Rockwell Automation MicroLogix 1100 <= 16.0 and MicroLogix 1400 <= 21.003 Improper Authentication (ICSA-18-095-01)

high Nessus Network Monitor Plugin ID 720294

Synopsis

Rockwell Automation MicroLogix 1100 &lt;= 16.0 and MicroLogix 1400 &lt;= 21.003 are exploitable remotely because of the lack of proper authentication.

Description

A remote, unauthenticated attacker could send a specially crafted packet to the Ethernet port of an affected controller, which could cause denial of service, disclosure of sensitive information, communication loss, and modification of settings or ladder logic.

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

See Also

https://www.us-cert.gov/ics/advisories/ICSA-18-095-01

Plugin Details

Severity: High

ID: 720294

Family: SCADA

Published: 9/9/2019

Updated: 9/30/2019

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

Patch Publication Date: 4/5/2018

Vulnerability Publication Date: 4/5/2018

Reference Information

CVE: CVE-2017-12088