Rockwell Automation Stratix Cisco IOS and IOS XE Software AAA Login Denial of Service (CVE-2016-6393)

high Tenable OT Security Plugin ID 501818

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A vulnerability in the Authentication, Authorization, and Accounting (AAA) service for remote Secure Shell Host (SSH) connections to the device for Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause the vulnerable device to reload. The vulnerability is due to an error log message when a remote SSH connection to the device fails AAA authentication. An attacker could exploit this vulnerability by attempting to authenticate to the targeted device. An exploit could allow the attacker to cause a denial of service (DoS) condition.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Rockwell Automation has provided a new firmware version, Version 15.6.3, to mitigate these vulnerabilities.

See Rockwell Automation's security advisory for more information.

Plugin Details

Severity: High

ID: 501818

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 11/15/2023

Updated: 12/18/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2016-6393

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

CPE: cpe:/h:rockwellautomation:allen-bradley_stratix_5900_industrial_managed_ethernet_switch

Required KB Items: Tenable.ot/Rockwell

Exploit Ease: No known exploits are available

Patch Publication Date: 10/5/2016

Vulnerability Publication Date: 10/5/2016

Reference Information

CVE: CVE-2016-6393

CWE: 755

ICSA: 17-094-04

Detections

Analytics