The system must use a FIPS 140-2 approved cryptographic hashing algorithm for generating account password hashes.

From Red Hat Enterprise Linux 5 Security Technical Implementation Guide

Associated with IA controls: IAIA-2, DCNR-1, IAIA-1

Associated with: CCI-000803

SV-26313r1_rule The system must use a FIPS 140-2 approved cryptographic hashing algorithm for generating account password hashes.

Vulnerability discussion

Systems must employ cryptographic hashes for passwords using the SHA-2 family of algorithms or FIPS 140-2 approved successors. The use of unapproved algorithms may result in weak password hashes more vulnerable to compromise.

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Fix text

Change the default password algorithm. # authconfig --passalgo=sha512 --update

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