Wednesday, December 6, 2023

Super FabriXss Vulnerability in Microsoft Azure SFX Leads to Unauthenticated RCE

New information has surfaced regarding a security flaw patched by Microsoft in Azure Service Fabric Explorer (SFX). The vulnerability had the potential to result in unauthorized remote code execution.

The vulnerability has been discovered by the security researchers at Orca Security and tracked as CVE-2023-23383 with a CVSS score of 8.2, dubbed “Super FabriXss.”

Super FabriXss Vulnerability

The current Service Fabric Explorer (SFX) dashboard shares many similarities with the previous version, which Microsoft patched in October 2022 following the discovery of the FabriXss vulnerability (CVE-2022-35829).

On the other hand, the difference between the old SFX and the new one is that we can no longer toggle between the two at any time.

By exploiting the XSS vulnerability, the Super FabriXss vulnerability can enable threat actors to execute code remotely on a container hosted on a Service Fabric node. All these could be done without needing to authenticate themselves.

XSS is an attack involving injecting malicious code into legitimate websites, typically through vulnerabilities on the client side, allowing attackers to execute harmful scripts.

A number of unintended effects can occur when the scripts in the compromised website are executed on each visit by a victim.

The recently discovered Super FabriXss vulnerability in the “Events” tab of Azure Service Fabric Explorer is a reflected XSS flaw that can be triggered when a user clicks a link with an embedded malicious script.

To take advantage of an XSS vulnerability in the Service Fabric platform, attackers can exploit the Cluster Type Toggle options by exploiting the vulnerability. 

This is done so that a customized URL can initiate the upgrade and the existing Compose deployment can be overwritten. It specifically targets the Service Fabric platform by targeting the Events Tab.

Flaw Profile

  • CVE ID: CVE-2023-23383
  • Description: Service Fabric Explorer Spoofing Vulnerability
  • CVSS Score: 8.2
  • Severity: Critical

Super FabriXss Vulnerability Demo

It is only the Windows Cluster that is susceptible to the SuperFabriXxs vulnerability. The steps for exploiting this vulnerability are outlined below:-

  • Step 1: Creating the Azure Service Fabric Cluster
  • Step 2: Observing Node Name Changes
  • Step 3: Toggling the Cluster Option
  • Step 4: Leveraging the XSS to an RCE

NetSPI has recently disclosed a security vulnerability in Azure Function Apps that allows users with limited “read-only” permissions to obtain unauthorized access to confidential data and execute commands.

When an attacker hijacks a genuine application, they can utilize it as a launching pad for more attacks or to obtain entry to valuable resources and confidential data.

Searching to secure your APIs? – Try Free API Penetration Testing

Related Read:


Latest articles

BlueNoroff: New Malware Attacking MacOS Users

Researchers have uncovered a new Trojan-attacking macOS user that is associated with the BlueNoroff APT...

Serpent Stealer Acquires Browser Passwords and Erases Intrusion Logs

Beneath the surface of the cyber realm, a silent menace emerges—crafted with the precision...

Doppelgänger: Hackers Employ AI to Launch Highly sophistication Attacks

It has been observed that threat actors are using AI technology to conduct illicit...

Kali Linux 2023.4 Released – What’s New!

Kali Linux 2023.4, the latest version of Offensive Security's renowned operating system, has been...

Trickbot Malware Developer Pleads Guilty & Faces 35 Years in Prison

A 40-year-old Russian national, Vladimir Dunaev, pleaded guilty for developing and deploying Trickbot malware....

ICANN Launches RDRS to Assist Law Enforcement Agencies to Discover Private Info

ICANN is a non-profit organization that is responsible for coordinating the global internet's-DNSIP address...

Hackers Use Weaponized Documents to Attack U.S. Aerospace Industry

An American aerospace company has been the target of a commercial cyberespionage campaign dubbed...

API Attack Simulation Webinar

Live API Attack Simulation

In the upcoming webinar, Karthik Krishnamoorthy, CTO and Vivek Gopalan, VP of Products at Indusface demonstrate how APIs could be hacked.The session will cover:an exploit of OWASP API Top 10 vulnerability, a brute force account take-over (ATO) attack on API, a DDoS attack on an API, how a WAAP could bolster security over an API gateway

Related Articles