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For search tips, read article S16165.

Limiting ciphers for the ssh server. (Bug #37654)

Products:

SteelHead (Appliance), SteelCentral Controller for SteelHead (Central Management Console)

Fixed in Version:

RBT SH 5.5.0c, RBT SH 5.0.6, RBT SH 5.0.6, RBT SH 5.0.6, RBT SH 4.1.8a, RBT SH 5.5.1, RBT SH 4.1.9, RBT SH 4.1.9, RBT CMC 5.0.4

Last Modified:

2014-03-12

Summary

Fix:

Added "ssh server allowed-ciphers *" command to allow limiting ciphers for the ssh server.  This allows limiting ciphers to those which do not have the vulnerability found in CBC ciphers (i.e. user can set it to allow only aes128-ctr, aes192-ctr, and aes256-ctr).  New appliances will default to allowing only aes*-ctr ciphers for the ssh server; upgraded appliances will retain the previous settings (which by default included all of those supported by the ssh server).

Recommendation:

Upgrade to patched version if applicable.

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