The /etc/passwd file must not contain password hashes.

From Red Hat Enterprise Linux 5 Security Technical Implementation Guide

Associated with IA controls: ECLP-1

Associated with: CCI-000201

SV-37381r2_rule The /etc/passwd file must not contain password hashes.

Vulnerability discussion

If password hashes are readable by non-administrators, the passwords are subject to attack through lookup tables or cryptographic weaknesses in the hashes.

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Fix text

Migrate /etc/passwd password hashes to /etc/shadow. # pwconv

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