Title

The kernel core dump data directory must be group-owned by root. (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 kernel core dump data directory is not group-owned by a system group, the core dumps contained in the directory may be subject to unauthorized access.

Check Content

Determine the kernel core dump data directory. # dumpadm | grep "Savecore directory" OR # grep DUMPADM_SAVDIR /etc/dumpadm.conf Check ownership of the core dump data directory. # ls -l [savecore directory] If the directory is not group-owned by root, this is a finding.

Fix Text

Change the group-owner of the kernel core dump data directory. # chgrp root [kernel core dump data directory]

Additional Identifiers

Rule ID: SV-226883r603265_rule

Vulnerability ID: V-226883

Group Title: SRG-OS-000480

Expert Comments

CCIs tied to check.

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