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CVE-2015-4020

Published: Aug 25, 2015

Modified: Aug 6, 2024

PUBLISHED

Description

RubyGems 2.0.x before 2.0.17, 2.2.x before 2.2.5, and 2.4.x before 2.4.8 does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record with a domain that is suffixed with the original domain name, aka a "DNS hijack attack." NOTE: this vulnerability exists because to an incomplete fix for CVE-2015-3900.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

http://blog.rubygems.org/2015/06/08/2.2.5-released.html

x_refsource_CONFIRM

https://www.trustwave.com/Resources/SpiderLabs-Blog/Attacking-Ruby-Gem-Security-with-CVE-2015-3900/

x_refsource_MISC

vdb-entry

x_refsource_BID

https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-009/?fid=6478

x_refsource_MISC

http://blog.rubygems.org/2015/06/08/2.4.8-released.html

x_refsource_CONFIRM

https://github.com/rubygems/rubygems/commit/5c7bfb5

x_refsource_CONFIRM

https://puppet.com/security/cve/CVE-2015-3900

x_refsource_CONFIRM

http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html

x_refsource_CONFIRM

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