DISA STIGS Viewer

Ubuntu 24.04 LTS must be configured so that the "journalctl" command is not accessible by unauthorized users.

Overview

Finding ID Version Rule ID IA Controls Severity
V-270758 UBTU-24-700030 SV-270758r1066763_rule   Medium
Description
Any operating system providing too much information in error messages risks compromising the data and security of the structure, and content of error messages must be carefully considered by the organization. Organizations carefully consider the structure/content of error messages. The extent to which information systems are able to identify and handle error conditions is guided by organizational policy and operational requirements. Information that could be exploited by adversaries includes, for example, erroneous logon attempts with passwords entered by mistake as the username, mission/business information that can be derived from (if not stated explicitly by) information recorded, and personal information, such as account numbers, social security numbers, and credit card numbers.
STIG Date
Canonical Ubuntu 24.04 LTS Security Technical Implementation Guide 2025-05-16

Details

Check Text (C-74791r1066761_chk)
Verify the journalctl command has a permission set of "740" with the following command:

$ sudo find /usr/bin/journalctl -exec stat -c "%n %a" {} \;
/usr/bin/journalctl 740

If journalctl is not set to "740", this is a finding
Fix Text (F-74692r1066762_fix)
Configure journalctl to have a permission set of "740":

$ sudo chmod 740 /usr/bin/journalctl