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VuXML ID	Description
a0089e18-fc9e-11e4-bc58-001e67150279	rubygems -- request hijacking vulnerability Jonathan Claudius reports: RubyGems provides the ability of a domain to direct clients to a separate host that is used to fetch gems and make API calls against. This mechanism is implemented via DNS, specifically a SRV record _rubygems._tcp under the original requested domain. RubyGems did not validate the hostname returned in the SRV record before sending requests to it. This left clients open to a DNS hijack attack, whereby an attacker could return a SRV of their choosing and get the client to use it. Discovery 2015-05-14 Entry 2015-05-17 ruby20-gems < 2.4.7 ruby21-gems < 2.4.7 ruby22-gems < 2.4.7 ports/200264 CVE-2015-3900 http://blog.rubygems.org/2015/05/14/CVE-2015-3900.html

VuXML ID

Description

a0089e18-fc9e-11e4-bc58-001e67150279

rubygems -- request hijacking vulnerability

Jonathan Claudius reports:

RubyGems provides the ability of a domain to direct clients to a separate host that is used to fetch gems and make API calls against. This mechanism is implemented via DNS, specifically a SRV record _rubygems._tcp under the original requested domain.

RubyGems did not validate the hostname returned in the SRV record before sending requests to it. This left clients open to a DNS hijack attack, whereby an attacker could return a SRV of their choosing and get the client to use it.

Discovery 2015-05-14
Entry 2015-05-17
ruby20-gems

< 2.4.7

ruby21-gems

< 2.4.7

ruby22-gems

< 2.4.7

ports/200264
CVE-2015-3900
http://blog.rubygems.org/2015/05/14/CVE-2015-3900.html