Security Update for python-urllib3
Summary
DLA-3649-1: python-urllib3 - security update. Affects python-urllib3 versions < 1.24.1-1+deb10u2. Fixed in 1.24.1-1+deb10u2. How to fix ↓
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Background
python-urllib3 is a user-friendly HTTP client library for Python. It allows developers to make HTTP requests and handle responses in a convenient manner. This library is widely used in various Python applications and frameworks. However, a vulnerability has been discovered in python-urllib3 that could lead to information disclosure. The vulnerability arises when an HTTP redirect response with status 301, 302, or 303 is received after the request method has been changed from one that accepts a request body (e.g., POST) to GET, as required by the HTTP RFCs.
Vulnerability Detail
The vulnerability in python-urllib3 allows for potential information disclosure. When an HTTP redirect response is received after changing the request method from one that accepts a request body to GET, the library fails to remove the original request body. This could result in sensitive information being included in subsequent GET requests, potentially leading to data leakage. It is important to note that this vulnerability only affects scenarios where the request method is changed from one that accepts a body to GET in the presence of an HTTP redirect response.
How To Fix
Minimum fixed version
1.24.1-1+deb10u2
This is the first release that contains the fix.
sudo apt-get install --only-upgrade python-urllib3Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround provided for this vulnerability. However, as a general best practice, it is recommended to review the code and ensure that the request method is not changed from one that accepts a request body to GET in the presence of an HTTP redirect response. Additionally, it is crucial to keep the python-urllib3 library up to date with the latest security patches.
Conclusion
In conclusion, python-urllib3 versions prior to 1.24.1-1+deb10u2 are vulnerable to an information disclosure issue. To mitigate this vulnerability, it is crucial to upgrade to the latest version of python-urllib3. Regularly updating the library and following best practices for handling HTTP requests can help ensure the security of your Python applications. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
python-urllib3 is a user-friendly HTTP client library for Python that simplifies making HTTP requests and handling responses.
The vulnerability in python-urllib3 could lead to information disclosure, potentially exposing sensitive data in subsequent GET requests.
The vulnerability affects python-urllib3 versions prior to 1.24.1-1+deb10u2.
To fix this vulnerability, you should upgrade python-urllib3 to version 1.24.1-1+deb10u2 or later.
There is no specific workaround provided for this vulnerability. However, it is recommended to review the code and ensure that the request method is not changed from one that accepts a request body to GET in the presence of an HTTP redirect response.
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