Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2023.0894
SVD-2023-0207: Unnecessary File Extensions Allowed by Lookup
Table Uploads in Splunk Enterprise
15 February 2023
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Splunk Enterprise
Splunk Cloud Platform
Publisher: Splunk
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Resolution: Patch/Upgrade
CVE Names: CVE-2023-22937
Original Bulletin:
https://advisory.splunk.com//advisories/SVD-2023-0207
Comment: CVSS (Max): 4.3 CVE-2023-22937 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
CVSS Source: Splunk
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- --------------------------BEGIN INCLUDED TEXT--------------------
Unnecessary File Extensions Allowed by Lookup Table Uploads in Splunk
Enterprise
Advisory ID: SVD-2023-0207
CVE ID: CVE-2023-22937
Published: 2023-02-14
Last Update: 2023-02-14
CVSSv3.1 Score: 4.3, Medium
CVSSv3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE: CWE-20
Bug ID: SPL-229185
Description
In Splunk Enterprise versions below 8.1.13, 8.2.10, and 9.0.4, the lookup table
upload feature let a user upload lookup tables with unnecessary filename
extensions. Lookup table file extensions may now be one of the following only:
.csv, .csv.gz, .kmz, .kml, .mmdb, or .mmdb.gzl. For more information on lookup
table files, see About lookups .
Solution
For Splunk Enterprise, upgrade versions to 8.1.13, 8.2.10, 9.0.4, or higher.
For Splunk Cloud Platform, Splunk is actively patching and monitoring the
Splunk Cloud instances.
Product Status
Product Version Component Affected Version Fix Version
Splunk Enterprise 8.1 Splunk Web 8.1.12 and lower 8.1.13
Splunk Enterprise 8.2 Splunk Web 8.2.0 to 8.2.9 8.2.10
Splunk Enterprise 9.0 Splunk Web 9.0.0 to 9.0.3 9.0.4
Splunk Cloud Platform - Splunk Web 9.2.2209 and lower 9.2.2209.3
Mitigations and Workarounds
This vulnerability requires a user to hold a role with the
'upload_lookup_files' capability to exploit. An administrator can remove this
role from user accounts to mitigate the vulnerability. For additional
information on Splunk roles, refer to Define roles on the Splunk platform with
capabilities .
Detections
o Splunk unnecessary file extensions allowed by lookup table uploads
This search provides assistance in identifying lookup file uploads with
non-standard extensions.
Severity
Splunk rated the vulnerability as Medium, 4.3, with a CVSSv3.1 vector of
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: https://auscert.org.au/gpg-key/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=iYCE
-----END PGP SIGNATURE-----