CVE Vulnerability

CVE-2019-18978

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

5.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/cyu/rack-cors/compare/v1.0.3...v1.0.4 Patch Third Party Advisory
https://github.com/cyu/rack-cors/commit/e4d4fc362a4315808927011cbe5afcfe5486f17d Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/02/msg00004.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00000.html Mailing List Third Party Advisory
https://usn.ubuntu.com/4571-1/ Third Party Advisory
https://www.debian.org/security/2021/dsa-4918 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:rack-cors_project:rack-cors:*:*:*:*:*:ruby:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
Information

Published : 2019-11-14 09:15

Updated : 2021-05-21 04:47

NVD link : CVE-2019-18978

Mitre link : CVE-2019-18978

Products Affected
No products.
CWE
CWE-22