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CVE-2017-11173 Details

Description

Missing anchor in generated regex for rack-cors before 0.4.1 allows a malicious third-party site to perform CORS requests. If the configuration were intended to allow only the trusted example.com domain name and not the malicious example.net domain name, then example.com.example.net (as well as example.com-example.net) would be inadvertently allowed.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://seclists.org/fulldisclosure/2017/Jul/22	CVE	Mailing ListThird Party Advisory
https://github.com/cyu/rack-cors/commit/42ebe6caa8e85ffa9c8a171bda668ba1acc7a5e6	CVE	PatchThird Party Advisory
https://packetstormsecurity.com/files/143345/rack-cors-Missing-Anchor.html	CVE	Third Party AdvisoryVDB Entry
http://www.debian.org/security/2017/dsa-3931	CVE	Third Party Advisory
http://seclists.org/fulldisclosure/2017/Jul/22	[email protected]	Mailing ListThird Party Advisory
https://github.com/cyu/rack-cors/commit/42ebe6caa8e85ffa9c8a171bda668ba1acc7a5e6	[email protected]	PatchThird Party Advisory
https://packetstormsecurity.com/files/143345/rack-cors-Missing-Anchor.html	[email protected]	Third Party AdvisoryVDB Entry
http://www.debian.org/security/2017/dsa-3931	[email protected]	Third Party Advisory

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information to Classify Weakness	[email protected]

Affected Products

Product	Versions
rack-cors project rack-cors	< 0.4.1
CPE cpe:2.3:a:rack-cors_project:rack-cors::::::ruby::* Remediation No remediation found in references.
debian debian linux	9.0
CPE cpe:2.3:o:debian:debian_linux:9.0:::::::* Remediation No remediation found in references.

Change History

8 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 13, 2026	CVE Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Mar 3, 2020	Modified Analysis	[email protected]
Oct 3, 2019	CWE Remap	[email protected]
Nov 4, 2017	CVE Modified	[email protected]
Jul 21, 2017	Initial Analysis	[email protected]