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Check: GEN006290

SUSE Linux Enterprise Server v11 for System z STIG: GEN006290 (in versions v1 r12 through v1 r9)

Title

The /etc/news/hosts.nntp.nolimit file must not have an extended ACL. (Cat II impact)

Discussion

File system extended ACLs provide access to files beyond what is allowed by the mode numbers of the files. Excessive permissions on the hosts.nntp.nolimit file may allow unauthorized modification which could lead to Denial of Service to authorized users or provide access to unauthorized users.

Check Content

Check the permissions for "/etc/news/hosts.nntp.nolimit". # ls -lL /etc/news/hosts.nntp.nolimit 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 /etc/news/hosts.nntp.nolimit

Additional Identifiers

Rule ID: SV-45894r1_rule

Vulnerability ID: V-22503

Group Title: GEN006290

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