Test ID:	1.3.6.1.4.1.25623.1.0.120110
Category:	Amazon Linux Local Security Checks
Title:	Amazon Linux: Security Advisory (ALAS-2015-564)
Summary:	The remote host is missing an update for the 'openssl' package(s) announced via the ALAS-2015-564 advisory.
Description:	Summary: The remote host is missing an update for the 'openssl' package(s) announced via the ALAS-2015-564 advisory. Vulnerability Insight: During certificate verification, OpenSSL (starting from version 1.0.1n and 1.0.2b) will attempt to find an alternative certificate chain if the first attempt to build such a chain fails. An error in the implementation of this logic can mean that an attacker could cause certain checks on untrusted certificates to be bypassed, such as the CA flag, enabling them to use a valid leaf certificate to act as a CA and 'issue' an invalid certificate. This issue will impact any application that verifies certificates including SSL/TLS/DTLS clients and SSL/TLS/DTLS servers using client authentication. The only version of OpenSSL from the Amazon Linux AMI that is impacted by this CVE is openssl-1.0.1k-10.86.amzn1, which was published as ALAS-2015-550. Affected Software/OS: 'openssl' package(s) on Amazon Linux. Solution: Please install the updated package(s). CVSS Score: 6.4 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2015-1793 BugTraq ID: 75652 http://www.securityfocus.com/bid/75652 BugTraq ID: 91787 http://www.securityfocus.com/bid/91787 Cisco Security Advisory: 20150710 OpenSSL Alternative Chains Certificate Forgery Vulnerability (July 2015) Affecting Cisco Products http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150710-openssl https://www.exploit-db.com/exploits/38640/ http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161747.html http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161782.html FreeBSD Security Advisory: FreeBSD-SA-15:12 https://www.freebsd.org/security/advisories/FreeBSD-SA-15:12.openssl.asc https://security.gentoo.org/glsa/201507-15 HPdes Security Advisory: HPSBGN03424 http://marc.info/?l=bugtraq&m=144370846326989&w=2 HPdes Security Advisory: HPSBUX03388 http://marc.info/?l=bugtraq&m=143880121627664&w=2 HPdes Security Advisory: SSRT102180 NETBSD Security Advisory: NetBSD-SA2015-008 http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc http://www.securitytracker.com/id/1032817 http://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.561427
Copyright	Copyright (C) 2015 Greenbone AG

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