medium4.3
CVE-2015-4020
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…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Oracle | Solaris | Version 11.3 |
| Rubygems | Rubygems | Versions 2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5 |
Weakness classification
References
- NVD record
- CVE.org record
- http://blog.rubygems.org/2015/06/08/2.2.5-released.html
- http://blog.rubygems.org/2015/06/08/2.4.8-released.html
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
- http://www.securityfocus.com/bid/75431
- https://github.com/rubygems/rubygems/commit/5c7bfb5
- https://puppet.com/security/cve/CVE-2015-3900
- https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-009/?fid=6478
- https://www.trustwave.com/Resources/SpiderLabs-Blog/Attacking-Ruby-Gem-Security-with-CVE-2015-3900/
- http://blog.rubygems.org/2015/06/08/2.2.5-released.html
- http://blog.rubygems.org/2015/06/08/2.4.8-released.html
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
- http://www.securityfocus.com/bid/75431
- https://github.com/rubygems/rubygems/commit/5c7bfb5
- https://puppet.com/security/cve/CVE-2015-3900
- https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-009/?fid=6478
- https://www.trustwave.com/Resources/SpiderLabs-Blog/Attacking-Ruby-Gem-Security-with-CVE-2015-3900/