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How to change SSH ciphers or MAC algorithms on Brocade FOS

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2,639
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Votes:
3
Category:
fabric-interconnect-and-management-switches
Specialty:
brocade
Last Updated:

Applies to

  • Brocade FOS v7.4.0 and above

Description

Security scanner application may report Fabric OS (FOS) vulnerability - 'Deprecated SSH Cryptographic Settings' or 'SSH Weak MAC Algorithms Enabled' along with following messages:

  • The remote SSH server is configured to allow weak encryption algorithms or no algorithm at all.
  • The remote SSH server is configured to use the Arcfour stream cipher or no cipher at all.
  • The remote SSH server is configured to allow MD5 and 96-bit MAC algorithms.
  • The remote SSH server is configured to allow either MD5 or 96-bit MAC algorithms, both of which are considered weak.

 

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