Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.1224 Security Bulletin: OpenSSL Vulnerability Affects IBM Sterling Connect:Expressf or UNIX (CVE-2019-1559) 10 April 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Sterling Connect:Express for UNIX Publisher: IBM Operating System: AIX Linux variants Solaris Impact/Access: Access Privileged Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-1559 Reference: ASB-2019.0088 ESB-2019.1147 ESB-2019.0649 ESB-2019.0630 ESB-2019.0620 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=ibm10879545 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: OpenSSL Vulnerability Affects IBM Sterling Connect:Express for UNIX (CVE-2019-1559) Security Bulletin Document information More support for: Sterling Connect:Express for UNIX Software version: 1.5.0 Operating system(s): AIX, Linux, Solaris Reference #: 0879545 Modified date: 08 April 2019 Summary A security vulnerability has been disclosed on 26th February 2019 by the OpenSSL Project. OpenSSl is used by IBM Sterling Connect:Express for UNIX. IBM Sterling Connect:Express for UNIX has addressed the applicable CVE. Vulnerability Details CVEID: CVE-2019-1559 DESCRIPTION: If an application encounters a fatal protocol error and then calls SSL_shutdown() twice (once to send a close_notify, and once to receive one) then OpenSSL can respond differently to the calling application if a 0 byte record is received with invalid padding compared to if a 0 byte record is received with an invalid MAC. If the application then behaves differently based on that in a way that is detectable to the remote peer, then this amounts to a padding oracle that could be used to decrypt data. In order for this to be exploitable "non-stitched" ciphersuites must be in use. Stitched ciphersuites are optimised implementations of certain commonly used ciphersuites. Also the application must call SSL_shutdown() twice even if a protocol error has occurred (applications should not do this but some do anyway). Fixed in OpenSSL 1.0.2r (Affected 1.0.2-1.0.2q). CVSS Base Score: 5.8 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 157514 CVSS Environment Score*: Undefined CVSS Vector: (CVSS: 3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N) Affected Products and Versions IBM Sterling Connect:Express for UNIX 1.5.0.15 All versions prior to and including 1.5.0.15 iFix 150-1510 Remediation/Fixes Apply the OpenSSL 1.0.2r Updater for Connect:Express for Unix available on Fix Central. Workarounds and Mitigations None. Change History 08 April 2019: Original document 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. 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXK1qjWaOgq3Tt24GAQh6ow/9HN7W1qPNNC5s1yTvWRYAwUdcszMgYMtb fvwFm4QPb4zDIio6JL4nqWQ160fgNM4e3LT0wida+m+Ox+VrthMttr5udWWc7whH y+6aogF9XoJjCpajOsl/oYfdXnmrDZz0csunBx+rFdngBWlnHikbwsOA4rjh6MFF ImjC9KSU5IMyIPoakMK//Rv+HXtuXfieQG50Ku2WqMstnuVsIimJ/NBYq6yVt5Rc Mb/0z9jju1pPWHxRGmPq82IkoibzUrNZhiOJHGCYkaAd3HgCTDnp52L8MeqOytnQ Lx/fr976/pG4tiU1IriFPzYAQVbJ2147fPOJyr5FhcsbClj9UZwmsPrsyBvQMkAK iJ86h3DSillVzSd0daLIehe6Y5KnHYtNSQZ4/fMSnZxKZXGP6sli7yd7oGMHR/Os w8PfM2upaAzR7W+dZ9he4U3gQBnA4uS2meKyN7J0xgSsTg2wwceVMswWI/yaDnGQ 49OD5mrWyyUVL09wLqPpgeVx4YB+XU5okmSJ55s5IRxOZq79EU8Z0kfzLp/k6etg 6ENdh46DrrGBl1CGAaYtTaDmZSwidsmM7cNalraTKO1JBB3ypA/Psv+OfLc6hzKy fkNRPEfYARS6Kz7PHZ0NGS/DhQ5ftCM3SeO9Es9gYdKCU55lzgWSfkwTXX112a/l tZPluBT4kyk= =p9eM -----END PGP SIGNATURE-----