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...
Alias: CVE-2021-21330
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
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:
Last Closed: 2021-11-02 23:10:08 UTC

Attachments (Terms of Use)

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.



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:


Comment 8 RaTasha Tillery-Smith 2021-03-03 13:18:40 UTC

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

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