STIGQter: STIG Summary: IBM AIX 7.x Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 23 Apr 2021:

AIX must set inactivity time-out on login sessions and terminate all login sessions after 10 minutes of inactivity.

DISA Rule

SV-215320r508663_rule

Vulnerability Number

V-215320

Group Title

SRG-OS-000279-GPOS-00109

Rule Version

AIX7-00-003003

Severity

CAT II

CCI(s)

• CCI-000879 - The organization terminates sessions and network connections when nonlocal maintenance is completed.
• CCI-002361 - The information system automatically terminates a user session after organization-defined conditions or trigger events requiring session disconnect.
• CCI-001133 - The information system terminates the network connection associated with a communications session at the end of the session or after an organization-defined time period of inactivity.

Weight

10

Fix Recommendation

Add or update the following line in the "/etc/profile" file:
readonly TMOUT=600; readonly TIMEOUT=600; export TMOUT TIMEOUT

Check Contents

Check if "TMOUT" and "TIMEOUT" environment variables are set to "600" (in seconds) in "/etc/profile" file:

# grep -E " TMOUT|TIMEOUT" /etc/profile
readonly TMOUT=600; readonly TIMEOUT=600; export TMOUT TIMEOUT

If they are not set in "/etc/profile" file, are commented out, or their values are greater than "600", this is a finding.

Vulnerability Number

V-215320

Documentable

False

Rule Version

AIX7-00-003003

Severity Override Guidance

Check if "TMOUT" and "TIMEOUT" environment variables are set to "600" (in seconds) in "/etc/profile" file:

# grep -E " TMOUT|TIMEOUT" /etc/profile
readonly TMOUT=600; readonly TIMEOUT=600; export TMOUT TIMEOUT

If they are not set in "/etc/profile" file, are commented out, or their values are greater than "600", this is a finding.

Check Content Reference

M

Target Key

4012

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