Local initialization files must not have extended ACLs.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22362	GEN001890	SV-38739r1_rule	ECLP-1	Medium

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

STIG	Date
AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE	2018-09-18

Details

Check Text ( C-37172r1_chk )
Check user home directories for local initialization files with extended ACLs. Procedure: # cat /etc/passwd \| cut -f 6,6 -d ":" \| xargs -n1 -IDIR ls -le DIR/.login DIR/.cshrc DIR/.logout DIR/.profile DIR/.bash_profile DIR/.bashrc DIR/.bash_logout DIR/.env DIR/.dtprofile DIR/.dispatch DIR/.emacs DIR/.exrc Procedure: #aclget / and check if extended permissions are disabled. If extended permissions are not disabled, this is a finding.

Check Text ( C-37172r1_chk )

Check user home directories for local initialization files with extended ACLs.

Procedure:
# cat /etc/passwd | cut -f 6,6 -d ":" | xargs -n1 -IDIR ls -le DIR/.login DIR/.cshrc DIR/.logout DIR/.profile DIR/.bash_profile DIR/.bashrc DIR/.bash_logout DIR/.env DIR/.dtprofile DIR/.dispatch DIR/.emacs DIR/.exrc

Procedure:
#aclget / and check if extended permissions are disabled. If extended permissions are not disabled, this is a finding.

Fix Text (F-32454r1_fix)
Remove the extended ACL from the local initialization file(s) and disable extended permissions. #acledit /