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Check: GEN003505

SUSE Linux Enterprise Server v11 for System z STIG: GEN003505 (in versions v1 r12 through v1 r9)

Title

The centralized process core dump data directory must not have an extended ACL. (Cat III impact)

Discussion

Process core dumps contain the memory in use by the process when it crashed. Any data the process was handling may be contained in the core file, and it must be protected accordingly. If the process core dump data directory has an extended ACL, unauthorized users may be able to view or to modify sensitive information contained in any process core dumps in the directory.

Check Content

Check the defined directory for process core dumps. Procedure: Check the defined directory for process core dumps. # cat /proc/sys/kernel/core_pattern|xargs -n1 -IPATTERN dirname PATTERN Check the permissions of the directory. # ls -lLd <core file directory> If the permissions include a '+', the file has an extended ACL. If the file has an extended ACL and it has not been documented with the IAO, this is a finding.

Fix Text

Remove the extended ACL from the file. # setfacl --remove-all <core file directory>

Additional Identifiers

Rule ID: SV-46155r1_rule

Vulnerability ID: V-22403

Group Title: GEN003505

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