Information Disclosure Vulnerability in python-oslo.middleware Package
Summary
DEBIAN-CVE-2017-2592: python-oslo-middleware before versions 3.8.1, 3.19.1, 3.23.1 is vulnerable to an information disclosure. Affects python-oslo.middleware versions < 3.19.0-3. Fixed in 3.19.0-3. How to fix ↓
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Background
The python-oslo.middleware package is a middleware library for Python applications, particularly those built on the OpenStack framework. It provides essential functionalities such as error handling, logging, and request processing. This package is crucial for ensuring that OpenStack components communicate effectively and handle errors gracefully. However, certain versions of this package are vulnerable to an information disclosure issue that could expose sensitive information through error messages.
Vulnerability Detail
The vulnerability identified as DEBIAN-CVE-2017-2592 affects python-oslo.middleware versions prior to 3.8.1, 3.19.1, and 3.23.1. It arises from the CatchError class, which may inadvertently include sensitive values in error messages. This flaw allows system users to exploit the error logs of OpenStack components, potentially revealing sensitive information such as keystone tokens. The risk is significant as it could lead to unauthorized access or data breaches.
How To Fix
Minimum fixed version
3.19.0-3
This is the first release that contains the fix.
sudo apt-get install --only-upgrade python-oslo.middlewareTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, you can limit access to the error logs or sanitize the error messages to prevent sensitive information from being logged. This can be achieved by modifying the logging configuration in your application to exclude sensitive data.
Conclusion
The python-oslo.middleware package has a critical vulnerability that can lead to information disclosure. It is essential to update to the patched versions to mitigate the risk. Additionally, implementing workarounds can help protect sensitive information until the update is applied.
See every vulnerability recorded for python-oslo.middleware →
FAQ
The vulnerability allows sensitive information to be disclosed through error messages generated by the CatchError class.
Versions prior to 3.8.1, 3.19.1, and 3.23.1 are vulnerable.
You can use the Vulert playground at Vulert Scanner to check if your application is affected without needing to sign up.
Exploitation of this vulnerability could lead to unauthorized access to sensitive information, including keystone tokens.
Yes, you can limit access to error logs or sanitize error messages to prevent sensitive information from being logged.
References
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