In short
- CVE-2017-11173 is a HIGH (CVSS 8.8) vulnerability affecting rack-cors, rack-cors (rack-cors project).
- Chance of exploitation in the next 30 days (EPSS): 2.3%, higher than 83.7% of all vulnerabilities.
- Fix: update to 0.4.1 or later.
| Package | Affected versions | Patched versions |
|---|
| rack-cors RubyGems | < 0.4.1
| 0.4.1
|
| rack-cors | < 0.4.1
| 0.4.1
|
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.
NVD 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.
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