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SPLUNK / PRODUCT SECURITY / SVD-2022-1108

Reflected Cross-Site Scripting via the radio template in Splunk Enterprise

Advisory ID: SVD-2022-1108

Published: 2022-11-02

CVSSv3.1 Score: 8.8, High

CWE: CWE-79

CVE ID: CVE-2022-43568

Last Update: 2022-11-02

CVSSv3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Bug ID: SPL-228379

Description

In Splunk Enterprise versions below 8.1.12, 8.2.9, and 9.0.2, a View allows for a Reflected Cross Site Scripting via JavaScript Object Notation (JSON) in a query parameter when output_mode=radio.

Solution

For Splunk Enterprise, upgrade versions to 8.1.12, 8.2.9, 9.0.2, or higher.

For Splunk Cloud Platform versions below 9.0.2205, Splunk is actively patching and monitoring the Splunk Cloud instances. To request an immediate upgrade, determine which version of Splunk Cloud Platform you're running, then create a new support case.

Product Status

ProductVersionComponentAffected VersionFixed Version
Splunk Enterprise8.1Splunk Web8.1.11 and lower8.1.12
Splunk Enterprise8.2Splunk Web
8.2.0 to 8.2.88.2.9
Splunk Enterprise9.0Splunk Web
9.0.0 to 9.0.19.0.2
Splunk Cloud Platform-Splunk Web
9.0.2203.4 and lower9.0.2205

Mitigations and Workarounds

The vulnerability affects instances with Splunk Web enabled, disabling Splunk Web is a possible workaround. See Disable unnecessary Splunk Enterprise components and the web.conf configuration specification file for more information on disabling Splunk Web.

Detections

Splunk Reflected XSS in the templates lists radio

Splunk versions 8.1.0, 8.2.0, and 9.0.0 are vulnerable to reflected cross site scripting (XSS) exploitation leading to Local File Inclusion (LFI) in the Splunk Assist application. This detection search provides information on exploitation attempts.

Severity 

Splunk rates the vulnerability as High, 8.8, with a CVSS Vectors of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The vulnerability requires user interaction within a browser. If the Splunk Enterprise instance does not run Splunk Web, there is no impact and the severity is Informational.

Acknowledgments

Danylo Dmytriiev (DDV_UA)

Questions? Submit your question to Splunk Support.