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Check: GEN008740

SUSE Linux Enterprise Server v11 for System z STIG: GEN008740 (in versions v1 r12 through v1 r9)

Title

The systems boot loader configuration file(s) must not have extended ACLs. (Cat II impact)

Discussion

File system extended ACLs provide access to files beyond what is allowed by the mode numbers of the files. If extended ACLs are present on the system's boot loader configuration file(s), these files may be vulnerable to unauthorized access or modification, which could compromise the system's boot process.

Check Content

Check the permissions of the file. # ls -lLd /etc/zipl.conf If the mode the file or directory contains a '+', an extended ACL is present. This is a finding.

Fix Text

Remove the extended ACL from the file. # setfacl --remove-all /etc/zipl.conf

Additional Identifiers

Rule ID: SV-46076r1_rule

Vulnerability ID: V-22585

Group Title: GEN008740

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