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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.3475 Spectrum Protect Operations Center vulnerable to Logjam (CVE-2015-4000) 12 September 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Spectrum Protect Publisher: IBM Operating System: AIX Linux variants Windows Impact/Access: Access Privileged Data -- Remote/Unauthenticated Provide Misleading Information -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2015-4000 Reference: ASB-2017.0219 ASB-2016.0074 ASB-2016.0043 ASB-2016.0004 ASB-2015.0103 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=ibm11073000 - --------------------------BEGIN INCLUDED TEXT-------------------- Spectrum Protect Operations Center vulnerable to Logjam (CVE-2015-4000) Document Information More support for: IBM Spectrum Protect Component: Operations Center Software version: 8.1 Operating system(s): AIX; Linux; Windows Reference #: 1073000 Modified date: 10 September 2019 Security Bulletin Summary A port used by Operations Center is reported to be vulnerable to Logjam (CVE-2015-4000). Vulnerability Details CVEID: CVE-2015-4000 DESCRIPTION: The TLS protocol could allow a remote attacker to obtain sensitive information, caused by the failure to properly convey a DHE_EXPORT ciphersuite choice. An attacker could exploit this vulnerability using man-in-the-middle techniques to force a downgrade to 512-bit export-grade cipher. Successful exploitation could allow an attacker to recover the session key as well as modify the contents of the traffic. This vulnerability is commonly referred to as "Logjam". CVSS Base Score: 4.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 103294 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N) Affected Products and Versions IBM Spectrum Protect Operations Center affected levels are 8.1.3 through 8.1.7. Note that 7.1 is not affected. Remediation/Fixes +-----------------------+----------+-----------+-----------+---------------------------------------------------------------------------------+ |IBM Spectrum Protect |First | | | | |Operations Center |Fixing |APAR |Platform |Link to Fix | |Release |VRM Level | | | | +-----------------------+----------+-----------+-----------+---------------------------------------------------------------------------------+ |8.1 |8.1.8 |IT30213 |AIX |https://www.ibm.com/support/docview.wssuid=ibm10888465 | | | | |Linux | | | | | |Windows | | +-----------------------+----------+-----------+-----------+---------------------------------------------------------------------------------+ Workarounds and Mitigations IBM Spectrum Protect Operations Center 8.1.3 through 8.1.7, can add the following statements to the java security file (/opt/tivoli/tsm/jre/lib/ security/java.security) to eliminate exposure to this vulnerability: jdk.certpath.disabledAlgorithms=MD2,MD5,SHA1 usage TLSServer TLSClient SignedJAR, RSA keySize < 1024, DSA keySize < 1024, EC keySize < 256, DSS jdk.tls.disabledAlgorithms=SSLv3, TLSv1, TLSv1.1, DH keySize < 2048, EC keySize < 256, DSS, 3DES_EDE_CBC, DES, DESede, RC4, MD5, SHA1, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_256_CBC_SHA256, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_256_GCM_SHA384, anon, NULL, GCM jdk.tls.ephemeralDHKeySize=2048 jdk.tls.rejectClientInitiatedRenegotiation=true Get Notified about Future Security Bulletins References - --------------------------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. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. 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: https://www.auscert.org.au/bulletins/ =========================================================================== 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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