Detections
Analytics

Rockwell Automation/Allen-Bradley MicroLogix 1100 Controllers Denial of Service (ICSA-17-138-03)

high Nessus Network Monitor Plugin ID 720131

Synopsis

An Improper Input Validation issue was discovered in Rockwell Automation MicroLogix 1100 controllers that could allow a denial of service condition.

Description

An Improper Input Validation issue was discovered in Rockwell Automation MicroLogix 1100 controllers 1763-L16BWA, 1763-L16AWA, 1763-L16BBB, and 1763-L16DWD. A remote, unauthenticated attacker could send a single, specially crafted Programmable Controller Communication Commands (PCCC) packet to the controller that could potentially cause the controller to enter a DoS condition.

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

See Also

https://ics-cert.us-cert.gov/advisories/ICSA-17-138-03,http://www.securityfocus.com/bid/99622

Plugin Details

Severity: High

ID: 720131

Family: SCADA

Published: 5/8/2019

Updated: 9/30/2019

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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:N/A:H

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

Vulnerability Information

Patch Publication Date: 7/18/2017

Vulnerability Publication Date: 7/18/2017

Reference Information

CVE: CVE-2017-7924

BID: 99622