Test ID:	1.3.6.1.4.1.25623.1.0.806674
Category:	General
Title:	OpenSSL 'Diffie-Hellman small subgroups' MitM Attack Vulnerability - Linux
Summary:	OpenSSL is prone to a man-in-the-middle (MitM) attack vulnerability.
Description:	Summary: OpenSSL is prone to a man-in-the-middle (MitM) attack vulnerability. Vulnerability Insight: The flaw exists as the primes used in X9.42 style parameter files may not be safe. When an application is using Diffie-Hellman configured with parameters based on primes that are not safe then an attacker could use this fact to find a peer's private DH exponent. Vulnerability Impact: Successful exploitation will allow a remote attacker to conduct man-in-the-middle attack. Affected Software/OS: OpenSSL versions 1.0.2x before 1.0.2f on Linux. Solution: Upgrade to OpenSSL 1.0.2f or later. CVSS Score: 2.6 CVSS Vector: AV:N/AC:H/Au:N/C:P/I:N/A:N
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2016-0701 1034849 http://www.securitytracker.com/id/1034849 82233 http://www.securityfocus.com/bid/82233 91787 http://www.securityfocus.com/bid/91787 FEDORA-2016-527018d2ff http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176373.html GLSA-201601-05 https://security.gentoo.org/glsa/201601-05 USN-2883-1 http://www.ubuntu.com/usn/USN-2883-1 VU#257823 https://www.kb.cert.org/vuls/id/257823 http://intothesymmetry.blogspot.com/2016/01/openssl-key-recovery-attack-on-dh-small.html http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 http://www.openssl.org/news/secadv/20160128.txt http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=878e2c5b13010329c203f309ed0c8f2113f85648 https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=c5b831f21d0d29d1e517d139d9d101763f60c9a2 https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03724en_us https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05164821 https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390893 https://www.oracle.com/security-alerts/cpuapr2020.html https://www.oracle.com/security-alerts/cpujan2020.html https://www.oracle.com/security-alerts/cpujul2020.html https://www.oracle.com/security-alerts/cpuoct2020.html https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html openSUSE-SU-2016:0637 http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html
Copyright	Copyright (C) 2016 Greenbone AG

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