Create and schedule a new correlation search based on Personally Identifiable Information Detected, but isolate the search to the test server hosts and assign a risk modifier alert type only.See Whitelist events in Administer Splunk Enterprise Security for more information. Isolate test servers from the existing correlation searches using a whitelist.You can do this by creating a correlation search that assigns a risk modifier instead of creating a notable event, when the correlation matches hosts that serve as test servers. Rather than ignoring or suppressing notable events generated by test servers, you can create specific rules to monitor those servers differently. Perhaps 192.0.2.2 is a test server, so this behavior is less interesting than if the same behavior is observed in the production environment. Using the Risk Analysis dashboard to view the risk for this host shows a risk score of 480.0 in the Risk Score by Object and Most Active Sources panels for the last seven days by default.Īudit - Personally Identifiable Information Detection - Rule The correlation search for Personally Identifiable Information Detected is creating five notable events per day for that system. Host 192.0.2.2 is a system that is generating several notable events. It is an event that will add to the risk score of a device or user object. It is an event that must be assigned, reviewed, and closed. When a match is found, an alert is generated as a notable event, a risk modifier, or both. Correlation searches search for a conditional match to a question. An object represents a system, a user, or an unspecified other.Įnterprise Security uses correlation searches to correlate machine data with asset and identity data, which comprises the devices and user objects in a network environment. How Splunk Enterprise Security assigns risk scoresĪ risk score is a single metric that shows the relative risk of a device or user object in the network environment over time. Enterprise Security indexes all risk as events in the risk index. The Risk Analysis dashboard displays these risk scores and other risk-related information. Splunk Enterprise Security classifies a device as a system, a user as a user, and unrecognized devices or users as other.Įnterprise Security uses risk analysis to take note of and calculate the risk of small events and suspicious behavior over time to your environment. In Splunk Enterprise versions below 9.1.0.2, 9.0.5.1, and 8.2.11.2, a malicious actor can inject American National Standards Institute (ANSI) escape codes into Splunk log files that, when a vulnerable terminal application reads them, can potentially result in possible code execution in the vulnerable application.Analyze risk in Splunk Enterprise SecurityĪ risk score is a single metric that shows the relative risk of a device or user in the network environment over time. Record truncated, showing 500 of 997 characters. The attack requires the attacker to have secure shell (SSH) access to the instance and use a terminal program that supports a certain feature set to execute the attack successfully. In Splunk Enterprise versions below 9.0.5, 8.2.11, and 8.1.14, an attacker can use a specially crafted web URL in their browser to cause log file poisoning. For example, users can copy the malicious file from the Splunk Enterprise instance and read it on their local machine.ĬVE Modified by Splunk Inc. The indirect impact on the Splunk Enterprise instance can vary significantly depending on the permissions in the vulnerable terminal application and where and how the user reads the malicious log file. The vulnerability does not directly affect Splunk Enterprise. The vulnerability does not affect Splunk Cloud Platform instances. This attack requires a user to use a terminal application that supports the translation of ANSI escape codes, to read the malicious log file locally in the vulnerable terminal, and to perform additional user interaction to exploit. In Splunk Enterprise versions below 9.1.0.2, 9.0.5.1, and 8.2.11.2, a malicious actor can inject American National Standards Institute (ANSI) escape codes into Splunk log files that, when a vulnerable terminal application reads them, can potentially result in possible code execution in the vulnerable application. It is awaiting reanalysis which may result in further changes to the information provided. This vulnerability has been modified since it was last analyzed by the NVD.
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