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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4325 Security Bulletin: OpenSSL vulnerabilites impacting IBM Aspera Connect 3.7.4 and earlier (CVE-2017-3732, CVE-2016-7055) 15 November 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Aspera Connect Publisher: IBM Operating System: Linux variants Windows Mac OS Impact/Access: Access Privileged Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-3732 CVE-2016-7055 CVE-2015-3193 Reference: ASB-2018.0013 ASB-2017.0164 ASB-2017.0113 ASB-2017.0107 Original Bulletin: https://www.ibm.com/support/pages/node/1106811 - --------------------------BEGIN INCLUDED TEXT-------------------- OpenSSL vulnerabilites impacting IBM Aspera Connect 3.7.4 and earlier (CVE-2017-3732, CVE-2016-7055) Security Bulletin Summary The OpenSSL vulnerabilities CVE-2017-3732 CVE-2016-7055 impact IBM Aspera Connect version 3.7.4 and earlier. The fix is delivered in IBM Aspera Connect 3.8.0. Vulnerability Details CVEID: CVE-2017-3732 DESCRIPTION: There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL 1.0.2 before 1.0.2k and 1.1.0 before 1.1.0d. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. For example this can occur by default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very similar to CVE-2015-3193 but must be treated as a separate problem. CVSS Base score: 5.3 CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/ 121313 for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) CVEID: CVE-2016-7055 DESCRIPTION: There is a carry propagating bug in the Broadwell-specific Montgomery multiplication procedure in OpenSSL 1.0.2 and 1.1.0 before 1.1.0c that handles input lengths divisible by, but longer than 256 bits. Analysis suggests that attacks against RSA, DSA and DH private keys are impossible. This is because the subroutine in question is not used in operations with the private key itself and an input of the attacker's direct choice. Otherwise the bug can manifest itself as transient authentication and key negotiation failures or reproducible erroneous outcome of public-key operations with specially crafted input. Among EC algorithms only Brainpool P-512 curves are affected and one presumably can attack ECDH key negotiation. Impact was not analyzed in detail, because pre-requisites for attack are considered unlikely. Namely multiple clients have to choose the curve in question and the server has to share the private key among them, neither of which is default behaviour. Even then only clients that chose the curve will be affected. CVSS Base score: 5.3 CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/ 118748 for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) Affected Products and Versions +--------------------+----------+ |Affected Product(s) |Version(s)| +--------------------+----------+ |Connect |3.7.4 | +--------------------+----------+ Remediation/Fixes The fix for this set of vulnerabilities was delivered in IBM Aspera Connect 3.8.0. Workarounds and Mitigations The fix for this set of vulnerabilities was delivered in IBM Aspera Connect 3.8.0. 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. 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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 iQIVAwUBXc4ekGaOgq3Tt24GAQhHjw//VRv+McMJ8AgKvzLxzkogjzHIaS2Mj4jC YY4fB4Abiink9ApSdQBPY9u6hCoDX34tiafDlAm4lHlU0FXL6eS3dZWrTEE/I9Px Jt43NiaCqq0ViTCi80RSXCJNCtCZ5AhkoqzUNoxKZMIoLhyFWPTF9GURsz9Cf0Be GyEukR0Oe1ePNNTdxgwh8O1TOl6/zpiwWJ90RY5x68qM+3FUIYmo9e3oVxNl7yyk CSqJaT9YDPgryMzQtCeyblkLeLfWl32yEHn9HdK6BjWFAlM1VyZb1YaRxGzD3Psu rkTXcxBern8uuztMuHyQsh1Escpu7q2iYmKNfuOlL1mw2dOA+5aQjHnoT23txBLp D6KtCWX2vgEaWTM3GYo5j3i3A8SKqAf8YI0Dac+8vn25z5wMH9iHWAjv7tm4awSF xQWUkOWQ6jfDfi5lQ29TEFu0myorE2SV+qS5VTpzHO7hq95YGSQSmnWASbeJsiOS R765kFKxlMoGJqyufneD376P/i85ECIEUnsVV6+Y0CGjEO7N8AskbN3s7mFGEMIG w3klGfweqvJSMcvJZ0UQEykWum6z/SVwoebNHg1fWHbIX5bb075nl+O9dnv38rbY iv9JyHKfhNXVrH8gfmeLrCJ8brnVPySy7kSkZVWMkA5yFrC+GZGd6Sjlb1zoL1OC NgVVzXyhmyM= =JLDW -----END PGP SIGNATURE-----