The /etc/shadow file must not have an extended ACL.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22340	GEN001430	SV-26441r2_rule	ECLP-1	Medium

Description
The /etc/shadow file contains the list of local system accounts. It is vital to system security and must be protected from unauthorized modification. The file also contains password hashes which must not be accessible to users other than root.

STIG	Date
HP-UX 11.31 Security Technical Implementation Guide	2016-12-20

Details

Check Text ( C-36357r4_chk )
For Trusted Mode: Check the TCB auth files and directories. # ls -lLd /tcb /tcb/files /tcp/files/auth # ls -lL /tcb/files/auth/[a-z,A-Z]/* If the permissions of any of the /tcb files and directories include a “+”, this is a finding. For SMSE: Check the /etc/shadow file. # ls -lL /etc/shadow If the /etc/shadow file permissions include a “+”, the file has an extended ACL, this is a finding.

Check Text ( C-36357r4_chk )

For Trusted Mode:
Check the TCB auth files and directories.
# ls -lLd /tcb /tcb/files /tcp/files/auth
# ls -lL /tcb/files/auth/[a-z,A-Z]/*

If the permissions of any of the /tcb files and directories include a “+”, this is a finding.

For SMSE:
Check the /etc/shadow file.
# ls -lL /etc/shadow

If the /etc/shadow file permissions include a “+”, the file has an extended ACL, this is a finding.

Fix Text (F-31693r3_fix)
For Trusted Mode: # chacl -z /tcb # chacl -z /tcb/files /tcb/files/auth # chacl -z /tcb/files/auth/[a-z]/* For SMSE: # chacl -z /etc/shadow