The Red Hat Enterprise Linux operating system must be configured so that users must re-authenticate for privilege escalation.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-71949	RHEL-07-010350	SV-86573r3_rule		Medium

Description
Without re-authentication, users may access resources or perform tasks for which they do not have authorization. When operating systems provide the capability to 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

STIG	Date
Red Hat Enterprise Linux 7 Security Technical Implementation Guide	2018-11-28

Details

Check Text ( C-72181r5_chk )
Verify the operating system requires users to reauthenticate for privilege escalation. Check the configuration of the "/etc/sudoers" and "/etc/sudoers.d/" files with the following command: # grep -i authenticate /etc/sudoers /etc/sudoers.d/ If any uncommented line is found with a "!authenticate" tag, this is a finding.

Fix Text (F-78301r3_fix)
Configure the operating system to require users to reauthenticate for privilege escalation. Check the configuration of the "/etc/sudoers" file with the following command: # visudo Remove any occurrences of "!authenticate" tags in the file. Check the configuration of the "/etc/sudoers.d/" files with the following command: # grep -i authenticate /etc/sudoers /etc/sudoers.d/ Remove any occurrences of "!authenticate" tags in the file(s).

Fix Text (F-78301r3_fix)

Configure the operating system to require users to reauthenticate for privilege escalation.

Check the configuration of the "/etc/sudoers" file with the following command:

# visudo
Remove any occurrences of "!authenticate" tags in the file.

Check the configuration of the "/etc/sudoers.d/*" files with the following command:

# grep -i authenticate /etc/sudoers /etc/sudoers.d/*
Remove any occurrences of "!authenticate" tags in the file(s).