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All uses of the open command must be audited.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-72125 | RHEL-07-030510 | SV-86749r3_rule | Medium |
| Description |
|---|
| Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000458-GPOS-00203, SRG-OS-000461-GPOS-00205, SRG-OS-000392-GPOS-00172 |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 7 Security Technical Implementation Guide | 2017-12-14 |
Details
| Check Text ( C-72357r5_chk ) |
|---|
| Verify the operating system generates audit records when successful/unsuccessful attempts to use the "open" command occur. Check the file system rules in "/etc/audit/audit.rules" with the following commands: Note: The output lines of the command are duplicated to cover both 32-bit and 64-bit architectures. Only the lines appropriate for the system architecture must be present. # grep -iw open /etc/audit/audit.rules -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=4294967295 -k access -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=4294967295 -k access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=4294967295 -k access -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=4294967295 -k access If there are no audit rules defined for the “open” command, this is a finding. If the output does not produce a rule containing “-F exit=-EPERM”, this is a finding. If the output does not produce a rule containing “-F exit=-EACCES”, this is a finding. |
| Fix Text (F-78477r5_fix) |
|---|
| Configure the operating system to generate audit records when successful/unsuccessful attempts to use the "open" command occur. Add or update the following rule in "/etc/audit/rules.d/audit.rules": Note: The rules are duplicated to cover both 32-bit and 64-bit architectures. Only the lines appropriate for the system architecture must be configured. -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=4294967295 -k access -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=4294967295 -k access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=4294967295 -k access -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=4294967295 -k access The audit daemon must be restarted for the changes to take effect. |