Vulnerability in Ruby-Lang Ruby
CVE-2017-17742
Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 allows an HTTP Response Splitting attack. An attacker can inject a crafted key and value into an HTTP response for the HTTP server of WEBrick.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.055 (92.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.056 · newest: 0.055 · change: -0.001
Affected products
- Ruby-Lang Ruby — versions 2.6.0
- Debian Linux — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- usn.ubuntu.com/3685-1/ (vendor-advisory)
- www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/ (Patch, Release Notes)
- www.securityfocus.com/bid/103684 (VDB Entry, Third Party Advisory, vdb-entry)
- access.redhat.com/errata/RHSA-2018:3729 (vendor-advisory)
- www.securitytracker.com/id/1042004 (vdb-entry)
- access.redhat.com/errata/RHSA-2018:3730 (vendor-advisory)
- lists.debian.org/debian-lts-announce/2018/04/msg00023.html (mailing-list, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3731 (vendor-advisory)
- www.ruby-lang.org/en/news/2018/03/28/http-response-splitting-in-webrick-cve-201… (Vendor Advisory)
- www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/ (Patch, Release Notes)
Frequently asked questions
- What is CVE-2017-17742?
- CVE-2017-17742 is a medium-severity vulnerability in Ruby-Lang Ruby, classified under HTTP Response Splitting. CVSS score: 5.3/10. Published 2018-04-03.
- How severe is CVE-2017-17742?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2017-17742 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.