Bug 1933364 (CVE-2021-21330) - CVE-2021-21330 python-aiohttp: Open redirect in aiohttp.web_middlewares.normalize_path_middleware
Summary: CVE-2021-21330 python-aiohttp: Open redirect in aiohttp.web_middlewares.norma...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-21330
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: 1933365 1933366 1934072 1934290
Blocks: 1933367
TreeView+ depends on / blocked
 
Reported: 2021-02-26 19:54 UTC by Pedro Sampaio
Modified: 2021-12-14 18:47 UTC (History)
33 users (show)

Fixed In Version: python-aiohttp 3.7.4
Doc Type: If docs needed, set a value
Doc Text:
An open redirect flaw was found in python-aiohttp. This flaw allows a remote, unauthenticated attacker to trick users into visiting a malicious webpage, disguised as a legitimate webpage and affects applications using the normalize_path_middleware functionality. The highest threat from this vulnerability is to confidentiality and integrity.
Clone Of:
Environment:
Last Closed: 2021-11-02 23:10:08 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:4702 0 None None None 2021-11-16 14:08:02 UTC

Description Pedro Sampaio 2021-02-26 19:54:04 UTC 
A flaw was found in python-aiohttp. A maliciously crafted link to an aiohttp-based web-server could redirect the browser to a different website. It is caused by a bug in the aiohttp.web_middlewares.normalize_path_middleware middleware.

References:

https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg
Comment 1 Pedro Sampaio 2021-02-26 19:54:42 UTC 
Created python-aiohttp tracking bugs for this issue:

Affects: epel-8 [bug 1933366]
Affects: fedora-all [bug 1933365]
Comment 4 Yadnyawalk Tale 2021-03-02 12:48:17 UTC 
External References:

https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg
Comment 7 Todd Cullum 2021-03-02 21:01:25 UTC 
Upstream patch: https://github.com/aio-libs/aiohttp/commit/021c416c18392a111225bc7326063dc4a99a5138
Comment 8 RaTasha Tillery-Smith 2021-03-03 13:18:40 UTC 
Statement:

Red Hat Satellite version 6.7 onward (mostly pulp part) does ship an affected version of aiohttp, however, is not vulnerable since the product code does not use the normalize_path_middleware function, which the attacker may use for an attack. We may update the python-aiohttp dependency in a future release.
Comment 9 Tapas Jena 2021-03-29 10:38:13 UTC 
As part of analysis, I found that though Ansible use Python-Aiohttp, it doesn't use the vulnerable component i.e. aiohttp.web_middlewares.normalize_path_middleware. Hence, marking Ansible Automation Platform as "Not Affected".
Comment 13 errata-xmlrpc 2021-11-16 14:08:00 UTC 
This issue has been addressed in the following products:

  Red Hat Satellite 6.10 for RHEL 7

Via RHSA-2021:4702 https://access.redhat.com/errata/RHSA-2021:4702
Note You need to log in before you can comment on or make changes to this bug.