Sunday, July 14, 2024
EHA

New Microsoft ADFS Protocol Vulnerability allow Hackers to Compromise the Entire Organization Network

New vulnerability discovered in Microsoft Active Directory Federated Services (ADFS) protocol that integrated with Multifactor authentication service allows an attacker to compromise the entire network of the target organization.

This Flaw allows two-factor authentication that used in one account can be used for the all accounts in the organization, so if the single user will be compromised then it leads to taking over all other accounts in the organization.

Most of the organization using multi-factor authentication along password that including phone or tokens in order to protect their network.

But if the attacker will compromise the single users account password and two factor then the same two-factor authentication can be used for the entire organization due to this weakness in the MFA protocol for Microsoft’s authentication system.

This is a very valuable option for an attacker who gained the limited access to the target and expands the attack.

How does this ADFS Vulnerability works

Let’s assume that Alice and Bob working in the same company and both are in the same Actvice directory.

Initially, an attacker gains the Alice Username/Password, and the attacker also gain Bob’s both username/password and the second factor.

An attacker could be an insider threat or low privileged accounts, or the attack could social engineering else reaching helpdesk to reset the second-factor authentication.

some time attacker using phishing attack, brute-force, and other methods based on the privilege capability to gain the username and password from Alice.

Later external attackers can also gain the Bob username/password using same social engineering method which contains no second-factor authentication.

Attacker set their own phone as a second factor if Bob is not enrolled in a second factor, so MFA provider will go through the enrollment process with the attacker.

This grants the attacker access to Bob’s account. Alongside the credentials stolen from Alice, the attacker has now fulfilled the requirements for exploiting this vulnerability.

According to the researchers, While phone notifications are a concrete example, the attack works equally well with other forms of the second factor. The MFA Context and MFA Token are used by the AD server and the MFA provider to coordinate the second-factor authentication flow.

A similar sequence occurs when the attacker submits Bob’s username and password. The attacker receives a session cookie, MFA Context and MFA Token for Bob. However, this time the attacker can complete the second-factor authentication flow for Bob’s token. This involves sending Bob’s token to the MFA provider, which then sends a notification to the attacker’s phone, where the attacker can press “Approve”. The MFA provider then records that the flow for Bob’s token has been approved.

This vulnerability is best addressed within ADFS and it likely affects all MFA products for ADFS.

After being notified about the vulnerability and independently validating it, Microsoft produced a patch to address it. See CVE-2018-8340. and Organizations running Microsoft ADFS are advised to patch their systems.

Also, you can read the complete Attack process of this vulnerability and its execution flow Here.

Also Read:

Microsoft Edge Browser Vulnerability Allows Malicious Hackers Steal Your Computer Local Files

Let’s Encrypt Root Certificate Now Directly Trusted by Microsoft and all Major Root Programs

Hackers Distributing FELIXROOT Backdoor Malware using Microsoft Office Vulnerabilities

Website

Latest articles

mSpy Data Breach: Millions of Customers’ Data Exposed

mSpy, a widely used phone spyware application, has suffered a significant data breach, exposing...

Advance Auto Parts Cyber Attack: Over 2 Million Users Data Exposed

RALEIGH, NC—Advance Stores Company, Incorporated, a prominent commercial entity in the automotive industry, has...

Hackers Using ClickFix Social Engineering Tactics to Deploy Malware

Cybersecurity researchers at McAfee Labs have uncovered a sophisticated new method of malware delivery,...

Coyote Banking Trojan Attacking Windows Users To Steal Login Details

Hackers use Banking Trojans to steal sensitive financial information. These Trojans can also intercept...

Hackers Created 700+ Fake Domains to Sell Olympic Games Tickets

As the world eagerly anticipates the Olympic Games Paris 2024, a cybersecurity threat has...

Japanese Space Agency Spotted zero-day via Microsoft 365 Services

The Japan Aerospace Exploration Agency (JAXA) has revealed details of a cybersecurity incident that...

Top 10 Active Directory Management Tools – 2024

Active Directory Management Tools are essential for IT administrators to manage and secure Active...
Balaji
Balaji
BALAJI is an Ex-Security Researcher (Threat Research Labs) at Comodo Cybersecurity. Editor-in-Chief & Co-Founder - Cyber Security News & GBHackers On Security.

Free Webinar

Low Rate DDoS Attack

9 of 10 sites on the AppTrana network have faced a DDoS attack in the last 30 days.
Some DDoS attacks could readily be blocked by rate-limiting, IP reputation checks and other basic mitigation methods.
More than 50% of the DDoS attacks are employing botnets to send slow DDoS attacks where millions of IPs are being employed to send one or two requests per minute..
Key takeaways include:

  • The mechanics of a low-DDoS attack
  • Fundamentals of behavioural AI and rate-limiting
  • Surgical mitigation actions to minimize false positives
  • Role of managed services in DDoS monitoring

Related Articles