CVE-2019-18978

MEDIUM

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.

References

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

Details

Source: MITRE

Published: 2019-11-14

Updated: 2020-02-06

Type: CWE-22

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 5.3

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

Impact Score: 1.4

Exploitability Score: 3.9

Severity: MEDIUM