Detections
Analytics

Rockwell Automation/Allen-Bradley MicroLogix 1400 Series B FRN < 21.2 Multiple Vulnerabilities (ICSA-18-095-01)

high Nessus Network Monitor Plugin ID 720102

Synopsis

Rockwell Automation/Allen-Bradley MicroLogix 1400 Series B FRN &lt; 21.2 are affected by multiple vulnerabilities.

Description

Rockwell Automation/Allen-Bradley MicroLogix 1400 Series B FRN < 21.2 are affected by multiple vulnerabilities:
 - An exploitable insufficient resource pool vulnerability exists in the session communication functionality of Allen Bradley Micrologix 1400 Series B Firmware 21.2 and before. A specially crafted stream of packets can cause a flood of the session resource pool resulting in legitimate connections to the PLC being disconnected. An attacker can send unauthenticated packets to trigger this vulnerability.
 - =An exploitable denial of service vulnerability exists in the Ethernet functionality of the Allen Bradley Micrologix 1400 Series B FRN 21.2 and below. A specially crafted packet can cause a device power cycle resulting in a fault state and deletion of ladder logic. An attacker can send one unauthenticated packet to trigger this vulnerability
 - A specially crafted packet can cause a device fault resulting in halted operations. An attacker can send an unauthenticated packet to trigger this vulnerability.
 - A specially crafted snmp-set request, when sent without associated firmware flashing snmp-set commands, can cause a device power cycle resulting in downtime for the device. An attacker can send one packet to trigger this vulnerability.
 - A specially crafted packet can cause a file write resulting in a new program being written to the memory module. An attacker can send an unauthenticated packet to trigger this vulnerability.

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

See Also

https://ics-cert.us-cert.gov/advisories/ICSA-18-095-01,https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0445

Plugin Details

Severity: High

ID: 720102

Family: SCADA

Published: 5/8/2019

Updated: 10/9/2019

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, CVE-2017-12089, CVE-2017-12090, CVE-2017-12092, CVE-2017-12093