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AUSCERT External Security Bulletin Redistribution
Security Bulletin: Reuse of Source Port in DataPower DNS
31 January 2018
AusCERT Security Bulletin Summary
Product: IBM DataPower Gateways
Operating System: Network Appliance
Impact/Access: Provide Misleading Information -- Remote/Unauthenticated
CVE Names: CVE-2017-1773
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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
IBM DataPower Gateway may re-use the source port in DNS lookups. IBM has
addressed the applicable CVE
Relevant CVE Information:
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
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 22.214.171.124-126.96.36.199, 188.8.131.52-184.108.40.206, 220.127.116.11-18.104.22.168,
22.214.171.124-126.96.36.199, 188.8.131.52-184.108.40.206 and 220.127.116.11-18.104.22.168
Fix is available in versions 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11,
18.104.22.168. Refer to APAR IT23417 for URLs to download the fix.
Workarounds and Mitigations
Additional Bluemix Alert Information
Monitor the Bluemix console (https://console.ng.bluemix.net/status/) for
additional important product alerts.
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.
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.
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