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Rewterz Threat Advisory – ICS: Rockwell Automation FactoryTalk Linx

November 25, 2020

Severity

High

Analysis Summary

CVE-2020-27253 

A flaw exists in the Ingress/Egress checks routine of FactoryTalk Linx. This vulnerability could allow a remote, unauthenticated attacker to specifically craft a malicious packet resulting in a denial-of-service condition on the device.

CVE-2020-27251

A heap overflow vulnerability exists within FactoryTalk Linx. This vulnerability could allow a remote, unauthenticated attacker to send malicious port ranges, which could result in remote code execution. 

CVE-2020-27255 

A heap overflow vulnerability exists within FactoryTalk Linx. This vulnerability could allow a remote, unauthenticated attacker to send malicious set attribute requests, which could result in the leaking of sensitive information. This information disclosure could lead to the bypass of address space layout randomization (ASLR). 

Impact

  • Denial of service
  • Remote code execution
  • Information disclosure

Affected Vendors

Rockwell Automation

Affected Products

FactoryTalk Linx: Version 6.11 and prior

Remediation

Rockwell Automation recommends users of the affected FactoryTalk Linx update to a fixed version.

FactoryTalk Linx v6.10/6.11

  • 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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