Critical Vulnerability in Python Aiohttp Package: Improper HTTP Request Validation
Summary
UBUNTU-CVE-2023-49081: aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Affects python-aiohttp versions < 3.0.1-1ubuntu0.1~esm5. Fixed in 3.0.1-1ubuntu0.1~esm5. How to fix ↓
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Background
The Python Aiohttp package is an asynchronous HTTP client/server framework designed for asyncio and Python. It allows developers to build web applications and services that can handle multiple requests concurrently, making it a popular choice for modern web development. However, a recent vulnerability has been identified that compromises the integrity of HTTP requests, potentially allowing attackers to manipulate requests in harmful ways.
Vulnerability Detail
The vulnerability arises from improper validation within the Aiohttp framework, which allows an attacker to modify HTTP requests. Specifically, if an attacker can control the HTTP version of a request, they may insert new headers or create entirely new requests. This could lead to unauthorized actions or data exposure, making it critical for users of the package to address this issue promptly. The vulnerability has been assigned a CVSS score of 7.2, indicating its severity.
How To Fix
Minimum fixed version
3.0.1-1ubuntu0.1~esm5
This is the first release that contains the fix.
sudo apt-get install --only-upgrade python-aiohttpTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, users can implement additional validation checks on incoming HTTP requests to mitigate the risk of exploitation until the package is updated. However, this is not a substitute for applying the official patch.
Conclusion
The identified vulnerability in the Python Aiohttp package poses a significant risk due to improper HTTP request validation. Users are strongly advised to update to the patched versions of the package to secure their applications. Temporary workarounds can be implemented, but they do not replace the need for an official fix.
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FAQ
The vulnerability allows attackers to manipulate HTTP requests by controlling the HTTP version, potentially leading to unauthorized actions.
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The CVSS score of this vulnerability is 7.2, indicating a high level of severity.
Implement additional validation checks on incoming HTTP requests as a temporary workaround until the package can be updated.
Detailed information can be found in the Ubuntu security notices and the official GitHub repository.
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