Rockwell Automation Stratix SSL Padding Oracle On Downgraded Legacy Encryption (CVE-2014-3566)

low Tenable OT Security Plugin ID 501806

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A vulnerability was publicly announced in the SSLv3 protocol when using a block cipher in CBC mode. The vulnerability exists because the block cipher padding is not covered by the message authentication code and exposes users to a potential man-in-the-middle attack that relies on padding oracles. Because weaknesses have previously been discovered in stream ciphers such as RC4 in the SSLv3 protocol, the whole protocol should now be considered deprecated. This vulnerability is related to the protocol itself and is not specific to a particular SSLv3 implementation.

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Solution

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

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:

http://compatibility.rockwellautomation.com/Pages/MultiProductDownload.aspx?famID=15

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.

https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1041191

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

Plugin Details

Severity: Low

ID: 501806

Version: 1.3

Type: remote

Family: Tenable.ot

Published: 11/15/2023

Updated: 4/22/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2014-3566

CVSS v3

Risk Factor: Low

Base Score: 3.4

Temporal Score: 3.1

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

Temporal Vector: CVSS:3.0/E:P/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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/14/2014

Vulnerability Publication Date: 10/14/2014

Reference Information

CVE: CVE-2014-3566

CWE: 755

Detections

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