← Back to Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide

V-282650

CAT II (Medium)

The TOSS 5 /etc/shadow- file must have mode 0000 or less permissive to prevent unauthorized access.

Rule ID

SV-282650r1200930_rule

STIG

Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-000366

Discussion

The "/etc/shadow-" file is a backup file of "/etc/shadow", and as such, contains the list of local system accounts and password hashes. Protecting this file is critical for system security.

Check Content

Verify the "/etc/shadow-" file has mode "0000" using the following command:

$ sudo stat -c "%a %n" /etc/shadow-

0 /etc/shadow-

If a value of "0" is not returned, this is a finding.

Fix Text

Change the mode of the file "/etc/shadow-" to "0000" using the following command:

$ sudo chmod 0000 /etc/shadow-