The SSH client must be configured to only use Message Authentication Codes (MACs) employing FIPS 140-2 approved cryptographic hash algorithms.

From AIX 6.1 Security Technical Implementation Guide

Part of GEN005512

Associated with IA controls: DCNR-1

Associated with: CCI-001453

SV-26756r1_rule The SSH client must be configured to only use Message Authentication Codes (MACs) employing FIPS 140-2 approved cryptographic hash algorithms.

Vulnerability discussion

DoD information systems are required to use FIPS 140-2 approved cryptographic hash functions.

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Fix text

Edit the SSH client configuration and remove any MACs other than hmac-sha1. If necessary, add a MACs line.

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