Rockwell Automation Stratix 5900 (CVE-2015-0642)

high Tenable OT Security Plugin ID 501820


The remote OT asset is affected by a vulnerability.


Devices running Cisco IOS Software or IOS XE Software contain vulnerabilities within the Internet Key Exchange (IKE) version 2 subsystem that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerabilities are due to how an affected device processes certain malformed IKEv2 packets. An attacker could exploit these vulnerabilities by sending malformed IKEv2 packets to an affected device to be processed. A successful exploit could allow the attacker to cause a reload of the affected device or excessive consumption of resources that would lead to a DoS condition. IKEv2 is automatically enabled on devices running Cisco IOS and Cisco IOS XE Software when the Internet Security Association and Key Management Protocol (ISAKMP) is enabled. These vulnerabilities can only be triggered by sending malformed IKEv2 packets.

This plugin only works with Tenable.ot.
Please visit for more information.


The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at

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

Rockwell Automation encourages users of the affected versions to update to the latest available software versions addressing the associated risk, and including improvements to further harden the software and enhance its resilience against similar malicious attacks. Users can find the latest firmware version by searching for their device at the following web site:

Additional precautions and risk mitigation strategies specific to these types of attacks are recommended in the Rockwell Automation security release. When possible, multiple strategies should be implemented simultaneously.

Please also refer to Cisco’s security advisories (linked below) for additional workarounds and details for these vulnerabilities.

See Also

Plugin Details

Severity: High

ID: 501820

Version: 1.3

Type: remote

Family: Tenable.ot

Published: 11/15/2023

Updated: 12/14/2023

Supported Sensors: Tenable OT Security

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2015-0642


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: 3/26/2015

Vulnerability Publication Date: 3/26/2015

Reference Information

CVE: CVE-2015-0642

CWE: 755