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V-228569

CAT II (Medium)

The Oracle Linux operating system must be configured so users must re-authenticate for privilege escalation.

Rule ID

SV-228569r1050789_rule

STIG

Oracle Linux 7 Security Technical Implementation Guide

Version

V3R5

CCIs

CCI-002038 CCI-004895

Discussion

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

Check Content

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

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).