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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.3140 SVD-2023-0606: Unauthenticated Log Injection on '/var/log/splunk/web_service.log' Log File 2 June 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Splunk Enterprise Publisher: Splunk Operating System: Windows UNIX variants (UNIX, Linux, OSX) Resolution: Patch/Upgrade CVE Names: CVE-2023-32712 Original Bulletin: https://advisory.splunk.com//advisories/SVD-2023-0606 Comment: CVSS (Max): 3.4 CVE-2023-32712 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:N) CVSS Source: Splunk Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:N - --------------------------BEGIN INCLUDED TEXT-------------------- Unauthenticated Log Injection on '/var/log/splunk/web_service.log' Log File Advisory ID: SVD-2023-0606 CVE ID: CVE-2023-32712 Published: 2023-06-01 Last Update: 2023-06-01 CVSSv3.1 Score: 3.4, Low CVSSv3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:N CWE: CWE-117 Bug ID: SPL-235259 Description An attacker can use a specially crafted web URL in their browser to cause log file injection, in which the attack inserts American National Standards Institute (ANSI) escape codes into specific files using a terminal program that supports those escape codes. The attack requires a terminal program that supports the translation of ANSI escape codes and requires additional user interaction to successfully execute. Solution For Splunk Enterprise, upgrade versions to 8.1.14, 8.2.11, 9.0.5, or higher. This vulnerability does not affect Splunk Cloud Platform 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 Mitigations and Workarounds Do not use a terminal program that can send ANSI escape codes to access a Splunk Enterprise instance. Detections None Severity Splunk rated the vulnerability as Low, 3.4, with a CVSSv3.1 vector of CVSS:3.1/ AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:L/A:N. Acknowledgments STOK / Fredrik Alexandersson - --------------------------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. 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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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