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Ubuntu 24.04 LTS must generate system journal entries without revealing information that could be exploited by adversaries.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-270757UBTU-24-700020SV-270757r1184072_ruleCCI-001312medium
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.
STIGDate
Canonical Ubuntu 24.04 LTS Security Technical Implementation Guide2026-05-14

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

TDA-19Error Handling
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (19) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-17(1)Monitoring and Control
1.00
AC-6(9)Log Use of Privileged Functions
1.00
AU-10Non-repudiation
1.00
AU-12Audit Record Generation
1.00
AU-14(1)System Start-up
1.00
AU-3Content of Audit Records
1.00
AU-3(1)Additional Audit Information
1.00
AU-9Protection of Audit Information
1.00
CM-3(5)Automated Security Response
1.00
CM-5(1)Automated Access Enforcement and Audit Records
1.00

+9 more (top 10 by confidence shown)

CCI1 mapping
CCI-001312
1.00

Details

Check Text (C-270757r1184072_chk)

Verify the /run/log/journal and /var/log/journal directories have permissions set to "640" or less permissive with the following command: $ sudo find /run/log/journal /var/log/journal -type d -exec stat -c "%n %a" {} \; /run/log/journal 640 /var/log/journal 640 /var/log/journal/6a52424faa6e480ea5fc7346b9345792 640 If any output returned has a permission set greater than 640, this is a finding. Verify all files in the /run/log/journal and /var/log/journal directories have permissions set to "640" or less permissive with the following command: $ sudo find /run/log/journal /var/log/journal -type f -exec stat -c "%n %a" {} \; /var/log/journal/d5745ad455d34fb8b6f78be37c1fcd3e/system.journal 640 /var/log/journal/d5745ad455d34fb8b6f78be37c1fcd3e/user-1000@0005f97cd4a8c9b5a.journal~ 640 /var/log/journal/d5745ad455d34fb8b6f78be37c1fcd3e/system@0005f97cd2a1e0a7-d58b848af46813a4.journal~ 640 /var/log/journal/d5745ad455d34fb8b6f78be37c1fcd3e/system@0005f97cb900e501-55ea053b7f75ae1c.journal~ 640 /var/log/journal/d5745ad455d34fb8b6f78be37c1fcd3e/user-1000.journal 640 If any output returned has a permission set greater than "640", this is a finding.

Fix Text (F-74691r1184071_fix)

Configure the system to set the appropriate permissions to the files and directories used by the systemd journal. Create a drop-in file if it does not already exist with the following command: $ sudo vi /etc/tmpfiles.d/zzz-systemd-stig.conf Add or modify the following lines in the "/usr/lib/tmpfiles.d/zzz-systemd-stig.conf" file: z /run/log/journal 0640 root systemd-journal - - Z /run/log/journal/%m ~0640 root systemd-journal - - z /var/log/journal 0640 root systemd-journal - - z /var/log/journal/%m 0640 root systemd-journal - - z /var/log/journal/%m/system.journal 0640 root systemd-journal - - Note: Restart the system for these settings to take effect.