21 February 2014
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.0224 Security Bulletin: IBM Security Network Intrusion Prevention System can be affected by vulnerabilities in OpenSSL 21 February 2014 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Security Network Intrusion Prevention System Publisher: IBM Operating System: Network Appliance Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2013-6450 CVE-2013-6449 CVE-2013-4353 Reference: ASB-2014.0014 ESB-2014.0082 ESB-2014.0056 ESB-2014.0025 ESB-2014.0021 ESB-2014.0007 Original Bulletin: http://www-01.ibm.com/support/docview.wss?uid=swg21664833 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: IBM Security Network Intrusion Prevention System can be affected by vulnerabilities in OpenSSL (CVE-2013-4353, CVE-2013-6450, and CVE-2013-6449) Flash (Alert) Document information More support for: IBM Security Network Intrusion Prevention System Software version: 4.6.1 Operating system(s): Firmware Reference #: 1664833 Modified date: 2014-02-14 Abstract The IBM Security Network Intrusion Prevention System can be affected by three vulnerabilities in OpenSSL. These vulnerabilities include crafting invalid TLS handshake to crash OpenSSL, using a flaw in Datagram TLS(DTLS) handling to crash an application and using a flaw to crash an application with TLS 1.2. Content VULNERABILITY DETAILS The following information was provided by OpenSSL. In the case of IBM Security Network Intrusion Prevention System, the Local Management Interface, SSH and the security management network ports are affected by the vulnerabilities CVE-ID: CVE-2013-4353 DESCRIPTION: A carefully crafted invalid TLS handshake could crash OpenSSL with a NULL pointer exception. A malicious server could use this flaw to crash a connecting client. This issue only affected OpenSSL 1.0.1 versions. The attack does not require authentication, local network access or specialized knowledge. An exploit could impact the availability of the system but the integrity of data and the confidentiality of information would not be compromised. CVSS: CVSS Base Score: 5.0 CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/90201 for the current score CVSS Environmental Score*: Undefined CVSS Vector (AV:N/AC:L/Au:N/C:N/I:N/A:P) CVE-ID: CVE-2013-6450 DESCRIPTION: A flaw in DTLS handling can cause an application using OpenSSL and DTLS to crash. OpenSSL versions prior to 1.0.0 are not vulnerable. OpenSSL is vulnerable to a denial of service, caused by the failure to properly maintain data structures for digest and encryption contexts by the DTLS retransmission implementation. A remote attacker could exploit this vulnerability to cause the daemon to crash. The attack does not require authentication or local network access but some degree of specialized knowledge and techniques are required. An exploit would not impact the confidentiality of information or the integrity of data, but the availability of the system could be compromised. CVSS: CVSS Base Score: 4.3 CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/90069 for the current score CVSS Environmental Score*: Undefined CVSS Vector (AV:N/AC:M/Au:N/C:N/I:N/A:P) CVE ID: CVE-2013-6449 DESCRIPTION: A flaw in OpenSSL can cause an application using OpenSSL to crash when using TLS version 1.2. This issue only affected OpenSSL 1.0.1 versions. OpenSSL is vulnerable to a denial of service, caused by an error in the ssl_get_algorithm2 function. A remote attacker could exploit this vulnerability using specially-crafted traffic from a TLS 1.2 client to cause the daemon to crash. The attack does not require authentication or local network access but some degree of specialized knowledge and techniques are required. An exploit would not impact the confidentiality of information or the integrity of data, but the availability of the system could be compromised. CVSS Base Score: 4.3 CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/90068 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P) AFFECTED PRODUCTS AND VERSIONS: Products: GX3002, GX4002, GX4004, GX4004-v2, GX5008, GX5008-v2, GX5108, GX5108-v2, GX5208, GX5208-v2, GX6116, GX7412, GX7412-10, GX7412-05, GX7800, GV200, GV1000 Firmware versions: 4.6.1 REMEDIATION: The following IBM Threat Fixpack have the fixes for these vulnerabilities: Proventia Network Intrusion Prevention System 4.6.1 All Models System-HotFix-1 for all IBM Security Network Intrusion Prevention System products at Firmware version 4.6.1 Workaround(s): None Mitigation(s): None REFERENCES: Complete CVSS Guide On-line Calculator V2 CVE-2013-4353 CVE-2013-6450 CVE-2013-6449 http://xforce.iss.net/xforce/xfdb/90201 http://xforce.iss.net/xforce/xfdb/90069 http://xforce.iss.net/xforce/xfdb/90068 RELATED INFORMATION: IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog ACKNOWLEDGEMENT None CHANGE HISTORY 14 February 2014 - 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 Flash. Note: 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: firstname.lastname@example.org 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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