August 15, 2018 4:55PM BST August 15, 2018 3:55PM UTC
[Investigating] As of 09am 15th August 2018, Node4 have been aware of the discovery of a new “speculative execution side-channel" type vulnerabilities within Intel processors. Called L1 Terminal Fault (L1TF) or "Foreshadow", this vulnerability concerns processors with SMT technology which could allow malicious code running on one thread to access data from the other thread's L1 cache within a single core.
Of the 3 discovered variants only L1FT VVM could affect Node4 Cloud services. L1FT / Foreshadow vulnerability is extremely complex to implement and only a proof of concept , developed in the laboratory, validated its existence. While there is currently no single fix for the vulnerabilities, a number of vendors have released suggested mitigations and remediation(s). As these are released, we’ll assess, test, coordinate and deploy accordingly across our environment. We will communicate to affected customers if actions that would impact their environments are required.
Node4 takes security of its clients and its own infrastructure extremely seriously and work closely with our partners, manufacturers and publishers, to improve the security of our infrastructure every day.
This complex and evolving situation will be monitored by Node4 Security Operations Centre to ensure our customers’ environments are protected, and we’ll do that in the least impactful manner possible.
Node4 Technical Support
February 21, 2019 10:00PM - February 22, 2019 6:00AM GMT February 21, 2019 10:00PM - February 22, 2019 6:00AM UTC
N4Cloud Northampton, HCS
On Thursday 21st February 2019, Node4 Engineers will be carrying out work to replace failed hardware in the Northampton ACI Cloud platform, due to issues seen with degraded SSD components housed in the Nexus switches.
Change Window - Thursday 21st February 22:00 – Friday 22nd February 06:00
No downtime is expected, however services will be considered “At Risk” for the duration of the window.
Updates will be posted to N4Status during this planned maintenance.
Support & Feedback
Our network operations engineers will closely monitor the work and will do everything possible to minimise any inconvenience to you. If you have any problems with your platform after this time, or if you have any questions regarding the maintenance at any point, please call Technical Support at 0845 123 2229 or visit node4.co.uk/support.
While it is important for Node4 to perform maintenance such as this to ensure the quality of our network, we do everything possible to minimise any inconvenience to our customers. We appreciate your patience and welcome any feedback.
Node4 Technical Support