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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3898 Privilege Escalation in Notes System Diagnostic Service of both IBM Notes and Domino (CVE-2018-1171) 17 December 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Domino Publisher: IBM Operating System: Windows Impact/Access: Increased Privileges -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-1171 Reference: ASB-2018.0176 ESB-2018.3272 ESB-2018.3028 ESB-2018.1782 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=ibm10743405 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Privilege Escalation in Notes System Diagnostic Service of both IBM Notes and Domino (CVE-2018-1171) Security Bulletin Document information More support for: IBM Domino Component: Notes System Diagnostic (NSD) Software version: Domino 9.0, Domino 9.0.1 Operating system(s): Windows Reference #: 0743405 Modified date: 14 December 2018 Summary IBM Notes and Domino (on Windows only) contain a privilege escalation vulnerability. By crafting a command line sent via the shared memory IPC, the Notes System Diagnostic (NSD) service can be tricked into executing a malicious dll chosen by the attacker. IBM addresses this vulnerability in the fix below. Vulnerability Details CVEID: CVE-2018-1771 DESCRIPTION: IBM Notes and Domino could allow an attacker to execute commands on the system by triggering a buffer overflow in the parsing of command line arguments passed to nsd.exe. CVSS Base Score: 8.4 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/148687 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) Affected Products and Versions IBM Domino 9.0.1 through 9.0.1 FP10 IF4 IBM Domino 9.0 through 9.0 IF4 IBM Notes 9.0.1 through 9.0.1 FP10 IF5 IBM Notes 9.0 through 9.0 IF4 Please note that IBM Notes and Domino 10 no longer permit running NSD as a service so are not vulnerable to this attack. Remediation/Fixes +-----------------+------------+----------------------------------------------+ |Product |Version |Link | +-----------------+------------+----------------------------------------------+ |IBM Domino |9.0.1 |Please see this Interim Fix Technote for | | |FP10IF5 |download links to Domino 901FP10IF5 | +-----------------+------------+----------------------------------------------+ |IBM Notes |9.0.1 |Fix Central ID Notes_901FP10IF6_W32_Standard | |Standard |FP10IF6 | | +-----------------+------------+----------------------------------------------+ |IBM Notes Basic |9.0.1 |Fix Central ID Notes_901FP10IF6_W32_Basic | | |FP10IF6 | | +-----------------+------------+----------------------------------------------+ For earlier releases, IBM recommends upgrading to a fixed, supported release. However, customers who remain on Notes and Domino 9.0 may open a Service Request with IBM Support referencing SPR #EPORB3HQ6K for a custom hotfix. Note this is fixed in Notes/Domino 10.0. Workarounds and Mitigations Do not run NSD as a Windows Service. Get Notified about Future Security Bulletins Subscribe to My Notifications to be notified of important product support alerts like this. Reference Complete CVSS v3 Guide On-line Calculator v3 Related Information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Acknowledgement This vulnerability was reported to IBM by Lasse Trolle Borup of Improsec ApS Change History 30 Nov 2018: Initial Publication *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin. Disclaimer According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. Cross reference information Product Component Platform Version Edition IBM Notes Notes System Diagnostic Service Windows All Versions - --------------------------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). 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