CVE-2021-22903
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-22903
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-22903.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-22903
- Aliases
- Related
- Published
- 2021-06-11T16:15:11Z
- Modified
- 2024-10-12T06:56:55.031070Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
The actionpack ruby gem before 6.1.3.2 suffers from a possible open redirect vulnerability. Specially crafted Host headers in combination with certain "allowed host" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website. This is similar to CVE-2021-22881. Strings in config.hosts that do not have a leading dot are converted to regular expressions without proper escaping. This causes, for example,
config.hosts << "sub.example.com"to permit a request with a Host header value ofsub-example.com. - References