STIGQter: STIG Summary: IBM DB2 V10.5 LUW Security Technical Implementation Guide Version: 1 Release: 4 Benchmark Date: 25 Oct 2019:

DB2 must provide audit record generation capability for DoD-defined auditable events within all DBMS/database components.

DISA Rule

SV-89111r1_rule

Vulnerability Number

V-74437

Group Title

SRG-APP-000089-DB-000064

Rule Version

DB2X-00-000600

Severity

CAT II

CCI(s)

• CCI-000169 - The information system provides audit record generation capability for the auditable events defined in AU-2 a. at organization-defined information system components.

Weight

10

Fix Recommendation

Define an audit policy using the CREATE AUDIT POLICY SQL statement:
DB2> CREATE AUDIT POLICY <DB audit policy name> CATEGORIES AUDIT STATUS BOTH, SYSADMIN STATUS BOTH, SECMAINT STATUS BOTH, VALIDATE STATUS BOTH, CHECKING STATUS BOTH, CONTEXT STATUS BOTH ERROR TYPE AUDIT

To modify an existing audit policy, replace "CREATE" with "ALTER" in the preceding statement. Only the categories explicitly named in the statement will be affected. In this case, the changes take effect immediately.

If CREATE was used above, apply the policy created above to the database:
DB2> AUDIT DATABASE USING POLICY <DB audit policy name>

Check Contents

To meet these requirements, at the minimum AUDIT, CHECKING, CONTEXT, SECMAINT, SYSADMIN, and VALIDATE category auditing need to be implemented at the database level.

Run the following SQL statement to ensure that an audit policy is defined upon the database:
DB2> SELECT AUDITPOLICYNAME, AUDITPOLICYID
FROM SYSCAT.AUDITUSE
WHERE OBJECTTYPE IN (' ')

If no rows are returned, this is a finding.

Using the AUDITPOLICYID from the query above find the details of the audit policy.
DB2> SELECT AUDITPOLICYNAME, AUDITSTATUS, CHECKINGSTATUS, CONTEXTSTATUS, SECMAINTSTATUS, SYSADMINSTATUS, VALIDATESTATUS, ERRORTYPE AS ERRORTYPE
FROM SYSCAT.AUDITPOLICIES
WHERE AUDITPOLICYID = <audit policy ID>

If the values for AUDITSTATUS, CHECKINGSTATUS, CONTEXTSTATUS, SECMAINTSTATUS, SYSMADMINSTATUS and VALIDATESTATUS are not 'B' (Both) or ERRORTYPE is not 'A' (Audit), this is a finding.

Vulnerability Number

V-74437

Documentable

False

Rule Version

DB2X-00-000600

Severity Override Guidance

To meet these requirements, at the minimum AUDIT, CHECKING, CONTEXT, SECMAINT, SYSADMIN, and VALIDATE category auditing need to be implemented at the database level.

Run the following SQL statement to ensure that an audit policy is defined upon the database:
DB2> SELECT AUDITPOLICYNAME, AUDITPOLICYID
FROM SYSCAT.AUDITUSE
WHERE OBJECTTYPE IN (' ')

If no rows are returned, this is a finding.

Using the AUDITPOLICYID from the query above find the details of the audit policy.
DB2> SELECT AUDITPOLICYNAME, AUDITSTATUS, CHECKINGSTATUS, CONTEXTSTATUS, SECMAINTSTATUS, SYSADMINSTATUS, VALIDATESTATUS, ERRORTYPE AS ERRORTYPE
FROM SYSCAT.AUDITPOLICIES
WHERE AUDITPOLICYID = <audit policy ID>

If the values for AUDITSTATUS, CHECKINGSTATUS, CONTEXTSTATUS, SECMAINTSTATUS, SYSMADMINSTATUS and VALIDATESTATUS are not 'B' (Both) or ERRORTYPE is not 'A' (Audit), this is a finding.

Check Content Reference

M

Target Key

3161

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