Rockwell Automation RSLinx Classic <= 4.10.00 Stack-Based Buffer Overflow

critical Nessus Network Monitor Plugin ID 720260

Synopsis

Rockwell Automation RSLinx Classic is affected by a stack-based buffer overflow vulnerability.

Description

An input validation issue (CWE-121) exists in a .dll file of RSLinx Classic where the data in a Forward Open service request is passed to a fixed size buffer, allowing an attacker to exploit a stack-based buffer overflow condition.

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

See Also

https://ics-cert.us-cert.gov/advisories/ICSA-19-064-01,https://www.tenable.com/security/research/tra-2019-11

Plugin Details

Severity: Critical

ID: 720260

Family: SCADA

Published: 6/4/2019

Updated: 9/30/2019

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Patch Publication Date: 3/5/2019

Vulnerability Publication Date: 3/5/2019

Reference Information

CVE: CVE-2019-6553