{"id":"CVE-2017-10784","aliases":["GHSA-369m-2gv6-mw28"],"url":"https://o3.security/vulnerability/CVE-2017-10784","summary":"WEBrick RCE Vulnerability","details":"The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name.","published":"2017-09-19T17:29:00.263Z","modified":"2026-07-08T12:05:02.395462Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"RubyGems","name":"webrick","fixedVersion":"1.4.0"}],"fix":{"url":"https://github.com/ruby/ruby/commit/6617c41292","label":"ruby/ruby@6617c41"},"references":[{"type":"WEB","url":"http://www.securitytracker.com/id/1042004"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html"},{"type":"WEB","url":"https://usn.ubuntu.com/3528-1/"},{"type":"WEB","url":"https://usn.ubuntu.com/3685-1/"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/100853"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1039363"},{"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://security.gentoo.org/glsa/201710-18"},{"type":"ADVISORY","url":"https://www.debian.org/security/2017/dsa-4031"},{"type":"ADVISORY","url":"https://www.ruby-lang.org/en/news/2017/09/14/webrick-basic-auth-escape-sequence-injection-cve-2017-10784/"},{"type":"FIX","url":"https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-2-8-released/"},{"type":"FIX","url":"https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-3-5-released/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-10784"},{"type":"WEB","url":"https://github.com/ruby/ruby/commit/6617c41292"},{"type":"WEB","url":"https://github.com/ruby/webrick/commit/4ac0f3843ab82d1c31e1cfc719409208adef7813"},{"type":"WEB","url":"https://hackerone.com/reports/223363"},{"type":"WEB","url":"https://www.ruby-lang.org/en/news/2017/09/14/webrick-basic-auth-escape-sequence-injection-cve-2017-10784"},{"type":"WEB","url":"https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-3-5-released"},{"type":"WEB","url":"https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-2-8-released"},{"type":"WEB","url":"https://web.archive.org/web/20211025092552/http://www.securitytracker.com/id/1039363"},{"type":"WEB","url":"https://web.archive.org/web/20210919031115/http://www.securitytracker.com/id/1042004"},{"type":"WEB","url":"https://web.archive.org/web/20210621131814/http://www.securityfocus.com/bid/100853"},{"type":"WEB","url":"https://usn.ubuntu.com/3685-1"},{"type":"WEB","url":"https://usn.ubuntu.com/3528-1"},{"type":"WEB","url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2017-10784.yml"},{"type":"PACKAGE","url":"https://github.com/ruby/webrick"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T12:05:02.395462Z"}}