Bug 1899267 (CVE-2020-28724) - CVE-2020-28724 python-werkzeug: open redirect via double slash in the URL
Summary: CVE-2020-28724 python-werkzeug: open redirect via double slash in the URL
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2020-28724
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1899268 1899508
Blocks: 1899270
TreeView+ depends on / blocked
 
Reported: 2020-11-18 19:17 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-12-14 18:47 UTC (History)
52 users (show)

Fixed In Version: python-werkzeug 0.11.6
Doc Type: If docs needed, set a value
Doc Text:
An open redirect flaw was found in the WSGI library python-werkzeug. When URL_PATH starts with a double slash, followed by an arbitrary URL without a scheme, python-werkzeug could redirect applications to that arbitrary URL. This flaw allows an attacker to use this technique to redirect victims to phishing websites controlled by an attacker or to use this flaw to chain vulnerabilities.
Clone Of:
Environment:
Last Closed: 2020-11-27 17:33:52 UTC
Embargoed:

Attachments (Terms of Use)

Description Guilherme de Almeida Suckevicz 2020-11-18 19:17:07 UTC 
Open redirect vulnerability in werkzeug before 0.11.6 via a double slash in the URL.

References:
https://github.com/pallets/werkzeug/issues/822
https://github.com/pallets/flask/issues/1639

Upstream patch:
https://github.com/pallets/werkzeug/pull/890
Comment 1 Guilherme de Almeida Suckevicz 2020-11-18 19:17:31 UTC 
Created python-werkzeug tracking bugs for this issue:

Affects: epel-6 [bug 1899268]
Comment 6 Product Security DevOps Team 2020-11-27 17:33:52 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-28724
Note You need to log in before you can comment on or make changes to this bug.