Check: UBTU-20-010122
Canonical Ubuntu 20.04 LTS STIG:
UBTU-20-010122
(in versions v1 r12 through v1 r1)
Title
The Ubuntu operating system must be configured so that audit log files are not read or write-accessible by unauthorized users. (Cat II impact)
Discussion
Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit operating system activity. Satisfies: SRG-OS-000057-GPOS-00027, SRG-OS-000058-GPOS-00028
Check Content
Verify that the audit log files have a mode of "0600" or less permissive. Determine where the audit logs are stored with the following command: $ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.log Using the path of the directory containing the audit logs, determine if the audit log files have a mode of "0600" or less by using the following command: $ sudo stat -c "%n %a" /var/log/audit/* /var/log/audit/audit.log 600 If the audit log files have a mode more permissive than "0600", this is a finding.
Fix Text
Configure the audit log files to have a mode of "0600" or less permissive. Determine where the audit logs are stored with the following command: $ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.log Using the path of the directory containing the audit logs, configure the audit log files to have a mode of "0600" or less permissive by using the following command: $ sudo chmod 0600 /var/log/audit/*
Additional Identifiers
Rule ID: SV-238245r653910_rule
Vulnerability ID: V-238245
Group Title: SRG-OS-000057-GPOS-00027
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000162 |
The information system protects audit information from unauthorized access. |
CCI-000163 |
The information system protects audit information from unauthorized modification. |
Controls
Number | Title |
---|---|
AU-9 |
Protection Of Audit Information |