08 November 2016
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.2665 Security Bulletin: Vulnerabilities in OpenSSL affect IBM Sterling Connect:Direct for HP NonStop (CVE-2016-2177, CVE-2016-6306, CVE-2016-2183) 8 November 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Sterling Connect:Direct for HP NonStop Publisher: IBM Operating System: HP-UX Impact/Access: Access Privileged Data -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-6306 CVE-2016-2183 CVE-2016-2177 Reference: ASB-2016.0098 ASB-2016.0095 ESB-2016.2238 ESB-2016.2116 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg21993601 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Vulnerabilities in OpenSSL affect IBM Sterling Connect:Direct for HP NonStop (CVE-2016-2177, CVE-2016-6306, CVE-2016-2183) Document information More support for: Sterling Connect:Direct for HP NonStop Software version: 3.6 Operating system(s): HP-UX Software edition: All Editions Reference #: 1993601 Modified date: 07 November 2016 Security Bulletin Summary OpenSSL vulnerabilities were disclosed on September 22 and 26, 2016 by the OpenSSL Project. OpenSSL is used by IBM Sterling Connect:Direct for HP NonStop. IBM Sterling Connect:Direct for HP NonStop has addressed the applicable CVEs. Vulnerability Details CVEID: CVE-2016-2177 DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by the incorrect use of pointer arithmetic for heap-buffer boundary checks. By leveraging unexpected malloc behavior, a remote attacker could exploit this vulnerability to trigger an integer overflow and cause the application to crash. CVSS Base Score: 5.9 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/113890 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H) CVEID: CVE-2016-6306 DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by missing message length checks when parsing certificates. A remote authenticated attacker could exploit this vulnerability to trigger an out-of-bounds read and cause a denial of service. CVSS Base Score: 4.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/117112 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L) CVEID: CVE-2016-2183 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by an error 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) Affected Products and Versions IBM Sterling Connect:Direct for HP NonStop 3.6.0 Remediation/Fixes The recommended solution is to apply the fix as soon as practical. Please see below for information about the available fixes. VRMF APAR Remediation/First Fix 3.6.0 IT08228 Apply Fix Pack 188.8.131.52, available on Fix Central You should verify that applying this configuration change does not cause any compatibility issues. Workarounds and Mitigations CVE-2016-2183: In versions of C:D for HP NonStop older than 184.108.40.206, deselect the Triple-DES (3DES) cipher suite if it is specified in the Secure+ configuration. To avoid production outages when switching to another cipher, coordinate the configuration change to an agreed cipher with the security administrator of each remote node with which you use Secure+. The recommended cipher suite is AES128-SHA or AES256-SHA. 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 07 November 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 firstname.lastname@example.org 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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