Risky command safeguards bypass via Search ID query in Analytics Workspace in Splunk Enterprise
Advisory ID: SVD-2022-1106
CVE ID: CVE-2022-43566
Published: 2022-11-02
Last Update: 2022-11-02
CVSSv3.1 Score: 7.3, High, High
CVSSv3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CWE: CWE-20
Bug ID: SPL-223730
Description
In Splunk Enterprise versions below 8.2.9, 8.1.12, and 9.0.2, an authenticated user can run risky commands using a more privileged user’s permissions to bypass SPL safeguards for risky commands in the Analytics Workspace. The vulnerability requires the attacker to phish the victim by tricking them into initiating a request within their browser. The attacker cannot exploit the vulnerability at will.
Solution
For Splunk Enterprise, upgrade versions to 8.1.12, 8.2.9, 9.0.2, or higher.
For Splunk Cloud Platform, Splunk is actively patching and monitoring the Splunk Cloud instances.
Product Status
| Product | Version | Component | Affected Version | Fix Version |
|---|---|---|---|---|
| Splunk Enterprise | 8.1 | Splunk Web | 8.1.11 and lower | 8.1.12 |
| Splunk Enterprise | 8.2 | Splunk Web | 8.2.0 to 8.2.8 | 8.2.9 |
| Splunk Enterprise | 9.0 | Splunk Web | 9.0.0 to 9.0.1 | 9.0.2 |
| Splunk Cloud Platform | Splunk Web | 9.0.2205 and lower | 9.0.2208 |
Mitigations and Workarounds
The vulnerability affects instances with the Analytics Workspace enabled. Disabling the Analytics Workplace application is a possible workaround. For more information on managing apps, see Manage app and add-on objects.
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
This detection search lets operators discover attempts to exfiltrate data by bypassing search ID queries in Analytics Workspace in Splunk Enterprise versions 8.2.9, 8.1.12, and 9.0.2.
Severity
Splunk rates the vulnerability as High, 7.3, with CVSS Vectors of CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N.
The vulnerability requires both the compromise of a user’s account and user interaction within a browser of a higher privileged user. The vulnerability lets an attacker run risky commands with permissions of a highly privileged user. For more information on risky commands and potential impacts, see SPL safeguards for risky commands.
If the Splunk Enterprise instance does not run Splunk Web, there is no impact and the severity is Informational.
Acknowledgments
Anton (therceman)