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Check: GEN005536

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN005536 (in versions v1 r14 through v1 r10)

Title

The SSH daemon must perform strict mode checking of home directory configuration files. (Cat II impact)

Discussion

If other users have access to modify user-specific SSH configuration files, they may be able to log into the system as another user.

Check Content

Check the SSH daemon configuration for the StrictModes setting. # grep -i StrictModes /etc/ssh/sshd_config | grep -v '^#' If the setting is present and set to "no", this is a finding. If the setting is not present or is set to "yes", this is not a finding.

Fix Text

Edit the /etc/sshd/sshd_config file and remove the StrictModes setting or change the value of the StrictModes setting to "yes".

Additional Identifiers

Rule ID: SV-40720r1_rule

Vulnerability ID: V-22485

Group Title: GEN005536

Expert Comments

Expert comments are only available to logged-in users.

CCIs

CCIs tied to check.

Number	Definition
CCI-000225	The organization employs the concept of least privilege, allowing only authorized accesses for users (and processes acting on behalf of users) which are necessary to accomplish assigned tasks in accordance with organizational missions and business functions.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
AC-6	Least Privilege