CVE-2019-13343 Information

Description

Butor Portal before 1.0.27 is affected by a Path Traversal vulnerability leading to a pre-authentication arbitrary file download. Effectively a remote anonymous user can download any file on servers running Butor Portal. WhiteLabelingServlet is responsible for this vulnerability. It does not properly sanitize user input on the theme t parameter before reusing it in a path. This path is then used without validation to fetch a file and return its raw content to the user via the /wl?t=../../…&h= substring followed by a filename.

CVSS Vector

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

Reference

https://bitbucket.org/account/user/butor-team/projects/PROJ https://bitbucket.org/butor-team/portal/commits/all https://bitbucket.org/butor-team/portal/commits/cd7055d33e194fcf530100ee1d8d13aa9cde230b https://bitbucket.org/butor-team/portal/src/cd7055d33e194fcf530100ee1d8d13aa9cde230b/src/main/java/com/butor/portal/web/servlet/WhiteLabelingServlet.java?at=master https://www.gosecure.net/blog/2019/09/30/butor-portal-arbitrary-file-download-vulnerability-cve-2019-13343

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5