CVE-2013-6444: PyWBEM SSL Server Spoofing Vulnerability
Summary
CVE-2013-6444: PyWBEM 0.7 and earlier does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof... Affects pywbem versions < 0.8.1. Fixed in 0.8.1. How to fix ↓
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Background
PyWBEM is a Python library that provides a pure Python interface for the DMTF Web-Based Enterprise Management (WBEM) standards. It allows users to interact with WBEM servers using the Common Information Model (CIM) and the WBEM Query Language (WQL). PyWBEM versions 0.7 and earlier are affected by a vulnerability that allows man-in-the-middle attackers to spoof SSL servers by using an arbitrary valid certificate. This vulnerability arises due to the failure of PyWBEM to verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate.
Vulnerability Detail
The PyWBEM SSL Server Spoofing vulnerability (CVE-2013-6444) enables attackers to impersonate SSL servers, potentially leading to various security risks. By exploiting this vulnerability, an attacker can intercept and manipulate communication between PyWBEM clients and servers, potentially gaining unauthorized access to sensitive information or executing arbitrary code on the client-side. This vulnerability can be particularly dangerous in scenarios where PyWBEM is used to manage critical systems or handle sensitive data.
How To Fix
Minimum fixed version
0.8.1
This is the first release that contains the fix.
pip install --upgrade "pywbem==0.8.1"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 PyWBEM.
Conclusion
The PyWBEM SSL Server Spoofing vulnerability (CVE-2013-6444) poses a significant security risk, allowing attackers to impersonate SSL servers and potentially gain unauthorized access to sensitive information. It is crucial to upgrade PyWBEM to version 0.8.1 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
PyWBEM is a Python library that provides a pure Python interface for the DMTF Web-Based Enterprise Management (WBEM) standards. It allows users to interact with WBEM servers using the Common Information Model (CIM) and the WBEM Query Language (WQL).
The PyWBEM SSL Server Spoofing vulnerability allows man-in-the-middle attackers to impersonate SSL servers, potentially leading to unauthorized access to sensitive information or execution of arbitrary code on the client-side.
PyWBEM versions 0.7 and earlier are affected by this vulnerability.
To fix this vulnerability, upgrade PyWBEM to version 0.8.1 or later by running the command 'pip install --upgrade pywbem'.
No, there is no known workaround for this vulnerability. It is crucial to apply the recommended fix by upgrading to a secure version of PyWBEM.
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