Deploying a security solution like Specops Password Policy enhances the protection of passwords, which are frequently exploited as an initial entry point by attackers.
In this attack, the perpetrator, typically using a compromised low-level account with legitimate access, requests service tickets for accounts with SPNs. These tickets are encrypted with the service account's password.
The attacker then tries to crack the password offline by brute-forcing the encryption of the obtained service ticket, not the TGT. Strong, complex passwords are vital in defending against Kerberoasting attacks.
Implementing robust password policies, and monitoring for unusual service ticket requests can significantly reduce the risk.
Tools like Specops Password Auditor are beneficial as they enable scanning and detection of weak passwords within AD, including those found in breached password lists.
Additional measures like using longer and more complex passwords for service accounts, enabling AES encryption for Kerberos, and minimizing the number of service accounts with SPNs can further bolster security against such attacks.
Like other brute-force attacks, password spraying plays the volume game.
Attackers, manually or through automation tools, try the most common passwords on various user accounts throughout an organization, hoping to find a username-password match.
A third-party password solution that can enforce longer passwords, and block the use of high-probability passwords, is the best approach.
One common scenario is the scripting of new user accounts, which often results in users having the same default password.
Another scenario is when users have multiple accounts, such as an admin and a regular user account, and they opt for using the same password to avoid the hassle of remembering multiple passwords.
To mitigate this issue, Specops Password Auditor can identify users with the same password in AD, enabling organizations to address security gaps caused by default credentials.
Attackers will either exploit a system vulnerability, steal user credentials, or guess the passwords of privileged accounts to get higher permissions.
Preventing these devastating attacks requires robust enforcement of password policies, particularly for privileged users.
Specops Password Policy enhances security controls in AD by enforcing strong password policies.
One of its key features is Breached Password Protection, which blocks over 4 billion known compromised passwords from being used.
This helps mitigate the risks associated with password attacks and password reuse.
To further assess the security of your AD you can download Specops Password Auditor, a free read only reporting tool that scans your AD for over 950 million compromised passwords, blank passwords, identical passwords, and other password-related vulnerabilities.
Your end-users are reusing passwords - that's a big problem.
Over 40,000 admin portal accounts use 'admin' as a password.
This Cyber News was published on www.bleepingcomputer.com. Publication date: Thu, 14 Dec 2023 16:25:15 +0000