Detections
Analytics

Splunk Enterprise 9.1.0 < 9.1.10, 9.2.0 < 9.2.7, 9.3.0 < 9.3.5, 9.4.0 < 9.4.3 (SVD-2025-0704)

medium Nessus Plugin ID 241435

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Synopsis

An application running on a remote web server host is affected by a vulnerability

Description

The version of Splunk installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the SVD-2025-0704 advisory.

 - In Splunk Enterprise versions below 9.4.3, 9.3.5, 9.2.7, and 9.1.10, and Splunk Cloud Platform versions below 9.3.2411.104, 9.3.2408.114, and 9.2.2406.119, an unauthenticated attacker can send a specially- crafted SPL search that could change the membership state in a Splunk Search Head Cluster (SHC) through a Cross-Site Request Forgery (CSRF), potentially leading to the removal of the captain or a member of the SHC.The vulnerability requires the attacker to phish the administrator-level victim by tricking them into initiating a request within their browser. The attacker should not be able to exploit the vulnerability at will. (CVE-2025-20321)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade Splunk Enterprise to versions 9.4.3, 9.3.5, 9.2.7, 9.1.10, or higher.Splunk is actively monitoring and patching Splunk Cloud Platform instances.

See Also

https://advisory.splunk.com/advisories/SVD-2025-0704.html

Plugin Details

Severity: Medium

ID: 241435

File Name: splunk_943_cve-2025-20321.nasl

Version: 1.2

Type: combined

Agent: windows, macosx, unix

Family: CGI abuses

Published: 7/7/2025

Updated: 7/11/2025

Configuration: Enable paranoid mode

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2025-20321

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:splunk:splunk

Required KB Items: installed_sw/Splunk, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 7/7/2025

Vulnerability Publication Date: 7/7/2025

Reference Information

CVE: CVE-2025-20321

CWE: 352

IAVA: 2025-A-0502