Critical Vulnerability in Python Aiohttp Package: Improper HTTP Request Validation
Summary
UBUNTU-CVE-2023-49082: 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
Python Aiohttp is an asynchronous HTTP client/server framework designed for asyncio and Python. It enables developers to build web applications and services that can handle multiple requests simultaneously, making it a popular choice for modern web development. However, the package has been found to have a vulnerability that compromises its ability to validate HTTP requests properly, potentially allowing attackers to manipulate requests.
Vulnerability Detail
The vulnerability arises from improper validation within the Aiohttp framework, which allows an attacker to modify HTTP requests by controlling the HTTP method (e.g., GET, POST). This can lead to request smuggling, where the attacker can insert new headers or create entirely new HTTP requests. The issue is particularly critical if the attacker can control the HTTP version of the request. This vulnerability has been assigned the identifier CVE-2023-49082 and has a CVSS score of 5.3, indicating a medium severity level.
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 workaround, consider implementing additional validation checks in your application to ensure that incoming HTTP requests conform to expected formats and methods. This can help mitigate the risk of exploitation until the package is updated.
Conclusion
The vulnerability identified as CVE-2023-49082 in the Python Aiohttp package poses a significant risk due to improper HTTP request validation. It is crucial for developers to update their packages to the patched versions to mitigate potential exploitation. Utilizing tools like Vulert can help in monitoring and managing vulnerabilities effectively.
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FAQ
CVE-2023-49082 is a vulnerability in the Python Aiohttp package that allows attackers to manipulate HTTP requests due to improper validation.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
If exploited, this vulnerability can allow attackers to modify HTTP requests, potentially leading to unauthorized actions or data breaches.
Yes, patched versions of the Aiohttp package are available for various Ubuntu distributions. It is recommended to update to these versions.
Vulert is a tool that monitors and alerts in real-time for open-source vulnerabilities in software using just a manifest file like package-lock.json.
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