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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.2379 Security Bulletin: OpenSSL and OpenVPN vulnerabilities affect IBM Rational Team Concert (CVE-2016-2183, CVE-2016-6329) 11 October 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Rational Team Concert Publisher: IBM Operating System: AIX IBM i Linux variants OS X Solaris Windows Impact/Access: Access Privileged Data -- Remote/Unauthenticated Provide Misleading Information -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-6329 CVE-2016-2183 Reference: ESB-2016.2238 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg21991482 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: OpenSSL and OpenVPN vulnerabilities affect IBM Rational Team Concert (CVE-2016-2183, CVE-2016-6329) Security Bulletin Document information More support for: Rational Team Concert General Information Software version: 4.0, 4.0.0.1, 4.0.0.2, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.5, 4.0.6, 4.0.7, 5.0, 5.0.1, 5.0.2, 6.0, 6.0.1, 6.0.2 Operating system(s): AIX, IBM i, Linux, OS X, Solaris, Windows Reference #: 1991482 Modified date: 2016-10-07 Summary OpenSSL and OpenVPN vulnerabilities affect IBM Rational Team Concert. OpenSSL and OpenVPN are used by Rational BuildForge Agent shipped with IBM Rational Team Concert. Vulnerability Details CVEID: CVE-2016-2183 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error in the in the Triple-DES on 64-bit block cipher, used as a part of the SSL/TLS protocol. By capturing large amounts of encrypted traffic between the SSL/TLS server and the client, a remote attacker able to conduct a man-in-the-middle attack could exploit this vulnerability to recover the plaintext data and obtain sensitive information. This vulnerability is known as the SWEET32 Birthday attack. CVSS Base Score: 3.7 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/116337 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) CVEID: CVE-2016-6329 DESCRIPTION: OpenVPN could allow a remote attacker to obtain sensitive information, caused by an error in the in the Triple-DES on 64-bit block cipher, used as a part of the SSL/TLS protocol. By capturing large amounts of encrypted traffic between the SSL/TLS server and the client, a remote attacker able to conduct a man-in-the-middle attack could exploit this vulnerability to recover the plaintext data and obtain sensitive information. This vulnerability is known as the SWEET32 Birthday attack. CVSS Base Score: 3.7 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/116341 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 Rational Team Concert 4.0 - 4.0.7 Rational Team Concert 5.0 - 5.0.2 Rational Team Concert 6.0 - 6.0.2 Remediation/Fixes The remediation for this Security issues is to disable triple-DES. In the Build Forge Agent when triple-DES is enabled, it also enables SSL. In order to disable triple-DES follow steps below: 1. Open bfagent.conf file, the file can be located at: Windows default: C:\Program Files\IBM\Build Forge\Agent\BFAgent.conf UNIX and Linux default: /etc/bfagent.conf 2. Add the following line in bfagent.conf after the line of "SSLProtocol": SSLCipherSuite ALL:!ADH:!aNULL:!eNULL:!LOW:!EXP:!RC4:!DES-CBC3:+HIGH:+MEDIUM Note: if the build forge agent is not using SSL, comment out this line. 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 Change History Initial Publication: 07 October 2016 *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. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. 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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