• Services
    • Assess
      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
      • Secure Architecture Design & Review
      • Red Team Assessment
      • Purple Team Assessment
      • Social Engineering
      • Source Code Review
    • Transform
      • SOC Consultancy
      •     SOC Maturity Assessment
      •     SOC Model Evaluation
      •     SOC Gap Analysis
      •     SIEM Gap Analysis
      •     SIEM Optimization
      •     SOC Content Pack
    • Train
      • Security Awareness and Training
      • Tabletop Exercise
      • Simulated Cyber Attack Exercises
    • Respond
      • Incident Response
      • Incident Analysis
  • Managed Security
    • Managed Security Monitoring
      • Remote SOC
      • Onsite SOC
      • Hybrid SOC
    • Managed Security Services
      • Managed Detection and Response
      • Managed Endpoint Detection and Response
      • Managed Threat Intelligence
      • Managed Threat Hunting
      • Managed Risk-Based SOAR
      • Managed Penetration Testing
  • Solutions
  • Resources
    • Blog
    • Press Release
    • Threat Advisory
  • Company
    • About Us
    • Careers
    • Contact
Rewterz Threat Alert – Orcus RAT – Active IOCs
November 15, 2021
Rewterz Threat Alert – SNAKE Ransomware – Active IOCs
November 15, 2021

Rewterz Threat Advisory – Citrix Application Delivery Controller

November 15, 2021

Severity

High

Analysis Summary

CVE-2021-22955 

Citrix Application Delivery Controller, Citrix Gateway, and Citrix SD-WAN WANOP appliance models are vulnerable to a denial of service. If an appliance is configured as a VPN (Gateway) or AAA virtual server, a remote attacker could exploit this vulnerability to cause a denial of service.

CVE-2021-22956 

Citrix Application Delivery Controller, Citrix Gateway, and Citrix SD-WAN WANOP appliance models are vulnerable to a denial of service. Attacker access to NSIP or SNIP with management interface access could exploit this vulnerability to temporarily disrupt the Management GUI, Nitro API, and RPC communication.

Impact

  • Denial of Service

Affected Vendors

  • Citrix

Affected Products

  • Citrix Gateway 11.1
  • Citrix Gateway 12.1
  • Citrix Gateway 13.0
  • Citrix Application Delivery Controller (ADC) 11.1
  • Citrix Application Delivery Controller (ADC) 12.1
  • Citrix Application Delivery Controller (ADC) 13.0
  • Citrix SD-WAN WANOP Edition 10.2
  • Citrix SD-WAN WANOP Edition 11.4

Remediation

Refer to Citrix Advisory for patch, upgrade or suggested workaround information. See References

https://support.citrix.com/article/CTX330728
  • Services
    • Assess
      • Compromise Assessment
      • APT Assessment
      • Penetration Testing
      • Secure Architecture Design & Review
      • Red Team Assessment
      • Purple Team Assessment
      • Social Engineering
      • Source Code Review
    • Respond
      • Incident Response
      • Incident Analysis
  • Transform
    • SOC Consultancy
    •     SOC Maturity Assessment
    •     SOC Model Evaluation
    •     SOC Gap Analysis
    •     SIEM Gap Analysis
    •     SIEM Optimization
    •     SOC Content Pack
  • Train
    • Security Awareness and Training
    • Tabletop Exercise
    • Simulated Cyber Attack Exercises
  • Managed Security
    • Managed Security Monitoring
      • Remote SOC
      • Onsite SOC
      • Hybrid SOC
    • Managed Security Services
      • Managed Detection and Response
      • Managed Endpoint Detection and Response
      • Managed Threat Intelligence
      • Managed Threat Hunting
      • Managed Risk-Based SOAR
      • Managed Penetration Testing
  • Solutions
  • Resources
    • Blog
    • Threat Advisory
  • Company
    • About Us
    • Careers
    • Contact
COPYRIGHT © REWTERZ. ALL RIGHTS RESERVED.