CVE-2017-10784

8.8 HIGH
Published: September 19, 2017 Modified: May 13, 2026
View on NVD

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/100853
Source: cve@mitre.org
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039363
Source: cve@mitre.org
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1042004
Source: cve@mitre.org
https://access.redhat.com/errata/RHSA-2017:3485
Source: cve@mitre.org
https://access.redhat.com/errata/RHSA-2018:0378
Source: cve@mitre.org
https://access.redhat.com/errata/RHSA-2018:0583
Source: cve@mitre.org
https://access.redhat.com/errata/RHSA-2018:0585
Source: cve@mitre.org
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
Source: cve@mitre.org
https://security.gentoo.org/glsa/201710-18
Source: cve@mitre.org
https://usn.ubuntu.com/3528-1/
Source: cve@mitre.org
https://usn.ubuntu.com/3685-1/
Source: cve@mitre.org
https://www.debian.org/security/2017/dsa-4031
Source: cve@mitre.org
https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-2-8-released/
Source: cve@mitre.org
Patch Vendor Advisory
https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-3-5-released/
Source: cve@mitre.org
Patch Vendor Advisory
https://www.ruby-lang.org/en/news/2017/09/14/webrick-basic-auth-escape-sequence-injection-cve-2017-10784/
Source: cve@mitre.org
Vendor Advisory
http://www.securityfocus.com/bid/100853
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039363
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1042004
Source: af854a3a-2127-422b-91ae-364da2661108
https://access.redhat.com/errata/RHSA-2017:3485
Source: af854a3a-2127-422b-91ae-364da2661108
https://access.redhat.com/errata/RHSA-2018:0378
Source: af854a3a-2127-422b-91ae-364da2661108
https://access.redhat.com/errata/RHSA-2018:0583
Source: af854a3a-2127-422b-91ae-364da2661108
https://access.redhat.com/errata/RHSA-2018:0585
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.gentoo.org/glsa/201710-18
Source: af854a3a-2127-422b-91ae-364da2661108
https://usn.ubuntu.com/3528-1/
Source: af854a3a-2127-422b-91ae-364da2661108
https://usn.ubuntu.com/3685-1/
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.debian.org/security/2017/dsa-4031
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-2-8-released/
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
https://www.ruby-lang.org/en/news/2017/09/14/ruby-2-3-5-released/
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
https://www.ruby-lang.org/en/news/2017/09/14/webrick-basic-auth-escape-sequence-injection-cve-2017-10784/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

30 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.8 / 10.0
EPSS (Exploit Probability)
16.4%
97th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-287

Affected Vendors

ruby-lang

Related CVEs

CVE-2026-12243 7.5
CVE-2026-8023 7.5
CVE-2026-7656 8.1
CVE-2026-51219 N/A
CVE-2026-51218 N/A