RODC I have in my lab but I cannot get it to work. As you can see below the target user account test1 is a member of the security group Allowed RODC Password Replication Group but not a member of the security group Denied RODC Password Replication Group, I have the name of the RODC's Kerberos service account and its AES256 key, still the Key List attack fails with "User test1 is not allowed to have passwords replicated in RODCs".

The members of the security groups Allowed RODC Password Replication Group and Denied RODC Password Replication Group are:
Skärmbild 2023-12-20 094145

The values of the attributes msDS-RevealOnDemandGroup and msDS-NeverRevealGroup of the RODC's computer object are:
Skärmbild 2023-12-20 094214

Impacket error using the default attack mode:
Skärmbild 2023-12-20 094242

I get the same error targeting the account test1 directly:
Skärmbild 2023-12-20 100545

Using Rubeus with the parameter "/Keylist" works. I get the NT hash of test1. What can I do to fix this? Thanks!

@dkjajhqu2h3j dkjajhqu2h3j changed the title Kerberos Key List attack - "User test1 is not allowed to have passwords replicated in RODCs" RODC Key List attack - "User test1 is not allowed to have passwords replicated in RODCs" Dec 21, 2023
@gabrielg5 gabrielg5 added the in review This issue or pull request is being analyzed label Jan 4, 2024
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