Red Hat Enterprise Linux 5 Security Technical Implementation Guide

The Red Hat Enterprise Linux 5 Security Technical Implementation Guide (V1 R18) 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

V1 · R18

CurrentPublished Fri Apr 28 2017

The "at" daemon must not execute programs in, or subordinate to, world-writable directories.

Red Hat Enterprise Linux 5 Security Technical Implementation Guide

Assessment Title

Rule Text

The "at" daemon must not execute programs in, or subordinate to, world-writable directories.

Description

Discussion Text

If "at" programs are located in, or subordinate, to world-writable directories, they become vulnerable to removal and replacement by malicious users or system intruders.

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

Objective

V-989

Rule

SV-37520r1_rule

Severity

medium

Rule Version

GEN003380

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

List any "at" jobs on the system.
Procedure:
# ls /var/spool/at

For each "at" job, determine which programs are executed by "at."
Procedure:
# more <at job file>

Check the directory containing each program executed by "at" for world-writable permissions.
Procedure:
# ls -la <at program file directory>

If "at" executes programs in world-writable directories, this is a finding.

Implementation Procedure

Fix Text

Remove the world-writable permission from directories containing programs executed by "at".

Procedure:
# chmod o-w <at program directory>

STIG check 568 of 571 in the Red Hat Enterprise Linux 5 STIG checklist

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