Splunk Enterprise 8.1.x < 8.1.6 MFA Bypass

high Nessus Plugin ID 161707

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Synopsis

An application running on a remote web server host may be affected by an MFA bypass vulnerability.

Description

According to its self-reported version number, the version of Splunk running on the remote web server is Splunk Enterprise 8.1.x prior to 8.1.6. It is, therefore, affected by a vulnerability in Splunk Enterprise's implementation of DUO MFA that allows for bypassing the MFA verification. The vulnerability impacts Splunk Enterprise instances configured to use DUO MFA and does not impact or affect a DUO product or service.

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 version 8.1.6, 8.2.0, or later.

Plugin Details

Severity: High

ID: 161707

File Name: splunk_820.nasl

Version: 1.5

Type: combined

Agent: unix

Family: CGI abuses

Published: 5/31/2022

Updated: 9/5/2022

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2021-26253

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/4/2022

Vulnerability Publication Date: 5/3/2022

Reference Information

CVE: CVE-2021-26253

IAVA: 2022-A-0219-S

Detections

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