10 November 2015
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.2790 Security Bulletin: Padding Oracle Protection in IBM DataPower Gateways GatewayScript modules (CVE-2015-7412) 10 November 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM DataPower Gateways Publisher: IBM Operating System: Network Appliance Impact/Access: Access Privileged Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2015-7412 Reference: http://www-01.ibm.com/support/docview.wss?uid=swg21964170 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Padding Oracle Protection in IBM DataPower Gateways GatewayScript modules (CVE-2015-7412) Security Bulletin Document information More support for: IBM DataPower Gateways General Software version: 7.2 Operating system(s): Firmware Reference #: 1964170 Modified date: 2015-10-29 Summary IBM DataPower Gateways has addressed a Padding Oracle Protection vulnerability in GatewayScript decryption. Vulnerability Details CVEID: CVE-2015-7412 DESCRIPTION: IBM DataPower Gateways GatewayScript modules may be vulnerable to Padding Oracle attacks in some scenarios, which could allow an attacker to decrypt the captured message, and other messages encrypted using the same cryptographic keys. CVSS Base Score: 3.7 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/107532 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N) Affected Products and Versions IBM DataPower Gateway appliances version 18.104.22.168 Remediation/Fixes Fix is available in versions 22.214.171.124. Refer to APAR IT10701 for URLs to download the fix. You should verify applying this fix does not cause any compatibility issues. Workarounds and Mitigations This vulnerability exists only in IBM DataPower Gateways functions configured with a JWE decrypt action, or using the GatewayScript decryption API. Requiring the ciphertext to be signed by the sender, and verifying that signature as a prerequisite to performing decryption will address the vulnerability. Get Notified about Future Security Bulletins Subscribe to My Notifications to be notified of important product support alerts like this. References Complete CVSS v3 Guide On-line Calculator v3 Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Protecting WebSphere DataPower SOA Appliance services against Potential Security Exposure due to XML Encryption Attack ( http://www-01.ibm.com/support/docview.wss?uid=swg21501021) Change History October 29th, 2015: 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. 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