Rockwell has Fix for Stratix, ArmorStratix Holes

Thursday, April 4, 2019 @ 04:04 PM gHale

Rockwell Automation recommends users upgrade to new versions to mitigate resource management errors and improper input validation vulnerabilities in its Stratix 5400/5410/5700/8000/8300, ArmorStratix 5700, according to a report with NCCIC.

Successful exploitation of these remotely exploitable vulnerabilities could result in a denial-of-service condition or time synchronization issues across the network via reloading the device, a buffer overflow, or memory exhaustion.

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The following products suffer from the issues, which Rockwell self-reported:
• Allen-Bradley Stratix 5400: All versions 15.2(6)E0a and prior
• Allen-Bradley Stratix 5410: All versions 15.2(6)E0a and prior
• Allen-Bradley Stratix 5700: All versions 15.2(6)E0a and prior
• Allen-Bradley ArmorStratix 5700: All versions 15.2(6)E0a and prior
• Allen-Bradley Stratix 8000: All versions 15.2(6)E0a and prior
• Allen-Bradley Stratix 8300: All versions prior to 15.2(4)EA7

In one vulnerability, sending a specially crafted open shortest path first version 3 (OSPFv3) packet could allow an unauthenticated, adjacent attacker to cause an affected device to reload, resulting in a denial-of-service condition.

CVE-2018-0466 is the case number assigned to this vulnerability, which has a CVSS v3 base score of 7.4.

In addition, sending a malformed HTTP packet in the web framework of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a buffer overflow condition on an affected device, resulting in a denial-of-service condition.

CVE-2018-0470 is the case number assigned to this vulnerability, which has a CVSS v3 base score of 8.6.

Also, sending a custom precision time protocol (PTP) packet to or through an affected device could allow an unauthenticated remote attacker to cause a denial-of-service condition of PTP, which may result in time synchronization issues across the network.

CVE-2018-0473 is the case number assigned to this vulnerability, which has a CVSS v3 base score of 7.5.

Additionally, sending a malicious IPv6 packet to or through the affected device could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a denial-of-service condition.

CVE-2018-0467 is the case number assigned to this vulnerability, which has a CVSS v3 base score of 8.6.

Also, sending a high rate of Cisco discovery protocol packets to an affected device could allow an unauthenticated, adjacent attacker to exhaust memory on an affected device, resulting in a denial-of-service condition.

CVE-2018-15373 is the case number assigned to this vulnerability, which has a CVSS v3 base score of 7.4.

The products see use mainly in the critical manufacturing, energy, and Water and Wastewater Systems sectors. They also see action on a global basis.

No known public exploits specifically target these vulnerabilities. However, an attacker with low skill level could leverage the vulnerabilities.

Rockwell automation recommends users upgrade to the following versions or later:
FRN 15.2(6)E2a:
• Allen-Bradley Stratix 5400
• Allen-Bradley Stratix 5410
• Allen-Bradley Stratix 5700
• Allen-Bradley ArmorStratix 5700
• Allen-Bradley Stratix 8000

FRN 15.2(4)EA7:
• Allen-Bradley Stratix 8300

Click here to download any updates.

Rockwell Automation recommends users apply the following general guidelines:
• Utilize proper network infrastructure controls, such as firewalls, to help ensure that requests from unauthorized sources are blocked and the controls are isolated from the business network.
• Consult the product documentation for specific features, such as access control lists and deep pack inspection, which may be used to block unauthorized changes, etc.
• Block all traffic to EtherNet/IP, or other CIP protocol-based devices, from outside the manufacturing zone by blocking or restricting access to TCP and UDP Port 2222 and Port 44818 using proper network infrastructure controls, such as firewalls, UTM devices, or other security appliances. For more information on TCP/UDP ports used by Rockwell Automation Products, see Knowledgebase Article ID 898270 (Login required).
• When remote access is required, use secure methods, such as virtual private networks (VPNs), recognizing that VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize that VPN is only as secure as the connected devices.

For additional information, see Rockwell Automation’s security advisory. (Login required)



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