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Rewterz Threat Advisory – CVE-2021-4160 – OpenSSL weak security Vulnerability
January 31, 2022
Rewterz Threat Alert – Lazarus APT Group – Active IOCs
January 31, 2022

Rewterz Threat Advisory – CVE-2022-20685 – Multiple Cisco Products Snort Modbus Vulnerabilities

January 31, 2022

Severity

High

Analysis Summary

CVE-2022-20685 

Multiple Cisco Products Snort Modbus are vulnerable to a denial of service, caused by an integer overflow while processing Modbus traffic. By sending specially-crafted Modbus traffic, a remote attacker could exploit this vulnerability to cause the Snort process to hang.

Impact

  • Denial of Service

Affected Vendors

Cisco

Affected Products

  • Cisco Integrated Services Virtual Router (ISRv)
  • Cisco 1000 Series Integrated Services Routers (ISRs)
  • Cisco 4000 Series Integrated Services Routers (ISRs)
  • Cisco Catalyst 8000V Edge Software
  • Cisco Catalyst 8200 Series Edge Platforms
  • Cisco Catalyst 8300 Series Edge Platforms
  • Cisco Cloud Services Routers 1000V Series
  • Cisco Catalyst 8500 Series Edge Platforms
  • Cisco Catalyst 8500L Series Edge Platforms

Remediation

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

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-dos-9D3hJLuj
  • 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
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    • About Us
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    • Contact
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