Detections
Analytics

Rockwell Automation CompactLogix <= v30.014 Uncontrolled Resource Consumption or Stack-based Buffer Overflow (ICSA-19-120-01)

critical Nessus Network Monitor Plugin ID 720278

Synopsis

Rockwell Automation/Allen-Bradley CompactLogix 5370 L1, L2 and L3 controllers including CompactLogix GuardLogix could allow a remote attacker to render the web server unavailable and/or place the controller in a major non-recoverable faulted state.

Description

An attacker could send a crafted HTTP/HTTPS request to render the web server unavailable and/or lead to remote code execution caused by a stack-based buffer overflow vulnerability. A cold restart would be required to recover the system. An attacker could also send crafted SMTP packets to cause a denial-of-service condition where the controller enters a major non-recoverable faulted state (MNRF).

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

See Also

https://www.us-cert.gov/ics/advisories/ICSA-19-120-01

Plugin Details

Severity: Critical

ID: 720278

Family: SCADA

Published: 9/24/2019

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: 4/30/2019

Vulnerability Publication Date: 4/30/2019

Reference Information

CVE: CVE-2019-10952