BUGTRAQ ID: 31699
CVE(CAN) ID: CVE-2008-3905
Ruby是一种功能强大的面向对象的脚本语言。
Ruby的resolv.rb对DNS请求使用了固定的源端口和顺序排列的事件ID,这允许远程攻击者相对容易的伪造DNS响应,扮演成中间人执行网络钓鱼等各种攻击。
Yukihiro Matsumoto Ruby 1.8.x
厂商补丁:
RedHat已经为此发布了一个安全公告(RHSA-2008:0897-01)以及相应补丁:
RHSA-2008:0897-01:Moderate: ruby security update
链接:<a href=“https://www.redhat.com/support/errata/RHSA-2008-0897.html” target=“_blank”>https://www.redhat.com/support/errata/RHSA-2008-0897.html</a>
Gentoo已经为此发布了一个安全公告(GLSA-200812-17)以及相应补丁:
GLSA-200812-17:Ruby: Multiple vulnerabilities
链接:<a href=“http://security.gentoo.org/glsa/glsa-200812-17.xml” target=“_blank”>http://security.gentoo.org/glsa/glsa-200812-17.xml</a>
所有Ruby用户都应升级到最新版本:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Ddev-lang/ruby-1.8.6_p287-r1"
目前厂商已经发布了升级补丁以修复这个安全问题,请到厂商的主页下载:
<a href=“ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p287.tar.gz” target=“_blank”>ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p287.tar.gz</a>
<a href=“ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p287.tar.gz” target=“_blank”>ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p287.tar.gz</a>
14:41:43.917837 IP *.*.*.*.32852 > *.*.*.*.domain: 0+ A? www.ruby-lang.org. (35)
14:41:43.918776 IP *.*.*.*.domain > *.*.*.*.32852: 0 2/2/4 CNAME carbon.ruby-lang.org., A 221.186.184.68 (211)
14:41:43.920715 IP *.*.*.*.32853 > *.*.*.*.domain: 3787+ PTR? rev.dns.rec.some.name.of.the.host.in-addr.arpa. (43)
14:41:43.921029 IP *.*.*.*.domain > *.*.*.*.32853: 3787* 1/3/4 PTR some.name.of.the.host. (217)
14:41:43.925438 IP *.*.*.*.32852 > *.*.*.*.domain: 1+ A? www.ruby-lang.org. (35)
14:41:43.925745 IP *.*.*.*.domain > *.*.*.*.32852: 1 2/2/4 CNAME carbon.ruby-lang.org., A 221.186.184.68 (211)
14:41:43.926152 IP *.*.*.*.32853 > *.*.*.*.domain: 27846+ PTR? rev.dns.rec.some.name.of.the.host.in-addr.arpa. (43)
14:41:43.926440 IP *.*.*.*.domain > *.*.*.*.32853: 27846* 1/3/4 PTR some.name.of.the.host. (217)
14:41:43.930274 IP *.*.*.*.32852 > *.*.*.*.domain: 2+ A? www.ruby-lang.org. (35)
14:41:43.930571 IP *.*.*.*.domain > *.*.*.*.32852: 2 2/2/4 CNAME carbon.ruby-lang.org., A 221.186.184.68 (211)
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14:41:43.935295 IP *.*.*.*.domain > *.*.*.*.32852: 3 2/2/4 CNAME carbon.ruby-lang.org., A 221.186.184.68 (211)
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14:41:43.954859 IP *.*.*.*.domain > *.*.*.*.32853: 27150* 1/3/4 PTR some.name.of.the.host. (217)
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