title: Rockwell Automation FactoryTalk Linx Vulnerable to Denial-of-Service and Information Disclosure
description:
FactoryTalk Linx, in the Rockwell Automation PanelView Plus, allows an unauthenticated threat actor to read data from memory via crafted malicious packets. Sending a size larger than the buffer size results in leakage of data from memory resulting in an information disclosure. If the size is large enough, it causes communications over the common industrial protocol to become unresponsive to any type of packet, resulting in a denial-of-service to FactoryTalk Linx over the common industrial protocol.
problem types: CWE-20 Improper Input Validation
affected:
{
defaultStatus: unaffected
product: FactoryTalk Linx
vendor: Rockwell Automation
versions:
status: affected, version: 6.20
status: affected, version: 6.30
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 8.2
baseSeverity: HIGH
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions:
*  Install the security patches for the respective versions, referencing  BF29637 - Patch: Hardening of the FactoryTalk Linx communications service for MobileView to authenticate and block improperly sized files, FactoryTalk Linx 6.20, 6.30 https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1140402 .