cyu/rack-cors · Security
The rack-cors rubygem may allow directory traveral
- GHSA ID
- GHSA-pf8f-w267-mq2h
- CVE ID
- CVE-2019-18978
- Severity
- medium
- Published
- Updated
- CVSS
- 5.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CVSS v3
- 5.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Description
An issue was discovered in the rack-cors (aka Rack CORS Middleware) gem before 1.0.4 for Ruby. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.
CWEs
- CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-18978 ↗
- https://github.com/cyu/rack-cors/commit/e4d4fc362a4315808927011cbe5afcfe5486f17d ↗
- https://github.com/cyu/rack-cors/compare/v1.0.3...v1.0.4 ↗
- https://lists.debian.org/debian-lts-announce/2020/02/msg00004.html ↗
- https://lists.debian.org/debian-lts-announce/2020/10/msg00000.html ↗
- https://usn.ubuntu.com/4571-1/ ↗
- https://www.debian.org/security/2021/dsa-4918 ↗
- https://github.com/advisories/GHSA-pf8f-w267-mq2h ↗