Device files used for backup must only be readable and/or writable by root or the backup user.

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Device files used for backup must only be readable and/or writable by root or the backup user.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-925	GEN002300	SV-38506r1_rule	ECCD-1 ECCD-2	Medium

Description
System backups could be accidentally or maliciously overwritten and destroy the ability to recover the system if a compromise should occur. Unauthorized users could also copy system files.

STIG	Date
HP-UX 11.23 Security Technical Implementation Guide	2013-03-28

Details

Check Text ( C-36416r1_chk )
Check the system for device files read/write enabled for users other than root or the backup user. Example: # find / \( -perm -0020 -o -perm -0040 -o -perm -0002 -o -perm -0004 \) -a \( -type b -o -type c -o -type n \) -exec ls -ld {} \; If any device files used for backup are read/write enabled for users other than root, this is a finding.

Fix Text (F-31754r1_fix)
Use the chmod command to remove the read/write bit(s) from the backup device files. # chmod o-r # chmod o-w # chmod g-r # chmod g-w Document all changes.