{"id":"CVE-2017-0902","aliases":["GHSA-73w7-6w9g-gc8w"],"url":"https://o3.security/vulnerability/CVE-2017-0902","summary":"RubyGems has Origin Validation Error vulnerability","details":"RubyGems version 2.6.12 and earlier is vulnerable to a DNS hijacking vulnerability that allows a MITM attacker to force the RubyGems client to download and install gems from a server that the attacker controls.","published":"2017-08-31T20:29:00.603Z","modified":"2026-07-08T05:49:14.040304904Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"RubyGems","name":"rubygems-update","fixedVersion":"2.6.13"}],"fix":{"url":"https://github.com/rubygems/rubygems/commit/8d91516fb7037ecfb27622f605dc40245e0f8d32","label":"rubygems/rubygems@8d91516"},"references":[{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/100586"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1039249"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:3485"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:0378"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:0583"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:0585"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201710-01"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3553-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3685-1/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2017/dsa-3966"},{"type":"REPORT","url":"https://hackerone.com/reports/218088"},{"type":"FIX","url":"http://blog.rubygems.org/2017/08/27/2.6.13-released.html"},{"type":"FIX","url":"https://github.com/rubygems/rubygems/commit/8d91516fb7037ecfb27622f605dc40245e0f8d32"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:49:14.040304904Z"}}