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Check: GEN003522

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN003522 (in versions v1 r14 through v1 r10)

Title

The kernel core dump data directory must have mode 0700 or less permissive. (Cat III impact)

Discussion

Kernel core dumps may contain the full contents of system memory at the time of the crash. As the system memory may contain sensitive information, it must be protected accordingly. If the mode of the kernel core dump data directory is more permissive than 0700, unauthorized users may be able to view or to modify kernel core dump data files.

Check Content

Determine the core file copy location. # sysdumpdev -l | grep "core dir" Determine the mode of the kernel core dump data directory. # ls -lLd < directory > If the mode is more permissive than 0700, this is a finding.

Fix Text

Change the mode of the kernel core dump data directory to 0700. # chmod 0700 < directory >

Additional Identifiers

Rule ID: SV-38863r1_rule

Vulnerability ID: V-22406

Group Title: GEN003522

Expert Comments

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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