Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to cause a memory leak on an affected device, which may cause the device to reload.
The following Stratix Industrial Switches are affected by this vulnerability in the Cisco Open Plug-n-Play agent:
An unauthenticated remote attacker could send invalid data to the Cisco Network Plug and Play agent (also referred to as the Cisco Open Plug-n-Play agent) causing a memory leak on the device, which could cause the device to reload.
Rockwell Automation reported this vulnerability to NCCIC.
Rockwell automation recommends users upgrade to FRN 15.2(6)E2a or later, which can be downloaded from the following page:
Rockwell Automation recommends users apply the following general guidelines:
For additional information, see Rockwell Automation’s security advisory, which can be found at the following link:
<https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1082686> (Login required)
Cisco’s product security disclosure is available at the following link: <https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-pnp-memleak>
NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
NCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Additional mitigation guidance and recommended practices are publicly available on the ICS-CERT website in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to NCCIC for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability.
For any questions related to this report, please contact the NCCIC at:
Toll Free: 1-888-282-0870
For industrial control systems cybersecurity information: http://ics-cert.us-cert.gov
or incident reporting: https://ics-cert.us-cert.gov/Report-Incident?
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