Check: UBTU-18-010244
Canonical Ubuntu 18.04 LTS STIG:
UBTU-18-010244
(in versions v2 r14 through v2 r9)
Title
The Ubuntu operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/passwd. (Cat II impact)
Discussion
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-000476-GPOS-00221, SRG-OS-000239-GPOS-00089, SRG-OS-000240-GPOS-00090, SRG-OS-000241-GPOS-00091, SRG-OS-000303-GPOS-00120, SRG-OS-000458-GPOS-00203, SRG-OS-000463-GPOS-00207, SRG-OS-000004-GPOS-00004
Check Content
Verify the Ubuntu operating system generates audit records for all account creations, modifications, disabling, and termination events that affect /etc/passwd. Check the currently configured audit rules with the following command: # sudo auditctl -l | grep passwd -w /etc/passwd -p wa -k usergroup_modification If the command does not return a line that matches the example or the line is commented out, this is a finding. Note: The '-k' allows for specifying an arbitrary identifier and the string after it does not need to match the example output above.
Fix Text
Configure the Ubuntu operating system to generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/passwd. Add or update the following rule to "/etc/audit/rules.d/stig.rules": -w /etc/passwd -p wa -k usergroup_modification Note: The "root" account must be used to view/edit any files in the /etc/audit/rules.d/ directory. In order to reload the rules file, issue the following command: # sudo augenrules --load
Additional Identifiers
Rule ID: SV-219220r853372_rule
Vulnerability ID: V-219220
Group Title: SRG-OS-000476-GPOS-00221
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000018 |
The information system automatically audits account creation actions. |
| CCI-000172 |
The information system generates audit records for the events defined in AU-2 d. with the content defined in AU-3. |
| CCI-001403 |
The information system automatically audits account modification actions. |
| CCI-001404 |
The information system automatically audits account disabling actions. |
| CCI-001405 |
The information system automatically audits account removal actions. |
| CCI-002130 |
The information system automatically audits account enabling actions. |