The SUSE operating system must generate audit records for all uses of the chfn command.

From SLES 12 Security Technical Implementation Guide

Associated with: CCI-000130 CCI-000169 CCI-000172 CCI-002884

SV-92027r2_rule The SUSE operating system must generate audit records for all uses of the chfn command.

Vulnerability discussion

Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.Satisfies: SRG-OS-000037-GPOS-00015, SRG-OS-000062-GPOS-00031, SRG-OS-000392-GPOS-00172, SRG-OS-000462-GPOS-00206, SRG-OS-000471-GPOS-00215

Check content

Verify the SUSE operating system generates an audit record for all uses of the "chfn" command. Check that the following command call is being audited by performing the following command on the system rules in "/etc/audit/audit.rules": # sudo grep -i chfn /etc/audit/audit.rules -a always,exit -F -arch=b32 path=/usr/bin/chfn -F perm=x -F auid>=500 -F auid!=4294967295 -k privileged-chfn -a always,exit -F -arch=b64 path=/usr/bin/chfn -F perm=x -F auid>=500 -F auid!=4294967295 -k privileged-chfn If the command does not return any output, this is a finding.

Fix text

Configure the SUSE operating system to generate an audit record for all uses the "chfn" command. Add or update the following rule to "/etc/audit/audit.rules": -a always,exit -F -arch=b32 path=/usr/bin/chfn -F perm=x -F auid>=500 -F auid!=4294967295 -k privileged-chfn -a always,exit -F -arch=b64 path=/usr/bin/chfn -F perm=x -F auid>=500 -F auid!=4294967295 -k privileged-chfn The audit daemon must be restarted for any changes to take effect.

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