CVE-2015-3900
EPSS 2.4%RubyGems vulnerable to DNS hijack attack
Published: 5/14/2022Modified: 4/28/2026
Description
RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before 2.4.7 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, aka a "DNS hijack attack."
Affected packages (2)
- Debian/jrubyfrom 0, < 1.7.20.1-2
- RubyGems/rubygems-update>= 2.0.0, < 2.0.16
References (15)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2015-3900
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2015-3900
- WEBhttp://blog.rubygems.org/2015/05/14/CVE-2015-3900.html
- WEBhttp://lists.fedoraproject.org/pipermail/package-announce/2015-August/163502.html
- WEBhttp://lists.fedoraproject.org/pipermail/package-announce/2015-August/163600.html
- WEBhttp://lists.fedoraproject.org/pipermail/package-announce/2015-August/164236.html
- WEBhttp://rhn.redhat.com/errata/RHSA-2015-1657.html
- WEBhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/rubygems-update/CVE-2015-3900.yml
- WEBhttps://puppet.com/security/cve/CVE-2015-3900
- WEBhttps://web.archive.org/web/20170331091241/https://puppet.com/security/cve/CVE-2015-3900
- WEBhttps://web.archive.org/web/20200228055155/http://www.securityfocus.com/bid/75482
- WEBhttps://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-007/?fid=6356
- WEBhttps://www.trustwave.com/Resources/SpiderLabs-Blog/Attacking-Ruby-Gem-Security-with-CVE-2015-3900
- WEBhttp://www.openwall.com/lists/oss-security/2015/06/26/2
- WEBhttp://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html