Sixnet Switches get Fix

Thursday, February 23, 2017 @ 04:02 PM gHale

Red Lion Controls and AutomationDirect released new firmware to fix a use of hard-coded cryptographic keys vulnerability in its Sixnet-Managed Industrial Switches and STRIDE-Managed Ethernet Switches, according to a report with ICS-CERT.

Successful exploitation of the hard-coded cryptographic key vulnerabilities could result in loss of data confidentiality, integrity, and availability. Mark Cross of RIoT Solutions identified the remotely exploitable vulnerabilities.

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A hard-coded cryptographic key vulnerability ended up identified. Vulnerable versions of Stride-Managed Ethernet switches and Sixnet-Managed Industrial switches use hard-coded HTTP SSL/SSH keys for secure communication. Because these keys cannot regenerate by the users, all products use the same key. The attacker could disrupt communication or compromise the system.

CVE-2017-9335 is the case number assigned to this vulnerability, which has a CVSS v3 base score of 10.

The products see use in the critical manufacturing sector. The products also see action on a global basis.

No known public exploits specifically target these vulnerabilities. However, an attacker would require a low skill level.

The following Red Lion Controls Sixnet-Managed Industrial Switches suffer from the issue:
• Sixnet-Managed Industrial Switches running firmware Version 5.0.196 and prior.

The following AutomationDirect STRIDE-Managed Ethernet Switch models, manufactured by Red Lion Controls, suffer from the vulnerability:
• Stride-Managed Ethernet Switches running firmware Version 5.0.190 and prior.

Red Lion Controls released SLX firmware Version 5.3.174 to address the hard-coded cryptographic keys issue. Red Lion Controls recommends updating to SLX firmware Version 5.3.174.

Automation Direct recommends updating to Stride Managed Ethernet firmware Version 5.3.174.

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