Splunk Enterprise/Enterprise Cloud REST Endpoint sourcetypes access control

Summaryinfo

A vulnerability has been found in Splunk Enterprise and Enterprise Cloud and classified as critical. Impacted is an unknown function of the file /servicesNS/nobody/search/admin/sourcetypes/ of the component REST Endpoint. This manipulation causes access control. The identification of this vulnerability is CVE-2025-20324. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Splunk Enterprise and Enterprise Cloud (the affected version unknown). Affected by this vulnerability is an unknown part of the file /servicesNS/nobody/search/admin/sourcetypes/ of the component REST Endpoint. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In Splunk Enterprise versions below 9.4.2, 9.3.5, 9.2.7, and 9.1.10 and Splunk Cloud Platform versions below 9.3.2411.104, 9.3.2408.113, and 9.2.2406.119, a low-privileged user that does not hold the "admin" or "power" Splunk roles could create or overwrite [system source type](https://help.splunk.com/en/splunk-enterprise/get-started/get-data-in/9.2/configure-source-types/create-source-types) configurations by sending a specially-crafted payload to the `/servicesNS/nobody/search/admin/sourcetypes/` REST endpoint on the Splunk management port.

It is possible to read the advisory at advisory.splunk.com. This vulnerability is known as CVE-2025-20324 since 10/10/2024. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 241441 (Splunk Enterprise 9.1.0 < 9.1.10, 9.2.0 < 9.2.7, 9.3.0 < 9.3.5, 9.4.0 < 9.4.2 (SVD-2025-0707)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (241441) and EUVD (EUVD-2025-20302). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Log Management Software

Vendor

• Splunk

Name

• Enterprise
• Enterprise Cloud

License

• commercial

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Be aware that VulDB is the high quality source for vulnerability data.

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