Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0778 IBM Security Bulletin: IBM MQ is vulnerable to a privilege escalation attack when using multiplexed channels (CVE-2018-1974) 12 March 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM MQ Publisher: IBM Operating System: Windows Impact/Access: Increased Privileges -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-1974 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=ibm10792043 - --------------------------BEGIN INCLUDED TEXT-------------------- IBM MQ is vulnerable to a privilege escalation attack when using multiplexed channels (CVE-2018-1974) Product: IBM MQ Component: server Software version: 8.0.0.0, 8.0.0.1, 8.0.0.2, 8.0.0.3, 8.0.0.4, 8.0.0.5, 8.0.0.6, 8.0.0.7, 8.0.0.8, 8.0.0.9, 8.0.0.10, 9.0.0.0, 9.0.0.1, 9.0.0.2, 9.0.0.3, 9.0.0.4, 9.0.0.5, 9.1.0.0, 9.1.0.1, 9.1.1 Operating system(s): Windows Software edition: all Reference #: 0792043 Security Bulletin Summary IBM MQ could allow an authenticated attacker to escalate their privileges with channels that have multiplexing enabled. Vulnerability Details CVEID: CVE-2018-1974 DESCRIPTION: IBM MQ could allow an authenticated attacker to escalate their privileges when using multiplexed channels. CVSS Base Score: 7.5 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 153915 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H) Affected Products and Versions IBM MQ v8 o Maintenance levels 8.0.0.0 - 8.0.0.10 IBM MQ v9 LTS o Maintenance levels 9.0.0.0 - 9.0.0.5 IBM MQ v9.1 CD o Maintenance levels 9.1.0 - 9.1.1 IBM MQ v9.1 LTS o Maintenance levels 9.1.0.0 - 9.1.0.1 Remediation/Fixes IBM MQ v8 o Apply FixPack 8.0.0.11 IBM MQ v9 LTS o Apply iFix IT24586 for MQ 9.0.0.5 IBM MQ v9.1 CD o Apply iFix IT24586 for MQ 9.1.1 IBM MQ v9.1 LTS o Apply iFix IT24586 for MQ 9.1.0.1 Workarounds and Mitigations Disable multiplexing on channels Reference Complete CVSS v3 Guide On-line Calculator v3 Related Information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Change History 1 March 2019: Initial version released *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. - --------------------------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: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXIc532aOgq3Tt24GAQhT+Q/7B1MXaoM5CAsn3SfX5LQ5X622ABA/tWT5 WYUvItRi51p8wV9FhgbTS2TVcXq1Uz7nRpUWfYYvcG0U0gs1lHDvzOlTeNYJev9H eGmzvgcXd4paneEPESyJNYurk8Jm1NN3dAn6UQ5hWrZ9LqJtu7l9wR+tQvH+mxpD Z1I5b++SDt1YAzDQzcFp6YxYBp52vFz2yI0RiEGS5/aQOyF8ZqtsaT9Akg6AtFr2 DUdIfYdlu8UprF91a7cgnR7k50co96BMJ+rVn0S0ZlANOZkR6vMl6XoBHNnVGbKu IQJNQSPXD9OnaCe2aQrlyjfc57fJwZhiHAxVA+USsaJPo4A5/46bseMZAoT/swl7 XvGlnLv04WJig089sGEHPbCzkXG7uC4AMZQhWTzMQa++oUEz5Xt4lk/JxY0ng4Nt HVZAT+62WTL8Twds5uR+4H3Wnv9NKe7+4beN9JZHHZrHs4prBVJBrCfEsYADEhm2 zYUwuUNwsFGhqElDLhZgUMNCZzuqyKfUOKaikUebLxrvu4xJUaKUi/08YaMXD9k+ LqMRzO5gfznEpAQJbZYvakHgZ5ABfnVzUb4vE3YD4BQF+NBDHvuMy4JSYTF7NCEp ZkklBbvPeArGb0y1Zap5ym8zIZj+0TWpPAJr5NXHAZfOAByS7k/k97Y7Yeh8dqpU pfBunzn4s3M= =Htl4 -----END PGP SIGNATURE-----