CVE-2020-5801

high
New! CVE Severity Now Using CVSS v3

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

Description

An attacker can craft and send an OpenNamespace message to port 4241 with valid session-id that triggers an unhandled exception in CFTLDManager::HandleRequest function in RnaDaSvr.dll, resulting in process termination. Observed in FactoryTalk Linx 6.11. All versions of FactoryTalk Linx are affected.

References

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

Details

Source: MITRE

Published: 2020-12-29

Updated: 2020-12-30

Type: CWE-755

Risk Information

CVSS v2

Base Score: 5

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

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:rockwellautomation:factorytalk_linx:*:*:*:*:*:*:*:* versions up to 6.11 (inclusive)

Tenable Plugins

View all (1 total)

IDNameProductFamilySeverity
500442Rockwellautomation Factorytalk Improper Handling of Exceptional ConditionsTenable.otSCADA
high