SLEM 5 must not have duplicate User IDs (UIDs) for interactive users.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-261361	SLEM-05-411075	SV-261361r996530_rule		Medium

Description
To ensure accountability and prevent unauthenticated access, interactive users must be identified and authenticated to prevent potential misuse and compromise of the system. Interactive users include organizational employees or individuals the organization deems to have equivalent status of employees (e.g., contractors). Interactive users (and processes acting on behalf of users) must be uniquely identified and authenticated to all accesses, except for the following: 1) Accesses explicitly identified and documented by the organization. Organizations document specific user actions that can be performed on the information system without identification or authentication; and 2) Accesses that occur through authorized use of group authenticators without individual authentication. Organizations may require unique identification of individuals in group accounts (e.g., shared privilege accounts) or for detailed accountability of individual activity.

Description

To ensure accountability and prevent unauthenticated access, interactive users must be identified and authenticated to prevent potential misuse and compromise of the system. Interactive users include organizational employees or individuals the organization deems to have equivalent status of employees (e.g., contractors). Interactive users (and processes acting on behalf of users) must be uniquely identified and authenticated to all accesses, except for the following: 1) Accesses explicitly identified and documented by the organization. Organizations document specific user actions that can be performed on the information system without identification or authentication; and 2) Accesses that occur through authorized use of group authenticators without individual authentication. Organizations may require unique identification of individuals in group accounts (e.g., shared privilege accounts) or for detailed accountability of individual activity.

STIG	Date
SUSE Linux Enterprise Micro (SLEM) 5 Security Technical Implementation Guide	2024-06-04

Details

Check Text ( C-65090r995948_chk )
Verify SLEM 5 contains no duplicate UIDs for interactive users with the following command: > awk -F ":" 'list[$3]++{print $1, $3}' /etc/passwd If output is produced, this is a finding.

Fix Text (F-64998r995949_fix)
Configure SLEM 5 to contain no duplicate UIDs for interactive users. Edit the file "/etc/passwd" and provide each interactive user account that has a duplicate UID with a unique UID.