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CVE-2017-11173: Improper Access Control

July 13, 2017 (updated March 3, 2020)

Missing anchor in generated regex for rack-cors 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.

References

  • nvd.nist.gov/vuln/detail/CVE-2017-11173
  • packetstormsecurity.com/files/143345/rack-cors-Missing-Anchor.html

Code Behaviors & Features

Detect and mitigate CVE-2017-11173 with GitLab Dependency Scanning

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Affected versions

All versions before 0.4.1

Fixed versions

  • 0.4.1

Solution

Upgrade to version 0.4.1 or above.

Impact 8.8 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Learn more about CVSS

Source file

gem/rack-cors/CVE-2017-11173.yml

Spotted a mistake? Edit the file on GitLab.

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