Splunk Enterprise 8.2.0 < 8.2.12, 9.0.0 < 9.0.6 (SVD-2023-0802)

high Nessus Plugin ID 180289

Language:

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-2023-0802 advisory.

- In Splunk Enterprise versions lower than 9.0.6 and 8.2.12, a malicious actor can send a malformed security assertion markup language (SAML) request to the `/saml/acs` REST endpoint which can cause a denial of service through a crash or hang of the Splunk daemon. (CVE-2023-40593)

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 8.2.12 and 9.0.6. This vulnerability does not affect Splunk Enterprise versions 9.1.0 and higher. Splunk is actively monitoring and patching Splunk Cloud Platform instances.

Plugin Details

Severity: High

ID: 180289

File Name: splunk_906_cve-2023-40593.nasl

Version: 1.6

Type: combined

Agent: windows, macosx, unix

Family: CGI abuses

Published: 8/30/2023

Updated: 4/26/2024

Configuration: Enable paranoid mode

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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-2023-40593

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/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: Settings/ParanoidReport, installed_sw/Splunk

Exploit Ease: No known exploits are available

Patch Publication Date: 8/30/2023

Vulnerability Publication Date: 8/30/2023

Reference Information

CVE: CVE-2023-40593

CWE: 400

IAVA: 2023-A-0448-S

Detections

Analytics