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10.08.2022
IIT DISTRIBUTION IS THE OFFICIAL DISTRIBUTOR OF WALLIX IN UKRAINE
01.08.2022
Tales from the Dark Web: How Tracking eCrime’s Underground Economy Improves Defenses
20.07.2022
The Rise of Botnet and DDoS Attacks
11.07.2022
Detecting and Mitigating NTLM Relay Attacks Targeting Microsoft Domain Controllers
17.06.2022
What is Data Democratization?
03.06.2022
Immutable Backups Explained: All You Need to Know to Secure Your Data
19.05.2022
Compromised Docker Honeypots Used for Pro-Ukrainian DoS Attack
06.05.2022
WHAT'S NEW IN LABYRINTH DECEPTION PLATFORM: RELEASE 2.0.32
22.04.2022
Palo Alto Networks проінформувала про вразливості, які можуть дозволити зловмиснику відключити платформу Cortex XDR
20.04.2022
Advanced anti-DDoS solutions from A10 Networks are available for installation!
15.04.2022
Inspur Information Rated Gartner Hype Cycle Sample Vendor of Cloud-Optimized Hardware for Second Year
07.04.2022
FAST DELIVERY OF INFINIDAT AND INSPUR SOLUTIONS AVAILABLE NOW!
04.04.2022
Decryptable PartyTicket Ransomware Reportedly Targeting Ukrainian Entities
26.03.2022
HOW NOT TO BECOME AN "UNWITTING ACCOMPLICE" OF RUSSIAN CYBER ATTACKS ON UKRAINIAN SYSTEMS (PART 3)
22.03.2022
CrowdStrike Falcon protects against new Wiper malware used in cyberattacks against Ukraine
20.03.2022
HOW TO NOT BECOME AN "UNCONSCIOUS ACCOMPLICE" TO RUSSIAN CYBER ATTACKS ON UKRAINIAN SYSTEMS (PART 2)
16.03.2022
A10 NETWORKS SECURITY RESEARCH: HOW NOT TO BECOME AN "UNCONSCIOUS ACCOMPLICE" TO RUSSIAN CYBERATTACKS ON UKRAINIAN SYSTEMS
23.02.2022
Демонстрація: CrowdStrike Falcon детектує набір вірусів WhisperGate
23.02.2022
Inspur — компанія №1 за часткою світового ринку AI-серверів!
18.02.2022
Відтепер компанія iIT Distribution – офіційний дистриб’ютор рішень Picus Security!
17.02.2022
Звіт про глобальні загрози 2022 року від CrowdStrike!
14.02.2022
iIT Distribution підписала партнерську угоду з компанією Inspur!
10.02.2022
Пост-реліз: Вебінар, присвячений оновленим можливостям Nakivo Backup & Replication v10.5
10.02.2022
Новітня розробка Falcon XDR від компанії CrowdStrike тепер доступна для користувачів!
02.02.2022
Знайомство з процесами Security Operations Center (SOC) та найкращі рекомендації для його ефективної роботи від Lepide
27.01.2022
Кібератака на українські державні сайти: що нам відомо сьогодні
21.01.2022
Технічний аналіз шкідливого завантажувача WhisperGate, націленого на українські організації
14.01.2022
CrowdStrike Services випускає Incident Response Tracker для спеціалістів DFIR (Digital Forensics and Incident Response)
12.01.2022
Експлойт noPac: Нова вразливість Microsoft AD може призвести до повної компрометації домену за лічені секунди
06.01.2022
7 IT-тенденцій 2022 року, які слід взяти на озброєння
30.12.2021
Витік секретних IP-адрес Pfizer не є рідкістю. Захистіть свої хмарні дані за допомогою проактивного шифрування
30.12.2021
6 афер, які слід уникати в ці новорічні свята: добірка рекомендацій від Panda Security
17.12.2021
Як CrowdStrike захищає клієнтів від загроз, пов'язаних з Log4Shell
16.12.2021
Що таке SCAR і якими технологіями керуються мисливці на загрози з команди Falcon OverWatch?
09.12.2021
Acra Community Edition 0.90.0: шифрування в SQL та NoSQL базах даних без додаткового програмування
08.12.2021
11 кроків до відновлення після фішингової атаки: рекомендації від Lepide
30.11.2021
Компанія Aruba (HPE) шістнадцятий рік поспіль визнається лідером у звіті Gartner Magic Quadrant for Enterprise Wired and WLAN Infrastructure 2021!
23.11.2021
Серія вебінарів від iIT Distribution & NAKIVO: твій надійний бекап!
21.11.2021
Рішення CrowdStrike Falcon отримало найвищу оцінку AAA за результатами тестування організації SE Labs
15.11.2021
Бізнес-вечеря CrowdStrike: як це було?
08.11.2021
iIT Distribution – офіційний дистриб'ютор компанії Nakivo!
05.11.2021
Компанію CrowdStrike визнали світовим лідером у галузі сучасного захисту кінцевих точок в останньому звіті IDC MarketScape!
03.11.2021
What is it the information security of the enterprise? What are the basic principles of data protection?
02.11.2021
CrowdStrike and AWS Expand Integrations to Provide Customers Multi-layered Protection Against Ransomware Attacks and Sophisticated Threats
29.10.2021
Global Threat Report 2021 від CrowdStrike вже доступний українською мовою!
25.10.2021
SDP чи VPN? (Чи обидва варіанти?)
19.10.2021
CrowdStrike представляє перший у своєму роді XDR Module, що забезпечує виявлення інцидентів у реальному часі й автоматичне реагування по всьому стеку безпеки
19.10.2021
Infinidat – лідер серед первинних систем зберігання даних згідно зі звітом Gartner Magic Quadrant 2021
18.10.2021
Компанія iIT Distribution отримала статус офіційного дистриб'ютора A10 Networks
11.10.2021
Впровадження інновації no-code в мережеві процеси
11.10.2021
iIT Distribution розширив арсенал своїх здобутків: фаховий сертифікат NetBrain Certified Platform Associate
05.10.2021
SuperMem: Безкоштовний інструмент CrowdStrike Incident Response для автоматизації обробки образів пам'яті
30.09.2021
Захід, що розширює кордони знань і можливостей: Перший Щорічний Форум з Кібербезпеки CS² DAY 2021 справив справжній фурор на гостей!
23.09.2021
На завершення знайомства з партнерами заходу CS² DAY представляємо компанію-системного інтегратора – CS Consulting!
21.09.2021
Провідний фахівець Security-підрозділу компанії IBM Віталій Воропай завітає на CS² DAY в якості спікера!
20.09.2021
Список спікерів Першого Щорічного Форуму з Кібербезпеки лише поповнюється: знайомтеся з Дмитром Петращуком від компанії IT-Specialist
20.09.2021
На CS² DAY виступлять представники державного сектору: Віктор Жора та Олександр Галущенко!
17.09.2021
Зустрічайте наступного запрошеного спікера довгоочікуваного CS² DAY – Олексія Зайончковського від компанії Netwave!
16.09.2021
Представляємо другого спікера CS² DAY: Михайло Кропива – InfoSec Director топової української IT-компанії SoftServe!
16.09.2021
Познайомтеся ближче з компанією-головним партнером CS² DAY та першим спікером заходу – Майклом Чальватцісом!
08.09.2021
iIT Distribution та CrowdStrike запрошують на CS² DAY – Перший Щорічний Форум з Кібербезпеки!
03.09.2021
Компанія iITD зібрала своїх партнерів на бізнес-вечері A10 Vendor`s Day
30.08.2021
Модель Zero Trust і система DLP: що нового розповіли наші представники та партнери на міжнародній конференції «Digital Change & Customers — Цифрові зміни та клієнтський сервіс»
05.08.2021
We invite you to the international conference "Digital Change & Customers”
28.07.2021
IT'S TIME TO STOP THE FEAR OF NEW TECHNOLOGIES: HOW CAN YOU CHANGE YOUR USUAL SOLUTION PROVIDERS AND IMPLEMENT MORE ADVANCED TECHNOLOGIES INTO YOUR INFRASTRUCTURE?
20.07.2021
Achieve petabyte-scale data protection with lightning-fast recovery!
12.07.2021
Infinidat — is the best choice for Gartner Peer Insights 2021 customers!
06.07.2021
CrowdStrike took first place in the market share of Modern Endpoint Security 2020!
05.07.2021
A10 Thunder ADC application delivery controller in our warehouse!
22.06.2021
The announcement of a new solution for storing InfiniBox SSA corporate class data from infinidat!
10.06.2021
The invitation to the third virtual forum CrowdStrike!
07.06.2021
The first deliveries of Aruba network equipment
01.06.2021
GTB Technologies comprehensive DLP solution received a certificate from the State Service for Special Communications and Information Protection of Ukraine
31.05.2021
How subtle attacks maximize hackers' profits and what defensive actions need to be taken immediately
19.05.2021
iIT Distribution is the official distributor of Automox
18.05.2021
A series of training workshops from CrowdStrike
11.05.2021
CrowdStrike has become the leader in the Gartner Magic Quadrant 2021 for the second time among endpoint protection platforms!
11.05.2021
Review of the new version of NetBrain Integrated Edition 10.0. Continuation
28.04.2021
Review of the new version of NetBrain Integrated Edition 10.0
26.04.2021
Infinidat is launching a partner accreditation program
16.04.2021
iIT Distribution is the official distributor of Lookout
12.04.2021
iIT Distribution expands its portfolio with networking solutions from Aruba Networks
12.04.2021
IIT Distribution received the status of a Business Partner in the Hewlett Packard Enterprise affiliate program
08.04.2021
Why should hosting providers pay attention to Infinidat data storage solution? Practical experience of use
05.04.2021
The ZTNA model helps reduce the stress loading of employees from remote work
30.03.2021
Сrowdstrike named leader in security Threat Detection, Response and Investigation of cyberincidents (MDMR)!
24.03.2021
Falcon X від CrowdStrike визнаний лідер у звіті Forrester Wave: External Threat Intelligence Services за перший квартал 2021 року!
15.03.2021
New Forrester study shows all the economic benefits of using the Falcon Complete!
02.03.2021
iITD is the official partner of the International Grand Forum "BIT & BIS-2021"!
24.02.2021
CrowdStrike has announced the acquisition of Humio's leading high-performance log management platform!
18.02.2021
Intelligent IT Distribution at the international conference "Go Digital - 2021: acceleration and migration. Money goes online".
08.02.2021
International Conference "Go Digital - 2021: acceleration and migration. Money goes online".
25.01.2021
Crowdstrike's response to recent supply chain attacks
08.10.2020
Intelligent IT Distribution takes part in the third annual international forum "Cybersecurity - protect business, protect the state"
29.09.2020
IITD - partner of the forum "Cybersecurity - protect business, protect the country" 2020
24.09.2020
iIT Distribution got the status of a distributor of Netbrain technologies solutions in the territory of Ukraine
28.08.2020
Fal.Con 2020 by CrowdStrike
25.08.2020
Compliance with cyberrisk insurance
25.08.2020
Automatically block compartment accounts with Lepide Active Directory Self Service 20.1
25.08.2020
Cossack Labs invites you to visit NONAMECON
22.07.2020
Signing a distribution agreement with SAFE-T
21.07.2020
International Conference "Online Banking - Time of Innovation!"
18.06.2020
Global Cyber Threat Report 2020
11.06.2020
Thursday, the 25-th of June, 2020. Do not miss!
20.05.2020
PandaLabs Report: Understanding Threats 2020
05.05.2020
Announcement: New version of ACRA Enterprise, which provides increased flexibility for high-loaded systems
13.04.2020
Lepide Remote Worker Monitoring Pack is a simple in deployment and lightweight security platform, which offers immediate protection of business data during an unforeseen period of remote work.
12.04.2020
Ensuring cybersecurity for remote users
08.04.2020
Labyrinth Technologies offers to take advantage of a special offer - a license for 12 months at a price of 6 months
07.04.2020
Crowdstrike: Remote work and IT security during the crisis - a reduced licensed program for 3-6 months
23.03.2020
IIT Distribution received the status of distributor solutions RedSeal Networks in Ukraine
23.03.2020
IIT DISTRIBUTION has received the status of a Lepide solutions distributor in Ukraine
Adversaries often exploit outdated protocols to infiltrate an organization's work environment. But, despite the already known vulnerabilities of such protocols as Windows NTLM, they are still widely used in corporate networks.
One of the latest major variations of the NTLM relay attack is the combination of the PetitPotam vulnerability with AD-CS relay, which according to research group CrowdStrike Identity Protection is highly popular.While the latest Microsoft security update — released on Patch Tuesday, May 10, 2022 — included a patch for the aforementioned vulnerability, it does not fully mitigate the issue. It does, however, change the requirements from being able to run the attack unauthenticated, to requiring any Active Directory account credentials to trigger the attack .
We invite you to take a detailed look at the fixes, find out what issues remain unsolved, and learn about improvements to Falcon Identity Protection existing NTLM relay detection, which detects exploitation of the PetitPotam vulnerability and similar authentication coercion techniques.
PetitPotam and NTLM Relay
NTLM relay has always been a popular attack technique. In the past, the biggest challenge was to solicit a user account to authenticate to an attacker-controlled machine; now it seems that endpoint authentication coercion mechanisms are gaining popularity.
The most popular targets, for obvious reasons, are domain controllers, as their high privileges make them a lucrative target for authentication relay attacks. The first authentication coercion mechanism involved the Print Spoolerservice, while the newer one relies on the MS-EFSRPC protocol. The latter is also known as the PetitPotam attack. When combined with the insecure default configuration of the Active Directory Certificate Services (AD-CS), which does not enforce Extended Protection for Authentication (EPA), it could be deadly as it can lead to a full domain compromise in a few steps. An attacker could trigger a domain controller authentication by exploiting the PetitPotam vulnerability and relaying it to the AD-CS server to request a certificate for the domain controller account. Using this certificate, a malicious actor can then retrieve a TGT for the relayed domain controller account and perform any further operations using its high privileges (e.g., dump domain admin hashes).
One of the most severe issues with the PetitPotam vulnerability, prior to Microsoft’s latest security updates, was that an attacker could run the attack unauthenticated (i.e., only network access to the domain controller was required). The patch only partially mitigates the issue,meaning an attack is still possible.
The Released Fix(es) and Remaining Issues
The Microsoft security update released on Patch Tuesday, May 10, 2022, included a partial patch for the PetitPotam vulnerability. This update, however, also caused authentication failures for various Windows services such as Network Policy Server (NPS), Routing and Remote Access Service (RRAS), Radius, Extensible Authentication Protocol (EAP) and Protected Extensible Authentication Protocol (PEAP). According to Microsoft, “An issue has been found related to how the mapping of certificates to machine accounts is being handled by the domain controller.”
As a workaround, Microsoft recommended to manually map certificates to Active Directory accounts or follow KB5014754 for other possible mitigations. Because of the issues caused by the patch, CISA warned against deploying it on domain controllers, which left many organizations wide open to the unauthenticated PetitPotam authentication coercion attack. On May 19, 2022, an out-of-band update was made available to fix the authentication failures caused by the latest security update.
It is important to note that the security update states, “This security update detects anonymous connection attempts in LSARPC and disallows it,” which leaves the question: Does the coercion attack still work using an authenticated user?
Following some testing, it looks like the answer is yes!
While the PetitPotam vulnerability, when patched, will no longer work unauthenticated, it can still be abused by leveraging any Active Directory account credentials to trigger domain controller NTLM authentication, which can be relayed to a escalate to domain admin privileges if the required security settings are not enforced (as previously mentioned, EPA is not enforced by default on AD-CS servers).
Moreover, PetitPotam is no longer the newest authentication coercion method; the attack tool DFSCoerce, which abuses the MS-DFSNM protocol to trigger domain controller authentication, has since been released.
Enhancing CrowdStrike Identity Protection NTLM Relay Detection
Because an authenticated user can still trigger an NTLM authentication from the domain controller, the NTLM relay attack vector remains relevant for domain controller accounts. This is why the NTLM relay detection capability of CrowdStrike Falcon Identity Threat Protection was enhanced to detect attempts to perform NTLM relay using domain controller credentials. The benefit of this detection is that it is not tied to any single authentication coercion method, but will detect a relay attack no matter if it is initiated by the PetitPotamvulnerability, the newer DFSCoerce tool or any coercion mechanism discovered in the future.
Additional Mitigations
Though patching is an important first step against the latest NTLM relay vulnerabilities, it is not enough, as many unsecured defaults can leave your domain vulnerable. This is why we recommend following these steps:
- Enforce Signing (SMB/LDAP) and Extended Protection for Authentication (EPA) for all relevant servers, especially the AD-CS servers, which are a common target of this attack.
- Track any failed/successful NTLM relay attempts performed in your domain network. Using the enhanced detection capabilities of the CrowdStrike Falcon Identity Threat Protection, customers can now be alerted on NTLM relay attacks abusing domain controller accounts.
- Disable NTLM. Because this is a potentially breaking change that requires a lot of time in most environments, start by disabling NTLM support on servers that may be targeted during a relay attack and are not sufficiently protected. For example, if for any reason you are unable to enforce EPA on the AD-CS server, disable incoming NTLM on that server to protect it from NTLM relay attacks.
A reliable solution for the protection of end devices and credentials will give you peace of mind and confidence in the security of valuable corporate information. If you need help in selecting and implementing an effective cyber security solution, the experienced experts of iIT Distribution will help with this issue. iIT Distribution is the official distributor of CrowdStrike solutions in the territories of Ukraine, Kazakhstan, Georgia and Uzbekistan.
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