PyPI: aiohttp
CVE-2021-21330
Safety vulnerability ID: SFTY-20210226-47030
Safety legacy ID: pyup.io-39659
Aiohttp 3.7.4 includes a fix for CVE-2021-21330: In aiohttp before version 3.7.4 there is an open redirect vulnerability. 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. A workaround can be to avoid using 'aiohttp.web_middlewares.normalize_path_middleware' in your applications. https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg
Overview
`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)
Advisory
Aiohttp 3.7.4 includes a fix for CVE-2021-21330: In aiohttp before version 3.7.4 there is an open redirect vulnerability. 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. A workaround can be to avoid using 'aiohttp.web_middlewares.normalize_path_middleware' in your applications. https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg
How to Fix
Mitigation and Workarounds
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Vulnerable Functions
Functions linked to known vulnerabilities.
References
- https://getsafety.com/vulnerabilities/SFTY-20210226-47030/CVE-2021-21330
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21330
- https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25
- https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5/
- https://pypi.org/project/aiohttp/
- https://security.gentoo.org/glsa/202208-19
- https://www.debian.org/security/2021/dsa-4864
- https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg
- https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b
- https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25
- https://nvd.nist.gov/vuln/detail/CVE-2021-21330
- https://www.debian.org/security/2021/dsa-4864
- https://security.gentoo.org/glsa/202208-19
- https://github.com/pypa/advisory-database/tree/main/vulns/aiohttp/PYSEC-2021-76.yaml
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5
- https://pypi.org/project/aiohttp
- https://github.com/advisories/GHSA-v6wp-4m6f-gcjg
Verified by Safety
Our Cybersecurity Intelligence Team reviewed this vulnerability. We combine public data with our own research to find issues not yet reported to public sources.
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