SV-253097r991588: TOSS must enforce a delay of at least four seconds between logon prompts following a failed logon attempt. | Tri-Lab Operating System Stack (TOSS) 4 STIG SCAP Benchmark

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Assessment Title

Rule Text

TOSS must enforce a delay of at least four seconds between logon prompts following a failed logon attempt.

Description

Discussion Text

Limiting the number of logon attempts over a certain time interval reduces the chances that an unauthorized user may gain access to an account.

How this relates to the STIG checklist: STIG vs SCAP benchmark.

IA Controls

NIST SP 800-53

Not mappedCCI-000366

References

DPMS Target TOSS 4 DISA DPMS Target TOSS 4 5469

SCC Automation Reference

The reconstructed evaluation script behind this rule's OVAL check(s) — every module a compound check combines, with this rule's own concrete values and DISA's SCC tool's real per-module mechanism curated from static teardown of SCC releases.

#!/bin/bash
# Reconstructed from oval:mil.disa.stig.toss4os:def:253097
# TOSS must enforce a delay of at least four seconds between logon prompts following a failed logon attempt.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# /etc/login.defs: FAIL_DELAY = 4 or greater
# textfilecontent54_object (textfilecontent54_test)
test_1() {
  [ "$(sed -En 's/^\s*FAIL_DELAY\s+(\d+)\s*$/\1/p' '/etc/login.defs')" -ge 4 ]
}

if test_1; then
  echo "PASS"
else
  echo "FAIL"
fi

Assessment Script Powered by AISandbox-executed

A standalone Shell script to assess this control automatically. Review before running it in your environment.

Syntax-checked and actually executed in an isolated sandbox (not the real system this checks) — confirmed to run without errors.

#!/bin/sh
# OVAL Definition: oval:mil.disa.stig.toss4os:def:253097

if [ ! -f "/etc/login.defs" ]; then echo "PASS"; exit 0; fi
if grep -qE "^\\s*FAIL_DELAY\\s+(\\d+)\\s*$" /etc/login.defs; then
  FAIL_DELAY=$(grep -oE "\\s*FAIL_DELAY\\s+(\\d+)\\s*$" /etc/login.defs | awk '{print $2}')
  if [ "$FAIL_DELAY" -ge "4" ]; then echo "PASS"; exit 0; fi
fi
echo "FAIL"; exit 1

Remediation

Configure the operating system to enforce a delay of at least four seconds between logon prompts following a failed console logon attempt.

Modify the "/etc/login.defs" file to set the "FAIL_DELAY" parameter to "4" or greater:

FAIL_DELAY 4