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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.3135 SVD-2023-0611: Denial of Service via the 'dump' SPL command 2 June 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Splunk Enterprise Splunk Cloud Platform Publisher: Splunk Operating System: UNIX variants (UNIX, Linux, OSX) Windows Resolution: Patch/Upgrade CVE Names: CVE-2023-32716 Original Bulletin: https://advisory.splunk.com//advisories/SVD-2023-0611 Comment: CVSS (Max): 6.5 CVE-2023-32716 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H) 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:N/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- Denial of Service via the 'dump' SPL command Advisory ID: SVD-2023-0611 CVE ID: CVE-2023-32716 Published: 2023-06-01 Last Update: 2023-06-01 CVSSv3.1 Score: 6.5, Medium CVSSv3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CWE: CWE-754 Bug ID: SPL-235572 Description An attacker can exploit a vulnerability in the 'dump' SPL command to cause a denial of service by crashing the Splunk daemon. If the attacker supplies a longer-than-expected filename with the command, a memory access violation, or segmentation fault, occurs, which results in a crash of the Splunk platform instance. Solution For Splunk Enterprise, upgrade to versions 9.0.5, 8.2.11, 8.1.14, and higher. For Splunk Cloud Platform, Splunk is actively monitoring and patching affected instances. Product Status Product Version Component Affected Version Fix Version Splunk Enterprise 8.1 Splunk Web 8.1.0 to 8.1.13 8.1.14 Splunk Enterprise 8.2 Splunk Web 8.2.0 to 8.2.10 8.2.11 Splunk Enterprise 9.0 Splunk Web 9.0.0 to 9.0.4 9.0.5 Splunk Cloud Platform Splunk Web 9.0.2303 and below 9.0.2303.100 Mitigations and Workarounds Remove the 'run_dump' capability from any roles that users hold. Detections o Splunk DoS via dump SPL command This hunting detection search provides information about possible denial of service exploitation attempts in Splunk Enterprise versions below 9.0.5, 8.2.11, and 8.1.14. Severity Splunk rated this vulnerability as Medium, 6.5, with a CVSSv3.1 vector of CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. Acknowledgments Danylo Dmytriiev (DDV_UA) - --------------------------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. 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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). 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