![]() If editing before a certificate’s issuance is allowed, a malicious user can set the subject to an administrator account and assign the certificate to them. ![]() One techniques uses certificate request templates. Change settings to avoid certificate abuseĪttackers can use certificates to launch attacks. This is the safest to ensure the password is no longer usable by the golden ticket attack. Another way is to reset the password manually once, wait three days, then reset it again. Unfortunately, this script supports only English operating systems. As the PingCastle points out, a Microsoft script can be run to guarantee the correct replication of these secrets. Change the password for the krbtgt account on a regular basis. The disabled Kerberos account is often overlooked in a domain. Enable the feature using the PowerShell command:Įnable-ADOptionalFeature -Identity 'Recycle Bin Feature' -Scope ForestOrConfigurationSet -Target '' Change Kerberos passwords regularly You’ll need to be on a forest level of at least Server 2008 R2 or higher and then check the level with Get-ADForest. Review whether the AD domain’s recycle bin feature is enabled. These older platforms are often running SMB v1, which allows for weaker protocols. My guess is many of you have that or earlier platforms in your network, probably not patched. Windows Server 2012 R2 drops out of support on October 10, 2023. Identify unsupported operating systemsįirst, I looked for unsupported server operating systems in the domain. Here’s how I analyzed my Active Directory status. I had likely forgotten many older pieces in our network that now threatened its security. I ran PingCastle on a sample domain, and it became obvious that I had a lot of work to do. Several other resources analyze the health and security of Active Directory domains including Purple Knight from Semperis, PingCastle, or Quest’s Active Directory health check tool. Microsoft’s server tools include Best Practices Analyzer (BPA), but it doesn’t identify some of the means that attackers use to go after Active Directory domains. Active Directory security came into the news with the release of several updates in May, you need to take many more steps than mere patching to protect your network. Attackers know that these domains have legacy settings that allow them to take greater control and use techniques to gain domain rights. You probably have accounts that have been unchanged for years and might not have reviewed settings or registry entries. If you have a traditional domain, it’s time to audit your Active Directory.
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