ADVISORIES

• CVE-2017-10784 (NVD)
• GHSA-369m-2gv6-mw28
• Vendor Advisory

GEM

webrick

SEVERITY

CVSS v3.x: 8.8 (High)

CVSS v2.0: 9.3 (High)

PATCHED VERSIONS

• >= 1.4.0

DESCRIPTION

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.

RELATED

• https://nvd.nist.gov/vuln/detail/CVE-2017-10784
• https://access.redhat.com/errata/RHSA-2017:3485
• https://access.redhat.com/errata/RHSA-2018:0378
• https://access.redhat.com/errata/RHSA-2018:0583
• https://access.redhat.com/errata/RHSA-2018:0585
• https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
• https://security.gentoo.org/glsa/201710-18
• https://usn.ubuntu.com/3528-1/
• https://usn.ubuntu.com/3685-1/
• https://www.debian.org/security/2017/dsa-4031
• https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-2-8-released/
• https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-3-5-released/
• https://www.ruby-lang.org/en/news/2017/09/14/webrick-basic-auth-escape-sequence-injection-cve-2017-10784/
• https://web.archive.org/web/20210621131814/http://www.securityfocus.com/bid/100853
• https://web.archive.org/web/20210919031115/http://www.securitytracker.com/id/1042004
• https://web.archive.org/web/20211025092552/http://www.securitytracker.com/id/1039363
• https://github.com/ruby/ruby/commit/6617c41292
• https://github.com/ruby/webrick/commit/4ac0f3843ab82d1c31e1cfc719409208adef7813
• https://hackerone.com/reports/223363
• https://github.com/advisories/GHSA-369m-2gv6-mw28