SLES-12-020240 - The SUSE operating system must generate audit records for all uses of the privileged functions - setuid arch=b32

Information

Misuse of privileged functions, either intentionally or unintentionally by authorized users, or by unauthorized external entities that have compromised information system accounts, is a serious and ongoing concern and can have significant adverse impacts on organizations. Auditing the use of privileged functions is one way to detect such misuse and identify the risk from insider threats and the advanced persistent threat.

Satisfies: SRG-OS-000327-GPOS-00127, SRG-OS-000337-GPOS-00129, SRG-OS-000348-GPOS-00136, SRG-OS-000349-GPOS-00137, SRG-OS-000350-GPOS-00138, SRG-OS-000351-GPOS-00139, SRG-OS-000352-GPOS-00140, SRG-OS-000353-GPOS-00141, SRG-OS-000354-GPOS-00142, SRG-OS-000358-GPOS-00145, SRG-OS-000359-GPOS-00146, SRG-OS-000365-GPOS-00152

Solution

Configure the operating system to audit the execution of privileged functions.

Add or update the following rules in '/etc/audit/rules.d/audit.rules':

-a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -k setuid
-a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -k setuid
-a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -k setgid
-a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -k setgid

The audit daemon must be restarted for the changes to take effect.

# sudo systemctl restart auditd.service

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_SLES_12_V2R6_STIG.zip

Item Details

Category: ACCESS CONTROL, AUDIT AND ACCOUNTABILITY, CONFIGURATION MANAGEMENT

References: 800-53|AC-6(9), 800-53|AU-7a., 800-53|AU-7b., 800-53|AU-8b., 800-53|AU-12(3), 800-53|CM-5(1), CAT|III, CCI|CCI-001814, CCI|CCI-001875, CCI|CCI-001877, CCI|CCI-001878, CCI|CCI-001879, CCI|CCI-001880, CCI|CCI-001881, CCI|CCI-001882, CCI|CCI-001889, CCI|CCI-001914, CCI|CCI-002234, Rule-ID|SV-217209r603262_rule, STIG-ID|SLES-12-020240, STIG-Legacy|SV-92019, STIG-Legacy|V-77323, Vuln-ID|V-217209

Plugin: Unix

Control ID: e051a31de7cad7f449b15ee004e2badb0a63fa2bdab6789168b9a62c011dbc0e