{"id":1299,"date":"2013-10-25T09:35:31","date_gmt":"2013-10-25T07:35:31","guid":{"rendered":"http:\/\/securite.intrinsec.com\/?p=1299"},"modified":"2013-10-25T09:35:31","modified_gmt":"2013-10-25T07:35:31","slug":"ipv6-et-la-securite-nouvelles-du-front-octobre-2","status":"publish","type":"post","link":"https:\/\/www.intrinsec.com\/en\/ipv6-et-la-securite-nouvelles-du-front-octobre-2\/","title":{"rendered":"IPv6 and security: news from the front \u2013 October"},"content":{"rendered":"<p><strong>Published articles<\/strong><\/p>\n<p>Andrew Yourtchenko, with the help of a few others, published a page on the Cisco DocWiki wiki: <a href=\"http:\/\/docwiki.cisco.com\/wiki\/FHS\">FHS<\/a>. This page presents Cisco&#039;s First Hop Security (FHS) features and provides configuration examples. These features enable IPv6 security within a local network.<\/p>\n<p>Enno Rey published an article on the Insinuator blog:\u00a0<a href=\"http:\/\/www.insinuator.net\/2013\/10\/ipam-requirements-in-ipv6-networks\/\">IPAM Requirements in IPv6 Networks<\/a>. It lists the IPv6-specific features that IPAM (IP Address Management) solutions must have: being able to use SNMPv3 to communicate with network equipment and retrieve the IPv6 addresses used, being able to classify IPv6 addresses by categories (SLAAC or DHCP for example), etc.<\/p>\n<p><strong>Vulnerabilities<\/strong><\/p>\n<p>The Virtual Fragmentation Reassembly (VFR) feature for IPv6 in Cisco IOS is affected by a vulnerability (CVSS Base = 7.8) that allows a denial-of-service attack to be carried out by sending a series of specially crafted IPv6 fragments (<a href=\"http:\/\/tools.cisco.com\/security\/center\/content\/CiscoSecurityAdvisory\/cisco-sa-20130925-ipv6vfr\">cisco-sa-20130925-ipv6vfr<\/a>, <a href=\"https:\/\/web.nvd.nist.gov\/view\/vuln\/detail?vulnId=CVE-2013-5474\">CVE-2013-5474<\/a>).<\/p>\n<p>A vulnerability (CVSS Base = 4.3) affecting the Linux kernel has been identified: when using IPsec, SCTP traffic is not encrypted with IPv6, whereas it is with IPv4 (<a href=\"https:\/\/web.nvd.nist.gov\/view\/vuln\/detail?vulnId=CVE-2013-4350\">CVE-2013-4350<\/a>).<\/p>\n<p>A vulnerability (CVSS Base = 4.9) affecting the Linux kernel has been identified: it is possible to <em>crasher<\/em> the OS using a <em>socket\u00a0<\/em>AF_INET6 to connect to an IPv4 interface (<a href=\"https:\/\/web.nvd.nist.gov\/view\/vuln\/detail?vulnId=CVE-2013-2232\">CVE-2013-2232<\/a>).<\/p>\n<p>The Linux kernel&#039;s ip6_ufo_append_data function, linked to the UFO (UDP Fragmentation Offload) functionality, is affected by a vulnerability (CVSS Base = 6.1): sending specially crafted UDP messages can cause <em>crasher<\/em> the kernel and potentially allow the execution of arbitrary code (<a href=\"https:\/\/web.nvd.nist.gov\/view\/vuln\/detail?vulnId=CVE-2013-4387\">CVE-2013-4387<\/a>).<\/p>","protected":false},"excerpt":{"rendered":"<p>Articles publi\u00e9s Andrew Yourtchenko, avec l\u2019aide de quelques autres personnes, a publi\u00e9 une page sur [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":51,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[46],"class_list":["post-1299","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-veille-securite","tag-ipv6"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>IPv6 et la s\u00e9curit\u00e9 : nouvelles du front \u2013 octobre - INTRINSEC<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.intrinsec.com\/en\/ipv6-et-la-securite-nouvelles-du-front-octobre-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" 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