Saturday, December 2, 2023

Hackers Exploiting Critical Zero-Day Vulnerability in Citrix NetScaler Products

NetScaler ADC and NetScaler Gateway (previously Citrix ADC and Citrix Gateway) contain multiple discovered vulnerabilities.

Citrix ADC is a powerful networking solution that ensures fast, secure, and reliable delivery of applications across networks.

While the NetScaler Gateway is a secure remote access solution that enables users to access their applications and data from anywhere securely.

Citrix recently issued a security bulletin, cautioning users about three new vulnerabilities impacting their above-mentioned product line.

Here below, we have mentioned those three vulnerabilities:-

Hackers Exploiting Zero-Day

While the cybersecurity analysts at Rapid7 marked the CVE-2023-3519 as the critical zero-day vulnerability among the three, enabling unauthenticated attackers to execute code on vulnerable Gateway systems remotely.

Since the CVE-2023-3519 is currently exploited in the wild, poses a significant risk. Due to the popularity of this product line among threat actors, Rapid7 advises immediate emergency updates instead of waiting for the regular patch cycle.

To exploit the security issue, hackers target vulnerable appliances configured as gateways (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or authentication virtual servers (AAA server).

Zero-Day flaw profile

  • CVE ID: CVE-2023-3519
  • Description: Unauthenticated remote code execution
  • CVSS: 9.8
  • Severity: Critical
  • CWE: CWE-94
  • Pre-requisites: Appliance must be configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server.

Affected Products

The vulnerabilities impact the following supported versions of NetScaler ADC and NetScaler Gateway:-

  • NetScaler ADC and NetScaler Gateway 13.1 before 13.1-49.13
  • NetScaler ADC and NetScaler Gateway 13.0 before 13.0-91.13
  • NetScaler ADC 13.1-FIPS before 13.1-37.159
  • NetScaler ADC 12.1-FIPS before 12.1-65.36
  • NetScaler ADC 12.1-NDcPP before 12.65.36

Fixed Product Versions

Here below we have mentioned all the fixed product versions:-

  • NetScaler ADC and NetScaler Gateway 13.1-49.13  and later releases
  • NetScaler ADC and NetScaler Gateway 13.0-91.13  and later releases of 13.0
  • NetScaler ADC 13.1-FIPS 13.1-37.159 and later releases of 13.1-FIPS
  • NetScaler ADC 12.1-FIPS 12.1-65.36 and later releases of 12.1-FIPS
  • NetScaler ADC 12.1-NDcPP 12.1-65.36 and later releases of 12.1-NDcPP

Moreover, to mitigate these security flaws, make sure to apply patches in affected versions of NetScaler ADC and NetScaler Gateway on an immediate basis.

Website

Latest articles

Cactus Ransomware Exploiting Qlik Sense code execution Vulnerability

A new Cactus Ransomware was exploited in the code execution vulnerability to Qlik Sense...

Hackers Bypass Antivirus with ScrubCrypt Tool to Install RedLine Malware

The ScrubCrypt obfuscation tool has been discovered to be utilized in attacks to disseminate the RedLine Stealer...

Hotel’s Booking.com Hacked Logins Let Attacker Steal Guest Credit Cards

According to a recent report by Secureworks, a well-planned and advanced phishing attack was...

Critical Zoom Vulnerability Let Attackers Take Over Meetings

Zoom, the most widely used video conferencing platform has been discovered with a critical...

Hackers Using Weaponized Invoice to Deliver LUMMA Malware

Hackers use weaponized invoices to exploit trust in financial transactions, embedding malware or malicious...

US-Seized Crypto Currency Mixer Used by North Korean Lazarus Hackers

The U.S. Treasury Department sanctioned the famous cryptocurrency mixer Sinbad after it was claimed...

CISA Warns Hackers Exploiting Wastewater Systems Logic Controllers

In a disconcerting turn of events, cyber threat actors have set their sights on...

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