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AUSCERT External Security Bulletin Redistribution
ESB-2022.5623
Remote Code Execution via the Splunk Secure Gateway
application Mobile Alerts feature
7 November 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Splunk Enterprise
Publisher: Splunk
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Resolution: Patch/Upgrade
CVE Names: CVE-2022-43567
Original Bulletin:
https://www.splunk.com/en_us/product-security/announcements/svd-2022-1107.html
Comment: CVSS (Max): 8.8 CVE-2022-43567 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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SPLUNK / PRODUCT SECURITY / SVD-2022-1107
Remote Code Execution via the Splunk Secure Gateway application Mobile Alerts
feature
Advisory ID: CVE ID: CVE-2022-43567
SVD-2022-1107
Published: 2022-11-02 Last Update: 2022-11-02
CVSSv3.1 Score: CVSSv3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8, High
CWE: CWE-502 Bug ID: SPL-226837
Description
In Splunk Enterprise versions below 8.2.9, 8.1.12, and 9.0.2, an authenticated
user can run arbitrary operating system commands remotely through the use of
specially crafted requests to the mobile alerts feature in the Splunk Secure
Gateway app.
Solution
For Splunk Enterprise, upgrade versions to 8.1.12, 8.2.9, 9.0.2, or higher.
For Splunk Cloud Platform versions below 9.0.2205, Splunk is actively patching
and monitoring the Splunk Cloud instances. To request an immediate upgrade,
determine which version of Splunk Cloud Platform you're running , then create
a new support case .
Product Status
Product Version Component Affected Version Fixed
Version
Splunk Enterprise 8.1 Splunk Secure 8.1.11 and lower 8.1.12
Gateway
Splunk Enterprise 8.2 Splunk Secure 8.2.0 to 8.2.8 8.2.9
Gateway
Splunk Enterprise 9.0 Splunk Secure 9.0.0 to 9.0.1 9.0.2
Gateway
Splunk Cloud - Splunk Secure 9.0.2203.4 and 9.0.2205
Platform Gateway lower
Mitigations and Workarounds
The vulnerability requires access to the Splunk Secure Gateway app. Removing,
disabling, or uninstalling the app or restricting access to the app to
administrators remediates the vulnerability. For more information on managing
apps, see Manage app and add-on objects .
Detections
Splunk RCE via Splunk Secure Gateway Splunk Mobile alerts feature
This detection search provides information on possible exploitation attempts
against the Splunk Secure Gateway App Mobile Alerts feature.
Severity
Splunk rates the vulnerability as High, 8.8, with a CVSS Vectors of CVSS:3.1/
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. The vulnerability lets a remote
authenticated user execute arbitrary code on the server. If you removed the
Splunk Secure Gateway app or restricted access to the app to administrators,
there is no impact and the severity is Informational.
Acknowledgments
Danylo Dmytriiev (DDV_UA)
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