CVE-2020-25032 Information

Description

An issue was discovered in Flask-CORS (aka CORS Middleware for Flask) before 3.0.9. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00028.html http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00032.html http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00039.html http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00048.html https://github.com/corydolphin/flask-cors/releases/tag/3.0.9 https://www.debian.org/security/2020/dsa-4775

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5