II - Mission Support Sensitive
Rules and Groups employed by this XCCDF Profile
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SRG-APP-000610-AU-000050
Group -
Splunk Enterprise must use TLS 1.2 and SHA-2 or higher cryptographic algorithms.
Without cryptographic integrity protections, information can be altered by unauthorized users without detection. To protect the integrity of the authenticator and authentication mechanism used for...Rule High Severity -
SRG-APP-000141-AU-000090
Group -
When Splunk Enterprise is distributed over multiple servers, each server must be configured to disable non-essential capabilities.
Applications are capable of providing a wide variety of functions and services. Some of the functions and services may not be necessary to support the configuration. This becomes more of an issue i...Rule Medium Severity -
SRG-APP-000118-AU-000100
Group -
Splunk Enterprise installation directories must be secured.
If audit data were to become compromised, competent forensic analysis and discovery of the true source of potentially malicious system activity would be difficult if not impossible to achieve. In a...Rule Medium Severity -
SRG-APP-000516-AU-000340
Group -
Splunk Enterprise forwarders must be configured with Indexer Acknowledgement enabled.
To prevent the loss of data during transmission, a handshake acknowledgement between the sender and the recipient may need configured.Rule Low Severity -
SRG-APP-000389-AU-000180
Group -
Splunk Enterprise idle session timeout must be set to not exceed 15 minutes.
Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When applications provide the capability to change security roles or escalate the fu...Rule Low Severity -
SRG-APP-000295-AU-000190
Group -
Splunk Enterprise idle session timeout must be set to not exceed 15 minutes.
Automatic session termination after a period of inactivity addresses the potential for a malicious actor to exploit the unattended session. Closing any unattended sessions reduces the attack surfac...Rule Medium Severity -
SRG-APP-000291-AU-000200
Group -
Splunk Enterprise must notify the system administrator (SA) and information system security officer (ISSO) when account events are received (creation, deletion, modification, disabling).
Once an attacker establishes access to an application, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create a...Rule Low Severity -
SRG-APP-000291-AU-000200
Group -
Splunk Enterprise must notify analysts of applicable events for Tier 2 CSSP and JRSS only.
Sending notifications or populating dashboards are ways to monitor and alert on applicable events and allow analysts to mitigate issues. Tier 2 CSSP and JRSS analysts perform higher-level analysis...Rule Low Severity -
SRG-APP-000065-AU-000240
Group -
Splunk Enterprise must enforce the limit of 3 consecutive invalid logon attempts by a user during a 15 minute time period.
By limiting the number of failed login attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute forcing, is reduced. Limits are imposed by locking the a...Rule Medium Severity -
SRG-APP-000503-AU-000280
Group -
Splunk Enterprise must be configured with a successful/unsuccessful logon attempts report.
The SIEM or Central Log Server is the mitigation method for most of the other STIGs applied to an organization. Robust alerting and reporting is a key feature in any incident response plan. The ab...Rule Medium Severity -
SRG-APP-000095-AU-000050
Group -
The System Administrator (SA) and Information System Security Officer (ISSO) must configure the retention of the log records based on the defined security plan.
If authorized individuals do not have the ability to modify auditing parameters in response to a changing threat environment, the organization may not be able to respond effectively and important f...Rule Low Severity
Node 2
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