Giacomo Lanzi
Pass the Ticket: how to mitigate it with a SOCaaS
Estimated reading time: 5 minutes
Every year the number of attacks that threaten the security of devices, computer systems, servers and network infrastructures is growing steadily. This is done by taking advantage of the vulnerabilities present in these systems. Among the many types of attacks, particular attention must be paid to the pass the ticket (PTT) attack.
With a pass the ticket attack it is possible to take advantage of the Kerberos network protocol, present in all major operating systems, to access a user’s session without having his login credentials. An attack of this type can be difficult to detect and is usually able to bypass the most common system access controls.
Pass The Ticket: what it is and how it works
Kerberos
Before understanding in detail what a PTT attack is and how it works, it is advisable to clarify the Kerberos network protocol since an attack of this type uses this protocol. Kerberos is a network protocol designed by MIT in the 1980s and became a standard IETF in 1993. It is used for strong authentication between different terminals through a symmetric key encryption system, without transmitting any passwords.
The advantage of using the Kerberos protocol lies in its strong authentication system between client and server. This makes it very effective against phishing and “ man in the middle ” attacks.
Kerberos is integrated into all major operating systems belonging to well-known companies such as Microsoft, Apple, Red Hat Linux and many more.
With a pass the ticket attack it is possible to exploit Kerberos authentication to gain access to a user account. The consequences that such an event could entail are not are to be underestimated. Among the many imaginable scenarios, for example, there could be the possibility that the compromised account enjoys high administrative privileges thus guaranteeing the hacker full access to resources.
The attack
A pass the ticket attack allows you to gain privileged access to network resources without having to use any user passwords . Here’s how: In Active Directory, a Ticket Granting Ticket (TGT) serves to prove that a user is just who he says to be. Through some tools and techniques, a hacker could collect these tickets and use them to request Ticket Granting Services (TGS) in order to access resources present in other parts of the network.
A PTT attack could involve risks even if the compromised account does not have particular administrative privileges since the hacker, through the Lateral Movement, may be able to gain access to other accounts and devices.
The difference between pass the ticket and an attack pass the hash lies in the fact that the former exploits TGT tickets that have an expiration of a few hours, while the latter uses NTLM hashes that change only in case a user decides to change his password. A TGT ticket must be used within its expiration time or renewed for a longer period of time.
How to Defend and Prevent a Pass The Ticket Attack
Keeping a network and the devices connected to it safe is a very important factor. You must always have protocols and software that are able to guarantee effective protection from all kinds of threats , with up-to-date systems that keep sensitive information safe. Enterprises can take advantage of endpoint detection and response technologies. Local detection of multiple tickets used for the same session will be possible.
Account case without-privileges
In the event of a pass the ticket attack, if the compressed account from which the TGT or TGS was stolen was a low-privilege account, the mitigation could be quite simple. Just reset the user’s Active Directory password. Such an action would invalidate the TGT or TGS, preventing the hacker from generating new tickets.
Case-account with privileges
Conversely, if the PTT attack compromised a privileged account, limiting the damage is much more difficult. In these cases, companies could respond to the attack by resetting the Kerberos TGT service to to generate a new signing key, making sure to delete the compromised key.
Next you need to drill down into Kerberos logs and Active Directory information to investigate and find out which network resources have been compromised. In this way it is also possible to understand which data may have been stolen. The technology SIEM allows organizations to assimilate, analyze and analyze this data.
Protection from attack
To ensure complete protection of an infrastructure, also preventing pass the ticket attacks, it is good to use valid detection technologies such as UEBA and SIEM. In fact, it is possible to prevent Pass The Ticket attacks by analyzing the behavior of users and entities. The solution UEBA , in these cases, would ensure the quick identification of any compromised account, blocking it in order to mitigate the damage.
Some software SIEM also allow not only to analyze traditional logs but are also able to provide an accurate analysis of security , analyzing the behavior of the network and users in order to detect promptly the presence of any threats to the infrastructure.
Conclusions
We have seen what a pass the ticket attack is and how companies can adopt specific solutions to intercept the dangers and anomalies of an entire IT infrastructure. This allows us to mitigate threats more effectively.
A complete solution, as we have seen, involves constant and granular communication monitoring . The solution we propose for this purpose is a SOCaaS .
If you want to know our dedicated security services, do not hesitate to contact us. You can use the button below, we will be happy to answer any of your questions.
Useful links:
Share
RSS
More Articles…
- From Secure Online Desktop to Cyberfero: rebranding of the leading cybersecurity company
- NIS: what it is and how it protects cybersecurity
- Advanced persistent threats (APTs): what they are and how to defend yourself
- Penetration Testing and MFA: A Dual Strategy to Maximize Security
- Penetration Testing: Where to Strike to Protect Your IT Network
- Ransomware: a plague that brings companies and institutions to their knees. Should you pay the ransom? Here is the answer.
- Why IT audit and log management are important for Cybersecurity
- Red Team, Blue Team and Purple Team: what are the differences?
Categories …
- Backup as a Service (18)
- Acronis Cloud Backup (11)
- Veeam Cloud Connect (4)
- Cloud Conference (3)
- Cloud CRM (1)
- Cloud Server/VPS (22)
- Conferenza Cloud (4)
- Cyberfero (15)
- ICT Monitoring (5)
- Log Management (2)
- News (25)
- ownCloud (4)
- Privacy (7)
- Security (203)
- Cyber Threat Intelligence (CTI) (8)
- Deception (4)
- Ethical Phishing (11)
- Netwrix Auditor (2)
- Penetration Test (11)
- Posture Guard (3)
- SOCaaS (65)
- Vulnerabilities (84)
- Web Hosting (15)
Tags
darkreading
- Venom Spider Spins Web of New Malware for MaaS Platform December 3, 2024A novel backdoor malware and a loader that customizes payload names for each victim have been added to the threat group's cybercriminal tool set.
- Ransomware's Grip on Healthcare December 3, 2024Until C-level executives fully understand potential threats and implement effective mitigation strategies, healthcare organizations will remain vulnerable and at risk of disruption.
- Note From the Editor-in-Chief December 3, 2024A change in ownership and what it means for our readers.
- 'White FAANG' Data Export Attack: A Gold Mine for PII Threats December 3, 2024Websites these days know everything about you — even some details you might not realize. Hackers can take advantage of that with a sharp-toothed attack that exploits Europe's GDPR-mandated data portability rules.
- 'Bootkitty' First Bootloader to Take Aim at Linux December 2, 2024Though it's still just a proof of concept, the malware is functional and can evade the Secure Boot process on devices from multiple vendors.
- Interpol Cyber-Fraud Action Nets More Than 5K Arrests December 2, 2024Chalk up another win for global cooperation among law enforcement, this time targeting seven types of cyber fraud, including voice phishing and business email compromise.
- AWS Launches New Incident Response Service December 2, 2024AWS Security Incident Response will help security teams defend their organizations from account takeovers, breaches, ransomware attacks, and other types of security threats.
- Name That Edge Toon: Shackled! December 2, 2024Feeling creative? Submit your caption and our panel of experts will reward the winner with a $25 gift card.
- Does Your Company Need a Virtual CISO? December 2, 2024With cybersecurity talent hard to come by and companies increasingly looking for guidance and best practices, virtual and fractional chief information security officers can make a lot of sense.
- 2 UK Hospitals Targeted in Separate Cyberattacks December 2, 2024Alder Hey Children's Hospital got hit with a ransomware attack, while the nature of an incident at Wirral University Teaching Hospital remains undisclosed.
Full Disclosure
- Microsoft Warbird and PMP security research - technical doc December 3, 2024Posted by Security Explorations on Dec 03Hello All, We have released a technical document pertaining to our Warbird / PMP security research. It is available for download from this location: https://security-explorations.com/materials/wbpmp_doc.md.txt The document provides a more in-depth technical explanation, illustration and verification of discovered attacks affecting PlayReady on Windows 10 / 11 x64 and pertaining […]
- Access Control in Paxton Net2 software December 3, 2024Posted by Jeroen Hermans via Fulldisclosure on Dec 02CloudAware Security Advisory [CVE pending]: Potential PII leak and incorrect access control in Paxton Net2 software ======================================================================== Summary ======================================================================== Insecure backend database in the Paxton Net2 software. Possible leaking of PII incorrect access control. No physical access to computer running Paxton Net2 is required....
- SEC Consult SA-20241127-0 :: Stored Cross-Site Scripting in Omada Identity (CVE-2024-52951) November 27, 2024Posted by SEC Consult Vulnerability Lab via Fulldisclosure on Nov 27SEC Consult Vulnerability Lab Security Advisory < 20241127-0 > ======================================================================= title: Stored Cross-Site Scripting product: Omada Identity vulnerable version:
- SEC Consult SA-20241125-0 :: Unlocked JTAG interface and buffer overflow in Siemens SM-2558 Protocol Element, Siemens CP-2016 & CP-2019 November 27, 2024Posted by SEC Consult Vulnerability Lab via Fulldisclosure on Nov 27SEC Consult Vulnerability Lab Security Advisory < 20241125-0 > ======================================================================= title: Unlocked JTAG interface and buffer overflow product: Siemens SM-2558 Protocol Element (extension module for Siemens SICAM AK3/TM/BC), Siemens CP-2016 & CP-2019 vulnerable version: JTAG: Unknown HW revision, Zynq Firmware...
- Re: Local Privilege Escalations in needrestart November 27, 2024Posted by Mark Esler on Nov 27The security fix for CVE-2024-48991, 6ce6136 (“core: prevent race condition on /proc/$PID/exec evaluation”) [0], introduced a regression which was subsequently fixed 42af5d3 ("core: fix regression of false positives for processes running in chroot or mountns (#317)") [1]. Many thanks to Ivan Kurnosov and Salvatore Bonaccorso for their review. [0] […]
- APPLE-SA-11-19-2024-5 macOS Sequoia 15.1.1 November 21, 2024Posted by Apple Product Security via Fulldisclosure on Nov 21APPLE-SA-11-19-2024-5 macOS Sequoia 15.1.1 macOS Sequoia 15.1.1 addresses the following issues. Information about the security content is also available at https://support.apple.com/121753. Apple maintains a Security Releases page at https://support.apple.com/100100 which lists recent software updates with security advisories. JavaScriptCore Available for: macOS Sequoia Impact: Processing maliciously crafted […]
- Local Privilege Escalations in needrestart November 21, 2024Posted by Qualys Security Advisory via Fulldisclosure on Nov 21Qualys Security Advisory LPEs in needrestart (CVE-2024-48990, CVE-2024-48991, CVE-2024-48992, CVE-2024-10224, and CVE-2024-11003) ======================================================================== Contents ======================================================================== Summary Background CVE-2024-48990 (and CVE-2024-48992) CVE-2024-48991 CVE-2024-10224 (and CVE-2024-11003) Mitigation Acknowledgments Timeline I got bugs...
- APPLE-SA-11-19-2024-4 iOS 17.7.2 and iPadOS 17.7.2 November 21, 2024Posted by Apple Product Security via Fulldisclosure on Nov 21APPLE-SA-11-19-2024-4 iOS 17.7.2 and iPadOS 17.7.2 iOS 17.7.2 and iPadOS 17.7.2 addresses the following issues. Information about the security content is also available at https://support.apple.com/121754. Apple maintains a Security Releases page at https://support.apple.com/100100 which lists recent software updates with security advisories. JavaScriptCore Available for: iPhone XS […]
- APPLE-SA-11-19-2024-3 iOS 18.1.1 and iPadOS 18.1.1 November 21, 2024Posted by Apple Product Security via Fulldisclosure on Nov 21APPLE-SA-11-19-2024-3 iOS 18.1.1 and iPadOS 18.1.1 iOS 18.1.1 and iPadOS 18.1.1 addresses the following issues. Information about the security content is also available at https://support.apple.com/121752. Apple maintains a Security Releases page at https://support.apple.com/100100 which lists recent software updates with security advisories. JavaScriptCore Available for: iPhone XS […]
- APPLE-SA-11-19-2024-2 visionOS 2.1.1 November 21, 2024Posted by Apple Product Security via Fulldisclosure on Nov 21APPLE-SA-11-19-2024-2 visionOS 2.1.1 visionOS 2.1.1 addresses the following issues. Information about the security content is also available at https://support.apple.com/121755. Apple maintains a Security Releases page at https://support.apple.com/100100 which lists recent software updates with security advisories. JavaScriptCore Available for: Apple Vision Pro Impact: Processing maliciously crafted web […]
Customers
Twitter FEED
Recent activity
-
SecureOnlineDesktop
Estimated reading time: 6 minutes L'impatto crescente delle minacce informatiche, su sistemi operativi privati op… https://t.co/FimxTS4o9G
-
SecureOnlineDesktop
Estimated reading time: 6 minutes The growing impact of cyber threats, on private or corporate operating systems… https://t.co/y6G6RYA9n1
-
SecureOnlineDesktop
Tempo di lettura stimato: 6 minuti Today we are talking about the CTI update of our services. Data security is… https://t.co/YAZkn7iFqa
-
SecureOnlineDesktop
Estimated reading time: 6 minutes Il tema della sicurezza delle informazioni è di grande attualità in questo peri… https://t.co/tfve5Kzr09
-
SecureOnlineDesktop
Estimated reading time: 6 minutes The issue of information security is very topical in this historical period ch… https://t.co/TP8gvdRcrF
Newsletter
{subscription_form_1}Products and Solutions
Partners
Cloud Models
News
- From Secure Online Desktop to Cyberfero: rebranding of the leading cybersecurity company May 6, 2024
- NIS: what it is and how it protects cybersecurity April 22, 2024
- Advanced persistent threats (APTs): what they are and how to defend yourself April 17, 2024
- Penetration Testing and MFA: A Dual Strategy to Maximize Security April 15, 2024
- Penetration Testing: Where to Strike to Protect Your IT Network March 25, 2024
Google Reviews
Ottima azienda, servizi molto utili, staff qualificato e competente. Raccomandata!read more
Ottimo supportoread more
E' un piacere poter collaborare con realtà di questo tiporead more
Un ottimo fornitore.
Io personalmente ho parlato con l' Ing. Venuti, valore aggiunto indubbiamente.read more
About
© 2024 Cyberfero s.r.l. All Rights Reserved. Sede Legale: via Statuto 3 - 42121 Reggio Emilia (RE) – PEC [email protected] Cod. fiscale e P.IVA 03058120357 – R.E.A. 356650 Informativa Privacy - Certificazioni ISO