Check: GEN005800
SUSE Linux Enterprise Server v11 for System z STIG:
GEN005800
(in versions v1 r12 through v1 r9)
Title
All Network File System (NFS) exported system files and system directories must be owned by root. (Cat II impact)
Discussion
Failure to give ownership of sensitive files or directories to root provides the designated owner and possible unauthorized users with the potential to access sensitive information or change system configuration which could weaken the system's security posture.
Check Content
Check if the nfs-kernel-server package is installed. It contains the exportfs command as well as the nfsserver process itself. # rpm –q nfs-kernel-server If the package is not installed, this check does not apply. If it is installed, check for NFS exported file systems. Procedure: # cat /etc/exports For each file system displayed, check the ownership. # ls -lLa <exported file system path> If the files and directories are not owned by root, this is a finding.
Fix Text
Change the ownership of exported file systems not owned by root. Procedure: # chown root <path>
Additional Identifiers
Rule ID: SV-46121r1_rule
Vulnerability ID: V-931
Group Title: GEN005800
Expert Comments
CCIs
| 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
| Number | Title |
|---|---|
| AC-6 |
Least Privilege |