The delay between login prompts following a failed login attempt must be at least 4 seconds.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

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

Associated with: CCI-002238

SV-38839r1_rule The delay between login prompts following a failed login attempt must be at least 4 seconds.

Vulnerability discussion

Enforcing a delay between successive failed login attempts increases protection against automated password guessing attacks.

Check content

Check the logindelay parameter. # more /etc/security/login.cfg OR #grep logindelay /etc/security/login.cfg | grep -v \* Verify the value of the logindelay variable is 4 or more in each stanza. If the value of logindelay is not 4 or more, this is a finding.

Fix text

Use vi or the chsec command to change the login delay time period. #chsec -f /etc/security/login.cfg -s default -a logindelay=4 OR # vi /etc/security/login.cfg Add logindelay = 4 to the default stanza.

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