Check: TSS0-OS-000020
IBM z/OS TSS STIG:
TSS0-OS-000020
(in versions v9 r2 through v8 r8)
Title
IBM z/OS required SMF data record types must be collected. (Cat II impact)
Discussion
Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create an account. Auditing account creation actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems may be integrated with enterprise level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. Satisfies: SRG-OS-000004-GPOS-00004, SRG-OS-000037-GPOS-00015, SRG-OS-000038-GPOS-00016, SRG-OS-000039-GPOS-00017, SRG-OS-000040-GPOS-00018, SRG-OS-000041-GPOS-00019, SRG-OS-000042-GPOS-00021, SRG-OS-000064-GPOS-00033, SRG-OS-000458-GPOS-00203, SRG-OS-000461-GPOS-00205, SRG-OS-000462-GPOS-00206, SRG-OS-000463-GPOS-00207, SRG-OS-000465-GPOS-00209, SRG-OS-000466-GPOS-00210, SRG-OS-000467-GPOS-00211, SRG-OS-000468-GPOS-00212, SRG-OS-000470-GPOS-00214, SRG-OS-000471-GPOS-00215, SRG-OS-000471-GPOS-00215, SRG-OS-000471-GPOS-00216, SRG-OS-000472-GPOS-00217, SRG-OS-000473-GPOS-00218, SRG-OS-000474-GPOS-00219, SRG-OS-000475-GPOS-00220, SRG-OS-000476-GPOS-00221, SRG-OS-000477-GPOS-00222, SRG-OS-000239-GPOS-00089, SRG-OS-000240-GPOS-00090, SRG-OS-000241-GPOS-00091, SRG-OS-000255-GPOS-00096, SRG-OS-000365-GPOS-00152, SRG-OS-000348-GPOS-00136, SRG-OS-000303-GPOS-00120, SRG-OS-000327-GPOS-00127, SRG-OS-000392-GPOS-00172
Check Content
Refer to IEASYS00 member in SYS1.PARMLIB Concatenation. Determine proper SMFPRMxx member. If all of the required SMF record types identified below are collected, this is not a finding. IBM SMF Records to be collected at a minimum: 0 (00) - IPL 6 (06) - External Writer/ JES Output Writer/ Print Services Facility (PSF) 7 (07) - [SMF] Data Lost 14 (0E) - INPUT or RDBACK Data Set Activity 15 (0F) - OUTPUT, UPDAT, INOUT, or OUTIN Data Set Activity 17 (11) - Scratch Data Set Status 18 (12) - Rename Non-VSAM Data Set Status 24 (18) - JES2 Spool Offload 25 (19) - JES3 Device Allocation 26 (1A) - JES Job Purge 30 (1E) - Common Address Space Work 32 (20) - TSO/E User Work Accounting 41 (29) - DIV Objects and VLF Statistics 42 (2A) - DFSMS statistics and configuration 43 (2B) - JES Start 45 (2D) - JES Withdrawal/Stop 47 (2F) - JES SIGNON/Start Line (BSC)/LOGON 48 (30) - JES SIGNOFF/Stop Line (BSC)/LOGOFF 49 (31) - JES Integrity 52 (34) - JES2 LOGON/Start Line (SNA) 53 (35) - JES2 LOGOFF/Stop Line (SNA) 54 (36) - JES2 Integrity (SNA) 55 (37) - JES2 Network SIGNON 56 (38) - JES2 Network Integrity 57 (39) - JES2 Network SYSOUT Transmission 58 (3A) - JES2 Network SIGNOFF 60 (3C) - VSAM Volume Data Set Updated 61 (3D) - Integrated Catalog Facility Define Activity 62 (3E) - VSAM Component or Cluster Opened 64 (40) - VSAM Component or Cluster Status 65 (41) - Integrated Catalog Facility Delete Activity 66 (42) - Integrated Catalog Facility Alter Activity 80 (50) - RACF/TOP SECRET Processing 81 (51) - RACF Initialization 82 (52) - ICSF Statistics 83 (53) - RACF Audit Record For Data Sets 90 (5A) - System Status 92 (5C) except subtypes 10, 11 - OpenMVS File System Activity 102 (66) - DATABASE 2 Performance 103 (67) - IBM HTTP Server 110 (6E) - CICS/ESA Statistics 118 (76) - TCP/IP Statistics 119 (77) - TCP/IP Statistics 199 (C7) - TSOMON 230 (E6) - ACF2 or as specified in ACFFDR (vendor-supplied default is 230) 231 (E7) - TSS logs security events under this record type
Fix Text
Ensure that SMF recording options are consistent with those outlined below. IBM SMF Records to be collected at a minimum: 0 (00) - IPL 6 (06) - External Writer/ JES Output Writer/ Print Services Facility (PSF) 7 (07) - [SMF] Data Lost 14 (0E) - INPUT or RDBACK Data Set Activity 15 (0F) - OUTPUT, UPDAT, INOUT, or OUTIN Data Set Activity 17 (11) - Scratch Data Set Status 18 (12) - Rename Non-VSAM Data Set Status 24 (18) - JES2 Spool Offload 25 (19) - JES3 Device Allocation 26 (1A) - JES Job Purge 30 (1E) - Common Address Space Work 32 (20) - TSO/E User Work Accounting 41 (29) - DIV Objects and VLF Statistics 42 (2A) - DFSMS statistics and configuration 43 (2B) - JES Start 45 (2D) - JES Withdrawal/Stop 47 (2F) - JES SIGNON/Start Line (BSC)/LOGON 48 (30) - JES SIGNOFF/Stop Line (BSC)/LOGOFF 49 (31) - JES Integrity 52 (34) - JES2 LOGON/Start Line (SNA) 53 (35) - JES2 LOGOFF/Stop Line (SNA) 54 (36) - JES2 Integrity (SNA) 55 (37) - JES2 Network SIGNON 56 (38) - JES2 Network Integrity 57 (39) - JES2 Network SYSOUT Transmission 58 (3A) - JES2 Network SIGNOFF 60 (3C) - VSAM Volume Data Set Updated 61 (3D) - Integrated Catalog Facility Define Activity 62 (3E) - VSAM Component or Cluster Opened 64 (40) - VSAM Component or Cluster Status 65 (41) - Integrated Catalog Facility Delete Activity 66 (42) - Integrated Catalog Facility Alter Activity 80 (50) - RACF/TOP SECRET Processing 81 (51) - RACF Initialization 82 (52) - ICSF Statistics 83 (53) - RACF Audit Record For Data Sets 90 (5A) - System Status 92 (5C) except subtypes 10, 11 - OpenMVS File System Activity 102 (66) - DATABASE 2 Performance 103 (67) - IBM HTTP Server 110 (6E) - CICS/ESA Statistics 118 (76) - TCP/IP Statistics 119 (77) - TCP/IP Statistics 199 (C7) - TSOMON 230 (E6) - ACF2 or as specified in ACFFDR (vendor-supplied default is 230) 231 (E7) - TSS logs security events under this record type
Additional Identifiers
Rule ID: SV-223998r998499_rule
Vulnerability ID: V-223998
Group Title: SRG-OS-000004-GPOS-00004
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000018 |
Automatically audit account creation actions. |
| CCI-000130 |
Ensure that audit records contain information that establishes what type of event occurred. |
| CCI-000131 |
Ensure that audit records containing information that establishes when the event occurred. |
| CCI-000132 |
Ensure that audit records containing information that establishes where the event occurred. |
| CCI-000133 |
Ensure that audit records containing information that establishes the source of the event. |
| CCI-000134 |
Ensure that audit records containing information that establishes the outcome of the event. |
| CCI-000135 |
Generate audit records containing the organization-defined additional information that is to be included in the audit records. |
| CCI-000172 |
Generate audit records for the event types defined in AU-2 c that include the audit record content defined in AU-3. |
| CCI-001403 |
Automatically audit account modification actions. |
| CCI-001404 |
Automatically audit account disabling actions. |
| CCI-001405 |
Automatically audit account removal actions. |
| CCI-001487 |
Ensure that audit records containing information that establishes the identity of any individuals, subjects, or objects/entities associated with the event. |
| CCI-001814 |
The Information system supports auditing of the enforcement actions. |
| CCI-001875 |
Provide an audit reduction capability that supports on-demand audit review and analysis. |
| CCI-002130 |
Automatically audit account enabling actions. |
| CCI-002234 |
Log the execution of privileged functions. |
| CCI-002884 |
Log organization-defined audit events for nonlocal maintenance and diagnostic sessions. |
| CCI-003938 |
Automatically generate audit records of the enforcement actions. |
Controls
| Number | Title |
|---|---|
| AC-2(4) |
Automated Audit Actions |
| AC-6(9) |
Auditing Use of Privileged Functions |
| AU-3 |
Content of Audit Records |
| AU-3(1) |
Additional Audit Information |
| AU-7 |
Audit Reduction and Report Generation |
| AU-12 |
Audit Generation |
| CM-5(1) |
Automated Access Enforcement / Auditing |
| MA-4(1) |
Auditing and Review |