CVE-2017-1000433: Vulnerability in pysaml2 Package
Summary
CVE-2017-1000433: pysaml2 version 4.4.0 and older accept any password when run with python optimizations enabled. Affects pysaml2 versions < 4.5.0. Fixed in 4.5.0. How to fix ↓
Also tracked for
- python-pysaml2 · Debian:11
The same CVE-2017-1000433 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
The pysaml2 package is a Python implementation of the SAML 2.0 protocol. It provides functionality for creating and consuming SAML assertions, as well as handling SAML-based authentication and authorization. The package is widely used in various Python applications that require SAML integration.
Vulnerability Detail
The vulnerability (CVE-2017-1000433) affects pysaml2 versions 4.4.0 and older when run with Python optimizations enabled. It allows attackers to log in as any user without knowing their password. This is due to a flaw in the password validation mechanism, which fails to properly verify the user's credentials. As a result, an attacker can exploit this vulnerability to gain unauthorized access to the system and potentially perform malicious actions on behalf of other users.
How To Fix
Minimum fixed version
4.5.0
This is the first release that contains the fix.
pip install --upgrade "pysaml2==4.5.0"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is essential to apply the recommended fix by upgrading to a secure version of pysaml2.
Conclusion
The vulnerability in pysaml2 versions 4.4.0 and older poses a significant risk of unauthorized access to affected systems. To ensure the security of your application, it is crucial to upgrade to pysaml2 version 4.5.0 or newer. This fix addresses the flaw in the password validation mechanism and prevents attackers from logging in without proper credentials. For further support on vulnerability remediation, you can reach out to DevNack.com.
See every vulnerability recorded for pysaml2 →
FAQ
The vulnerability allows attackers to log in as any user without knowing their password, potentially leading to unauthorized access and misuse of sensitive information.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your application is affected by this vulnerability. Simply provide your Pipfile.lock file, and Vulert will analyze it for any open-source vulnerabilities, including this specific issue.
While there may not be a specific known exploit publicly available, the vulnerability can be exploited by attackers who are aware of its existence and can craft malicious requests to gain unauthorized access.
There have been no specific reported incidents related to this vulnerability. However, it is crucial to apply the recommended fix to mitigate the risk of potential unauthorized access.
No, the recommended fix for this vulnerability is to upgrade to a secure version of pysaml2. It is not possible to mitigate the risk without applying the fix.
Related vulnerabilities
Recent vulnerabilities recorded for pysaml2.
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