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Rewterz Threat Advisory – Multiple Cisco IOS XR Software Vulnerabilities
September 17, 2022
Rewterz Threat Advisory – CVE-2022-38020 – Microsoft Visual Studio Code Vulnerability
September 18, 2022

Rewterz Threat Advisory – CVE-2022-20845 – Cisco Network Convergence System 4000 Series Vulnerability

September 18, 2022

Severity

Medium

Analysis Summary

CVE-2022-20845

Cisco Network Convergence System 4000 Series devices are vulnerable to a denial of service, caused by a flaw with TL1 not freeing memory under some conditions. By sending specially-crafted TL1 commands, a local authenticated attacker could exploit this vulnerability to cause the TL1 process to consume large amounts of memory, and results in a denial of service condition.

Impact

  • Denial of Service

Indicators Of Compromise

CVE

  • CVE-2022-20845

Affected Vendors

  • Cisco

Affected Products

  • Cisco Network Convergence System 4000 Series

Remediation

Refer to Cisco Security Advisory for patch, upgrade or suggested workaround information.

Cisco Security Advisory

  • 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
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