GHSA-xx9p-xxvh-7g8j

Source

https://github.com/advisories/GHSA-xx9p-xxvh-7g8j

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/11/GHSA-xx9p-xxvh-7g8j/GHSA-xx9p-xxvh-7g8j.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-xx9p-xxvh-7g8j

Aliases

Published

2023-11-14T20:36:25Z

Modified

2024-09-04T20:04:48.139343Z

Severity

3.4 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N CVSS Calculator
2.3 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N CVSS Calculator

Summary

Aiohttp has inconsistent interpretation of `Content-Length` vs. `Transfer-Encoding` differing in C and Python fallbacks

Details

Impact

Aiohttp has a security vulnerability regarding the inconsistent interpretation of the http protocol. As we know that HTTP/1.1 is persistent, if we have both Content-Length(CL) and Transfer-Encoding(TE) it can lead to incorrect interpretation of two entities that parse the HTTP and we can poison other sockets with this incorrect interpretation.

A possible Proof-of-Concept (POC) would be a configuration with a reverse proxy(frontend) that accepts both CL and TE headers and aiohttp as backend. As aiohttp parses anything with chunked, we can pass a chunked123 as TE, the frontend entity will ignore this header and will parse Content-Length. I can give a Dockerfile with the configuration if you want.

The impact of this vulnerability is that it is possible to bypass any proxy rule, poisoning sockets to other users like passing Authentication Headers, also if it is present an Open Redirect (just like CVE-2021-21330) we can combine it to redirect random users to our website and log the request.

References

https://github.com/aio-libs/aiohttp/commit/f016f0680e4ace6742b03a70cb0382ce86abe371

References

Affected packages

PyPI / aiohttp

Package

Name: aiohttp; View open source insights on deps.dev
Purl: pkg:pypi/aiohttp

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.8.0

Affected versions

0.*

0.1

0.2

0.3

0.4

0.4.1

0.4.2

0.4.3

0.4.4

0.5.0

0.6.0

0.6.1

0.6.2

0.6.3

0.6.4

0.6.5

0.7.0

0.7.1

0.7.2

0.7.3

0.8.0

0.8.1

0.8.2

0.8.3

0.8.4

0.9.0

0.9.1

0.9.2

0.9.3

0.10.0

0.10.1

0.10.2

0.11.0

0.12.0

0.13.0

0.13.1

0.14.0

0.14.1

0.14.2

0.14.3

0.14.4

0.15.0

0.15.1

0.15.2

0.15.3

0.16.0

0.16.1

0.16.2

0.16.3

0.16.4

0.16.5

0.16.6

0.17.0

0.17.1

0.17.2

0.17.3

0.17.4

0.18.0

0.18.1

0.18.2

0.18.3

0.18.4

0.19.0

0.20.0

0.20.1

0.20.2

0.21.0

0.21.1

0.21.2

0.21.4

0.21.5

0.21.6

0.22.0a0

0.22.0b0

0.22.0b1

0.22.0b2

0.22.0b3

0.22.0b4

0.22.0b5

0.22.0b6

0.22.0

0.22.1

0.22.2

0.22.3

0.22.4

0.22.5

1.*

1.0.0

1.0.1

1.0.2

1.0.3

1.0.5

1.1.0

1.1.1

1.1.2

1.1.3

1.1.4

1.1.5

1.1.6

1.2.0

1.3.0

1.3.1

1.3.2

1.3.3

1.3.4

1.3.5

2.*

2.0.0rc1

2.0.0

2.0.1

2.0.2

2.0.3

2.0.4

2.0.5

2.0.6

2.0.7

2.1.0

2.2.0

2.2.1

2.2.2

2.2.3

2.2.4

2.2.5

2.3.0a1

2.3.0a2

2.3.0a3

2.3.0a4

2.3.0

2.3.1a1

2.3.1

2.3.2b2

2.3.2b3

2.3.2

2.3.3

2.3.4

2.3.5

2.3.6

2.3.7

2.3.8

2.3.9

2.3.10

3.*

3.0.0b0

3.0.0b1

3.0.0b2

3.0.0b3

3.0.0b4

3.0.0

3.0.1

3.0.2

3.0.3

3.0.4

3.0.5

3.0.6

3.0.7

3.0.8

3.0.9

3.1.0

3.1.1

3.1.2

3.1.3

3.2.0

3.2.1

3.3.0a0

3.3.0

3.3.1

3.3.2a0

3.3.2

3.4.0a0

3.4.0a3

3.4.0b1

3.4.0b2

3.4.0

3.4.1

3.4.2

3.4.3

3.4.4

3.5.0a1

3.5.0b1

3.5.0b2

3.5.0b3

3.5.0

3.5.1

3.5.2

3.5.3

3.5.4

3.6.0a0

3.6.0a1

3.6.0a2

3.6.0a3

3.6.0a4

3.6.0a5

3.6.0a6

3.6.0a7

3.6.0a8

3.6.0a9

3.6.0a11

3.6.0a12

3.6.0b0

3.6.0

3.6.1b3

3.6.1b4

3.6.1

3.6.2a0

3.6.2a1

3.6.2a2

3.6.2

3.6.3

3.7.0b0

3.7.0b1

3.7.0

3.7.1

3.7.2

3.7.3

3.7.4

3.7.4.post0

3.8.0a7

3.8.0b0