Kerberoasting Piergiorgio Venuti

Kerberoasting: a threat to cybersecurity and how to mitigate it with Security Posture analysis

Estimated reading time: 5 minutes

Introduction

Cyber security is a crucial aspect for companies and organizations of all sizes. One of the most insidious attacks in the IT security landscape is Kerberoasting. This type of attack exploits weaknesses in the Kerberos protocol, used to authenticate users in network systems. In this article, we will explore in detail this threat, its consequences and how to mitigate it through Security Posture analysis. Additionally, we will discuss how Secure Online Desktop’s Security Posture Analysis service can help protect your organization from this type of attack.

What is Kerberoasting?

The Kerberos protocol

To understand Kerberoasting, it is important to first understand the Kerberos protocol. Kerberos is a ticket-based authentication protocol that is used in operating systems such as Windows and Linux to ensure the identity of users and resources on a network. The protocol was developed by MIT (Massachusetts Institute of Technology) in the 1980s and is based on the “trusted third party” principle, in which an authentication server (Key Distribution Center or KDC) acts as an intermediary between users and Network resources.

The Kerberoasting attack

Kerberoasting is an attack technique that exploits weaknesses in the Kerberos protocol to capture user credentials and access protected resources within a network. Attackers use this method to extract encrypted passwords of services associated with user accounts in the domain and then attempt to crack these passwords offline. Once the password is cracked, the attacker can use it to access protected resources and further compromise the network.

Security Posture Analysis to mitigate the risk of Kerberoasting

Security Posture analysis is a practice that consists of evaluating and monitoring the overall security of a network or organization. Through Security Posture analysis, it is possible to identify weaknesses and vulnerabilities that could be exploited by attackers, as in the case of Kerberoasting. Below, we will look at some key steps to mitigate the risk of Kerberoasting through Security Posture analysis.

Identification of vulnerabilities

The first step to protecting your network from Kerberoasting is to identify vulnerabilities in your system. This will include reviewing Kerberos protocol configurations, verifying service accounts, and analyzing passwords used. It is critical to identify areas where Kerberoasting attacks may occur and work to correct these weaknesses.

Implementation of security measures

Once vulnerabilities have been identified, you need to implement security measures to protect your network. This could include using strong and long passwords for service accounts, updating Kerberos protocol configurations, and implementing attack detection and monitoring solutions.

Attack monitoring and detection

Continuous monitoring of your network environment is critical to detecting and preventing Kerberoasting attacks. It is important to use security solutions that offer advanced threat detection and user behavior monitoring capabilities. This will allow you to quickly identify any attack attempts and take appropriate measures to mitigate the risk.

The Secure Online Desktop Security Posture analysis service

La Secure Online Desktop offers a Security Posture analysis service that can help protect your organization from Kerberoasting and other cybersecurity threats. This service provides a comprehensive analysis of your network, identifying vulnerabilities and making recommendations on how to improve overall security. Below are some of the benefits of using Secure Online Desktop’s Security Posture analysis service:

Dedicated security experts

Secure Online Desktop’s Security Posture Analysis service provides a team of security experts who will work closely with you to identify and fix vulnerabilities in your system. These professionals have extensive experience in protecting corporate networks and can provide targeted advice and customized solutions for your organization.

Comprehensive safety assessment

Secure Online Desktop’s Security Posture Analysis service offers a comprehensive assessment of the security of your network environment. This includes identifying vulnerabilities related to the Kerberos protocol, analyzing security configurations and reviewing access and control policies. Additionally, the service can also evaluate other critical areas of cybersecurity, such as data protection, application security and access management.

Proactive monitoring and detection

Secure Online Desktop’s Security Posture Analysis service provides proactive threat monitoring and detection, allowing you to quickly identify Kerberoasting attack attempts and other security threats. This proactive approach to cybersecurity helps prevent attacks before they cause significant damage to your organization.

Conclusion

Kerberoasting represents a significant threat to cybersecurity, but through a thorough Security Posture analysis, these vulnerabilities can be identified and mitigated. Secure Online Desktop’s Security Posture Analysis service offers a broad range of tools and resources to protect your organization from these attacks and ensure a secure and reliable network environment.

Investing in the protection of your IT infrastructure is essential to ensure continuity of operations and to protect the sensitive information of your customers and employees. By relying on Secure Online Desktop’s Security Posture analysis service, you can be sure that you have adopted the best practices and solutions to protect your organization from the risks of Kerberoasting and other cybersecurity threats.

Useful links:

Share


RSS

More Articles…

Categories …

Tags

RSS Unknown Feed

RSS Full Disclosure

  • SEC Consult SA-20250604-0 :: Local Privilege Escalation and Default Credentials in INDAMED - MEDICAL OFFICE (Medical practice management) Demo version June 10, 2025
    Posted by SEC Consult Vulnerability Lab via Fulldisclosure on Jun 09SEC Consult Vulnerability Lab Security Advisory < 20250604-0 > ======================================================================= title: Local Privilege Escalation and Default Credentials product: INDAMED - MEDICAL OFFICE (Medical practice management) Demo version vulnerable version: Revision 18544 (II/2024) fixed version: Q2/2025 (Privilege Escalation, Default Password)...
  • Full Disclosure: CVE-2025-31200 & CVE-2025-31201 – 0-Click iMessage Chain → Secure Enclave Key Theft, Wormable RCE, Crypto Theft June 10, 2025
    Posted by josephgoyd via Fulldisclosure on Jun 09Hello Full Disclosure, This is a strategic public disclosure of a zero-click iMessage exploit chain that was discovered live on iOS 18.2 and remained unpatched through iOS 18.4. It enabled Secure Enclave key theft, wormable remote code execution, and undetectable crypto wallet exfiltration. Despite responsible disclosure, the research […]
  • Defense in depth -- the Microsoft way (part 89): user group policies don't deserve tamper protection June 3, 2025
    Posted by Stefan Kanthak on Jun 03Hi @ll, user group policies are stored in DACL-protected registry keys [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies] respectively [HKEY_CURRENT_USER\Software\Policies] and below, where only the SYSTEM account and members of the "Administrators" user group are granted write access. At logon the user&apos;s registry hive "%USERPROFILE%\ntuser.dat" is loaded with exclusive (read, write and...
  • CVE-2025-45542: Time-Based Blind SQL Injection in CloudClassroom PHP Project v1.0 June 3, 2025
    Posted by Sanjay Singh on Jun 03Hello Full Disclosure list, I am sharing details of a newly assigned CVE affecting an open-source educational software project: ------------------------------------------------------------------------ CVE-2025-45542: Time-Based Blind SQL Injection in CloudClassroom PHP Project v1.0 ------------------------------------------------------------------------ Product: CloudClassroom PHP Project Vendor:...
  • ERPNext v15.53.1 Stored XSS in bio Field Allows Arbitrary Script Execution in Profile Page June 3, 2025
    Posted by Ron E on Jun 03An authenticated attacker can inject JavaScript into the bio field of their user profile. When the profile is viewed by another user, the injected script executes. *Proof of Concept:* POST /api/method/frappe.desk.page.user_profile.user_profile.update_profile_info HTTP/2 Host: --host-- profile_info={"bio":"\">"}
  • ERPNext v15.53.1 Stored XSS in user_image Field Allows Script Execution via Injected Image Path June 3, 2025
    Posted by Ron E on Jun 03An authenticated user can inject malicious JavaScript into the user_image field of the profile page using an XSS payload within the file path or HTML context. This field is rendered without sufficient sanitization, allowing stored script execution in the context of other authenticated users. *Proof of Concept:*POST /api/method/frappe.desk.page.user_profile.user_profile.update_profile_info HTTP/2 […]
  • Local information disclosure in apport and systemd-coredump June 3, 2025
    Posted by Qualys Security Advisory via Fulldisclosure on Jun 03Qualys Security Advisory Local information disclosure in apport and systemd-coredump (CVE-2025-5054 and CVE-2025-4598) ======================================================================== Contents ======================================================================== Summary Mitigation Local information disclosure in apport (CVE-2025-5054) - Background - Analysis - Proof of concept Local information disclosure in systemd-coredump...
  • Stored XSS via File Upload - adaptcmsv3.0.3 June 3, 2025
    Posted by Andrey Stoykov on Jun 03# Exploit Title: Stored XSS via File Upload - adaptcmsv3.0.3 # Date: 06/2025 # Exploit Author: Andrey Stoykov # Version: 3.0.3 # Tested on: Debian 12 # Blog: https://msecureltd.blogspot.com/ Stored XSS via File Upload #1: Steps to Reproduce: 1. Login with low privilege user and visit "Profile" > "Edit […]
  • IDOR "Change Password" Functionality - adaptcmsv3.0.3 June 3, 2025
    Posted by Andrey Stoykov on Jun 03# Exploit Title: IDOR "Change Password" Functionality - adaptcmsv3.0.3 # Date: 06/2025 # Exploit Author: Andrey Stoykov # Version: 3.0.3 # Tested on: Debian 12 # Blog: https://msecureltd.blogspot.com/ IDOR "Change Password" Functionality #1: Steps to Reproduce: 1. Login as user with low privilege and visit profile page 2. Select […]
  • Stored XSS "Send Message" Functionality - adaptcmsv3.0.3 June 3, 2025
    Posted by Andrey Stoykov on Jun 03# Exploit Title: Stored XSS "Send Message" Functionality - adaptcmsv3.0.3 # Date: 06/2025 # Exploit Author: Andrey Stoykov # Version: 3.0.3 # Tested on: Debian 12 # Blog: https://msecureltd.blogspot.com/ Stored XSS "Send Message" Functionality #1: Steps to Reproduce: 1. Login as normal user and visit "Profile" > "Message" > […]

Customers

Newsletter

{subscription_form_1}