Rockwellautomation Factorytalk Allocation of Resources Without Limits or Throttling

medium Tenable.ot Plugin ID 500416
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

An attacker-controlled memory allocation size can be passed to the C++ new operator in the CServerManager::HandleBrowseLoadIconStreamRequest in messaging.dll. This can be done by sending a specially crafted message to 127.0.0.1:7153. Observed in FactoryTalk Linx 6.11. All versions of FactoryTalk Linx are affected.

Solution

Refer to vendor advisory for Security Updates

See Also

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

Plugin Details

Severity: Medium

ID: 500416

Version: 1.0

Type: local

Family: SCADA

Published: 8/10/2021

Updated: 8/10/2021

Risk Information

CVSS Score Source: CVE-2020-5806

CVSS v2

Risk Factor: Low

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:2.3:a:rockwellautomation:factorytalk_linx:*:*:*:*:*:*:*:*

Patch Publication Date: 12/29/2020

Vulnerability Publication Date: 12/29/2020

Reference Information

CVE: CVE-2020-5806