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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.1418 Security Bulletin: IBM Notes InstallShield vulnerable to DLL planting (CVE-2016-2542) 6 June 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Notes Publisher: IBM Operating System: Windows Impact/Access: Increased Privileges -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2016-2542 Reference: ESB-2016.0805 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg21979808 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: IBM Notes InstallShield vulnerable to DLL planting (CVE-2016-2542) Security Bulletin Document information More support for: IBM Notes Security Software version: 8.5, 8.5.1, 8.5.2, 8.5.3, 9.0, 9.0.1 Operating system(s): Windows Reference #: 1979808 Modified date: 2016-06-03 Summary IBM Notes uses InstallShield which generates install executables that are vulnerable to a DLL-planting vulnerability. Vulnerability Details CVEID: CVE-2016-2542 DESCRIPTION Flexera InstallShield could allow a remote attacker to execute arbitrary code on the system. The application does not directly specify the fully qualified path to a dynamic-linked library (schannel.dll) when running on Microsoft Windows. By persuading a victim to open a specially-crafted file from a WebDAV or SMB share using a vulnerable application, a remote attacker could exploit this vulnerability via a specially-crafted library to execute arbitrary code on the system. CVSS Base Score: 7.8 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/110914 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) Affected Products and Versions This vulnerability affects installers of following versions of IBM Notes - - IBM Notes 9.0.1 - - IBM Notes 9.0 - - IBM Notes 8.5.3 - - IBM Notes 8.5.2 - - IBM Notes 8.5.1 - - IBM Notes 8.5 This vulnerability does not affect Fix Pack or Interim Fix installers. This vulnerability does not affect installed versions of IBM Notes. Remediation/Fixes Prepare scripts based on following samples and use these scripts to launch insallers of affected IBM Notes versions. Use this script to launch Notes Web Kit installer NotesWebkit.bat http://www-01.ibm.com/support/docview.wss?uid=swg21979808&aid=1 Use this script to launch Notes standard kit instaler from a network share location NotesStdkit_network.bat http://www-01.ibm.com/support/docview.wss?uid=swg21979808&aid=3 Use this script to launch Notes/ICAA Standard kit installer NotesStdkit.bat http://www-01.ibm.com/support/docview.wss?uid=swg21979808&aid=5 Workarounds and Mitigations Before the install begins, copy the two library files mapistub.dll and mapi32.dll from the system directory to the installer's directory. This will ensure the library files will be loaded correctly. 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 Change History 03 June 2016 - 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. - --------------------------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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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBV1UNPIx+lLeg9Ub1AQiZ6g//RzgnKqehrCyHJ5rKo8RwT4aSjrmvWZme 1XSRmmdyZpFQ49Rz+CDn2xurDXvJGRT25wLPXp+ogLX1weikRO+qGanV16eQ6F2d EJ4KyFoLfMnThXtiaWftOQ+Z1+tJAHxZSq+HN6469Yhv/KfMykgsxiE+E5lC550O 20Q44L5G0wS07u9wtgOnJNKmgWutNMbfyhrpg1ZIvZUuLK0o2fB89whtBnnLS+lL 8F0lwgs8m7H8oP8BzSSAkoemC+xm3PL/1FQWZA8lHXs4gsJb6z5bXUl2bgh+kAzR 9ygqETnudj75CO7pS9Tobj5AIW1+o5cpPrN5B6UjFs2al6pDz07d/JMrAxlKLsQb 0T5HUG8tBtZuHdzlCSzR1GYQh35c/VzXf7Rm45kWOx0hRUzESPR4j+wQtpMsD2r7 OvAn92e00Ee8Q+9kaekiI4gx00be7Zy+EyfYuwTl1O27pm9x7IINm597CD3cUtsm RBTUO3bo/+TIDPlZo+T7Bg0H5kTzjUjY+niaEYB1W90pxIHs0Imv5qRrQHC3IH0E uk+fD+cuSTDgFeUF74VgszwtqsRYQuHnadkbQy3Bj5bJ4fNu8mCM9kjIKK/S2JYl EcDdDeCs9LCH5WOg/TQ00w3NJ3y2nhU8P0VYOH9UIMg3Gi7PEBckmx9a3uDMOaew XnIovg4cLkw= =/Ot+ -----END PGP SIGNATURE-----