Check: GEN000540
AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE:
GEN000540
(in versions v1 r14 through v1 r10)
Title
Users must not be able to change passwords more than once every 24 hours. (Cat II impact)
Discussion
The ability to change passwords frequently facilitates users reusing the same password. This can result in users effectively never changing their passwords. This would be accomplished by users changing their passwords when required and then immediately changing it to the original value.
Check Content
Check the minage field for each user. # /usr/sbin/lsuser -a minage ALL If the minage field is less than 1 for any user, this is a finding.
Fix Text
Use SMIT or the chsec command to set the minimum password age to 1 week. # chsec -f /etc/security/user -s default -a minage=1 # chsec -f /etc/security/user -s <user id> -a minage=1 OR # smitty chuser
Additional Identifiers
Rule ID: SV-38768r1_rule
Vulnerability ID: V-1032
Group Title: GEN000540
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000198 |
The information system enforces minimum password lifetime restrictions. |
Controls
Number | Title |
---|---|
IA-5 (1) |
Password-Based Authentication |