medium5.3
CVE-2019-18978
An issue was discovered in the rack-cors (aka Rack CORS Middleware) gem before 1.0.4 for Ruby.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Rack-Cors Project | Rack-Cors | before 1.0.4 |
| Debian | Debian Linux | Versions 8.0, 9.0, 10.0 |
| Canonical | Ubuntu Linux | Version 16.04 |
Weakness classification
References
- NVD record
- CVE.org record
- 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/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