The system must require passwords to contain no more than three consecutive repeating characters.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

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

Associated with: CCI-000366

SV-38675r1_rule The system must require passwords to contain no more than three consecutive repeating characters.

Vulnerability discussion

To enforce the use of complex passwords, the number of consecutive repeating characters is limited. Passwords with excessive repeated characters may be more vulnerable to password-guessing attacks.

Check content

Check the maxrepeats setting. Procedure: # grep -i maxrepeats /etc/security/user OR # lsuser -a maxrepeats ALL If the maxrepeats setting is greater than 3, this is a finding.

Fix text

Use the chsec command to set maxrepeats to 3. # chsec -f /etc/security/user -s default -a maxrepeats=3 # chuser maxrepeats=3 < user id >

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.