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

Global initialization files must contain the mesg -n or mesg n commands.

Oracle Linux 5 Security Technical Implementation Guide

Assessment Title

Rule Text

Global initialization files must contain the mesg -n or mesg n commands.

Description

Discussion Text

If the "mesg -n" or "mesg n" command is not placed into the system profile, messaging can be used to cause a Denial of Service attack.

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

Objective

V-218329

Rule

SV-218329r603259_rule

Severity

low

Rule Version

GEN001780

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

Check global initialization files for the presence of "mesg -n" or "mesg n".

Procedure:
# grep "mesg" etc/bashrc /etc/csh.cshrc /etc/csh.login /etc/csh.logout /etc/environment /etc/ksh.kshrc /etc/profile /etc/suid_profile /etc/profile.d/* 

If no global initialization files contain "mesg -n" or "mesg n", this is a finding.

Implementation Procedure

Fix Text

Edit /etc/profile or another global initialization script, and add the "mesg -n" command.

STIG check 167 of 571 in the Oracle Linux 5 STIG checklist

← Previous · V-218328All global initialization files must be group-owned by root, sys, bin, other, system, or the system default.Next · V-218330 →All skeleton files (typically those in /etc/skel) must have mode 0644 or less permissive.