SV-234853r1050789: The SUSE operating system must reauthenticate users when changing authenticators, roles, or escalating privileges. | SUSE Linux Enterprise Server 15 STIG SCAP Benchmark

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Assessment Title

Rule Text

The SUSE operating system must reauthenticate users when changing authenticators, roles, or escalating privileges.

Description

Discussion Text

Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When the SUSE operating system provides the capability to change user authenticators, change security roles, or escalate a functional capability, it is critical the user reauthenticate. Satisfies: SRG-OS-000373-GPOS-00156, SRG-OS-000373-GPOS-00157, SRG-OS-000373-GPOS-00158

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

IA Controls

NIST SP 800-53

Not mappedCCI-004895Not mappedCCI-002038

References

DPMS Target SUSE Linux Enterprise Server 15 DISA DPMS Target SUSE Linux Enterprise Server 15 5274

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.sles15:def:124
# The SUSE operating system must reauthenticate users when changing authenticators, roles, or escalating privileges.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# textfilecontent54_object (textfilecontent54_test)
test_1() {
  ! ( grep -Pq '^(?!#).*\s+(\!\s*authenticate|NOPASSWD).*$' '/etc/sudoers' &>/dev/null )
}
# textfilecontent54_object (textfilecontent54_test)
test_2() {
  ! ( grep -rqP --include='*' '^(?!#).*\s+(\!\s*authenticate|NOPASSWD).*$' '/etc/sudoers.d' &>/dev/null )
}

if ( test_1 && test_2 ); then
  echo "PASS"
else
  echo "FAIL"
fi

Remediation

Configure the SUSE operating system to remove any occurrence of "NOPASSWD" or "!authenticate" found in the "/etc/sudoers" file. If the system does not use passwords for authentication, the "NOPASSWD" tag may exist in the file.