Towards a separate ipmi domain
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Towards a separate IPMI Domain. Stefan L üders CERN Computer Security Officer AI 2014/1/23. About IPMI No-Security. IPMI/BMC is the most direct way to access physical hosts BMCs are full fledged computers themselves today IPMI/BMC interfaces insufficiently protected:

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Towards a separate IPMI Domain

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Towards a separate ipmi domain

Towards a separate IPMI Domain

Stefan LüdersCERN Computer Security Officer

AI 2014/1/23


About ipmi no security

About IPMI No-Security

  • IPMI/BMC is the most direct way to access physical hosts

  • BMCs are full fledged computers themselves today

  • IPMI/BMC interfaces insufficiently protected:

    • New firmware only irregularly provided

    • Old BMC are difficult to upgrade

    • Prompt patching, in any case, difficult

  • 2013: Fixing severe IPMI/BMC vulnerabilities took 5 months


A cc mgmt domain

A CC MGMT Domain

  • We have already a dedicated network domain for IPMI,PDUS, KVM connections, …

  • …in the barn and at Wigner

  • …to come to CC machine room

  • …transparent to GPN/LCG

  • Proposal:

  • Restrict access on Feb 5th

  • Any objections?

  • What misses to be “trusted”?(e.g. IPMI no_contact)

“Trusted” Bypass List:

IT CC AGILE IPMI

IT CC CONSOLE SERVICE

IT CC LXADM WITH SSH

IT DRUPAL IPMI

IT LINUXSOFT IPMI

HTTPS


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