Oracle Linux 5 Security Technical Implementation Guide

The Oracle Linux 5 Security Technical Implementation Guide (V2 R1) has 571 STIG checks. New to STIG checklists? Read What is a STIG checklist?, CKL vs CKLB, and STIG vs SCAP benchmark.

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Severity

Version

V2 · R1

CurrentPublished Fri Jan 22 2021

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

Oracle Linux 5 Security Technical Implementation Guide

Assessment Title

Rule Text

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

Description

Discussion Text

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.

New to STIG checklists? Read What is a STIG checklist? and CKL vs CKLB.

Objective

V-218359

Rule

SV-218359r603259_rule

Severity

medium

Rule Version

GEN002300

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

Check the system for world-writable device files.

Procedure:
# find / -perm -2 -a \( -type b -o -type c \) -exec ls -ld {} \;

Ask the SA to identify any device files used for backup purposes.

If any device file(s) used for backup are writable by users other than root or the designated backup user, this is a finding.

Implementation Procedure

Fix Text

Use the chmod command to remove the world-writable bit from the backup device files. 

Procedure:
# chmod o-w <back device filename>

Document all changes.

STIG check 197 of 571 in the Oracle Linux 5 STIG checklist

← Previous · V-218358Device files and directories must only be writable by users with a system account or as configured by the vendor.Next · V-218360 →Audio devices must have mode 0660 or less permissive.