Memory Allocation Vulnerability in RSLinxNG by Rockwell Automation
CVE-2020-5802

7.5HIGH

Key Information:

Vendor

Rockwellautomation

Status
Rockwell Factorytalk Linx
Vendor
CVE Published:
29 December 2020

What is CVE-2020-5802?

A vulnerability exists in RSLinxNG related to improper handling of memory allocation in the RnaDaSvr.dll. By sending a specially crafted ConfigureItems message to TCP port 4241, an attacker can exploit this vulnerability to trigger an unhandled exception, leading to the termination of the RSLinxNG.exe process. This issue affects RSLinxNG in various versions, including FactoryTalk 6.11, potentially exposing users to disruption and instability within their systems.

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Affected Version(s)

Rockwell FactoryTalk Linx All versions of FactoryTalk Linx

References

https://www.tenable.com/security/research/tra-2020-71
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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