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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.1814 Security Bulletin: Java DLL planting vulnerability affects IBM Sterling Secure Proxy (CVE-2016-2542) 26 July 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Sterling Secure Proxy Publisher: IBM Operating System: Windows Impact/Access: Execute Arbitrary Code/Commands -- Existing Account 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=swg21987147 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Java DLL planting vulnerability affects IBM Sterling Secure Proxy (CVE-2016-2542) Security Bulletin Document information More support for: Sterling Secure Proxy Software version: 3.4.2, 3.4.3 Operating system(s): Windows Reference #: 1987147 Modified date: 2016-07-24 Summary Flexera InstallAnywhere generates installation executables which are vulnerable to a DLL-planting vulnerability during installs on Windows systems. InstallAnywhere is used by IBM Sterling Secure Proxy. Vulnerability Details CVEID: CVE-2016-2542 DESCRIPTION: Flexera InstallShield could allow a local attacker to gain elevated privileges on the system, caused by an untrusted search path. An attacker could exploit this vulnerability using a Trojan horse DLL in the current working directory of a setup-launcher executable file to gain elevated privileges 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 IBM Sterling Secure Proxy 3.4.3 GA IBM Sterling Secure Proxy 3.4.2 through 3.4.2.0 iFix 7 Remediation/Fixes Use install images from the following iFixes to remediate the vulnerability on Windows systems. UNIX systems are not susceptible to this vulnerability. Product VRMF iFix Remediation/First Fix IBM Sterling Secure Proxy 3.4.3.0 iFix 1 Fix Central IBM Sterling Secure Proxy 3.4.2.0 iFix 8 Fix Central Workarounds and Mitigations None. Get Notified about Future Security Bulletins Subscribe to My Notifications to be notified of important product support alerts like this. Important note IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk. References Complete CVSS v3 Guide On-line Calculator v3 Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Acknowledgement None. Change History 24 July 2016: 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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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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). 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