Sensitive Information Disclosure in Discover Splunk Observability Cloud app for Splunk Enterprise

Description

In Splunk Enterprise versions below 10.2.1 and 10.0.4, and Splunk Cloud Platform versions below 10.2.2510.5, 10.1.2507.16, and 10.0.2503.12, a low-privileged user that does not hold the “admin” or “power” Splunk roles could retrieve the Observability Cloud API access token through the Discover Splunk Observability Cloud app due to improper access control.

This vulnerability does not affect Splunk Enterprise versions below 9.4.9 and 9.3.10 because the Discover Splunk Observability Cloud app does not come with Splunk Enterprise.

For more information see Create and manage organization access tokens using Splunk Observability Cloud.

Solution

Upgrade Splunk Enterprise to versions 10.2.1, 10.0.4, or higher.

Splunk is actively monitoring and patching Splunk Cloud Platform instances.

To eliminate further risk and help ensure a high level of security in your environment, you must perform the following recommended actions after you upgrade Splunk Enterprise:

• Rotate the Observability API token (Create and manage organization access tokens using Splunk Observability Cloud).

Product Status

Mitigations and Workarounds

Disable the Discover Splunk Observability Cloud app. See Manage app and add-on objects.

Detections

None

Severity

Splunk rates this vulnerability a 5.4, Medium, with a CVSSv3.1 vector of CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

If you remove or disable the Discover Splunk Observability Cloud app, there should be no impact and the severity would be informational.

Acknowledgments

Will Zgoda, Splunk