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Check: GEN001890

SUSE Linux Enterprise Server v11 for System z STIG: GEN001890 (in versions v1 r12 through v1 r9)

Title

Local initialization files must not have extended ACLs. (Cat II impact)

Discussion

Local initialization files are used to configure the user's shell environment upon login. Malicious modification of these files could compromise accounts upon logon.

Check Content

Check user home directories for local initialization files with extended ACLs. # for HOMEDIR in $(cut -d: -f6 /etc/passwd); do find ${HOMEDIR} -type f -name '\.*' | xargs ls -ld | grep '\+'; done 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 <local initialization file with extended ACL>

Additional Identifiers

Rule ID: SV-45156r1_rule

Vulnerability ID: V-22362

Group Title: GEN001890

Expert Comments

Expert comments are only available to logged-in users.

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