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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.0311 Security Bulletin: Reuse of Source Port in DataPower DNS queries (CVE-2017-1773) 31 January 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM DataPower Gateways Publisher: IBM Operating System: Network Appliance Impact/Access: Provide Misleading Information -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-1773 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg22012758 - --------------------------BEGIN INCLUDED TEXT-------------------- Document information More support for: IBM DataPower Gateways Software version: 7.1, 7.2, 7.5, 7.5.1, 7.5.2, 7.6 Operating system(s): Firmware Software edition: Edition Independent Reference #: 2012758 Modified date: 30 January 2018 Summary IBM DataPower Gateway may re-use the source port in DNS lookups. IBM has addressed the applicable CVE Vulnerability Details Relevant CVE Information: CVEID: CVE-2017-1773 DESCRIPTION: IBM WebSphere DataPower Appliances could allow an attacker using man-in-the-middle techniques to spoof DNS responses to perform DNS cache poisoning and redirect Internet traffic. CVSS Base Score: 3.7 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/136817 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N) Affected Products and Versions DataPower versions 7.1.0.0-7.1.0.20, 7.2.0.0-7.2.0.17, 7.5.0.0-7.5.0.11, 7.5.1.0-7.5.1.10, 7.5.2.0-7.5.2.10 and 7.6.0.0-7.6.0.3 Remediation/Fixes Fix is available in versions 7.1.0.21, 7.2.0.18, 7.5.0.12, 7.5.1.11, 7.5.2.11, 7.6.0.4. Refer to APAR IT23417 for URLs to download the fix. Workarounds and Mitigations None Additional Bluemix Alert Information Monitor the Bluemix console (https://console.ng.bluemix.net/status/) for additional important product alerts. Change History January 31 2018: Original version published *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. 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