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

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 7.4

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 10

Temporal Score: 8.7

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

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

Reference Information

CVE: CVE-2019-6553