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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2023.3149 SVD-2023-0607: Local Privilege Escalation via the ?streamfwd? program in Splunk App for Stream 2 June 2023 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Splunk App for Stream Publisher: Splunk Operating System: Windows UNIX variants (UNIX, Linux, OSX) Resolution: Patch/Upgrade CVE Names: CVE-2023-32713 Original Bulletin: https://advisory.splunk.com//advisories/SVD-2023-0607 Comment: CVSS (Max): 7.8 CVE-2023-32713 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H) CVSS Source: Splunk Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- Local Privilege Escalation via the 'streamfwd' program in Splunk App for Stream Advisory ID: SVD-2023-0607 CVE ID: CVE-2023-32713 Published: 2023-06-01 Last Update: 2023-06-01 CVSSv3.1 Score: 7.8, High CVSSv3.1 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CWE: CWE-269 Bug ID: STREAM-5290 Description A low-privileged user could use a vulnerability in the streamfwd process within the Splunk App for Stream to escalate their privileges on the machine that runs the Splunk Enterprise instance, up to and including the root user. Solution Upgrade the Splunk App for Stream to version 8.1.1 or higher. Product Status Product Version Component Affected Version Fix Version Splunk App for Stream 8.1 streamfwd 8.1 and lower 8.1.1 Mitigations and Workarounds o Install the Splunk App for Stream as a high-privileged user, for example, one that has been added to the /etc/sudoers file on the machine that runs the instance (on machines that run *nix). o Limit user access to the 'streamfwd' process by removing all but privileged users' ability to run the process. o Disable the Splunk App for Stream if you do not require it and cannot upgrade it. Detections None Severity Splunk rated the vulnerability as High, 7.8 with a CVSSv3.1 vector of CVSS:3.1/ AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H If the instance does not run the Splunk App for Stream, then there is no impact and the severity is Informational. Acknowledgments Ben Leonard-Lagarde & Lucas Fedyniak-Hopes (Modux) - --------------------------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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