CVE-2017-17742
UnknownEPSS 5.76%
Last modified
CVE-2017-17742 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 5.76% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Ruby-Lang | Ruby | >= 2.2.0, < 2.2.10 | — |
| Ruby-Lang | Ruby | >= 2.3.0, < 2.3.7 | — |
| Ruby-Lang | Ruby | >= 2.4.0, < 2.4.4 | — |
| Ruby-Lang | Ruby | >= 2.5.0, < 2.5.1 | — |
| Ruby-Lang | Ruby | 2.6.0 | Preview1 |
| Debian | Debian Linux | 7.0 | — |
References
- http://www.securityfocus.com/bid/103684Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2018/04/msg00023.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/04/msg00024.htmlThird Party Advisory
- https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/Patch, Release Notes
- https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/Patch, Release Notes
- https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-4-4-released/Patch, Release Notes
- https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/Patch, Release Notes
- http://www.securityfocus.com/bid/103684Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2018/04/msg00023.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/04/msg00024.htmlThird Party Advisory
- https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/Patch, Release Notes
- https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/Patch, Release Notes
- https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-4-4-released/Patch, Release Notes
- https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/Patch, Release Notes
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2017-17742?
Severity scoring for CVE-2017-17742 is pending analysis. The EPSS model estimates a 5.76% probability of exploitation in the next 30 days.
How do I fix CVE-2017-17742?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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