Privilege Bypass Vulnerability in Jython
Summary
CVE-2013-2027: Jython 2.2.1 uses the current umask to set the privileges of the class cache files, which allows local users to bypass intended access restrictions via unspecified vectors. Affects jython versions < 2.7.1+repack-1. Fixed in 2.7.1+repack-1. How to fix ↓
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Background
Jython is an implementation of the Python programming language written in Java. It allows Python code to run on the Java Virtual Machine (JVM). Jython is commonly used for scripting, embedding in Java applications, and as a standalone interpreter. The vulnerability identified as CVE-2013-2027 affects Jython version 2.2.1. This version uses the current umask to set the privileges of the class cache files, which can be exploited by local users to bypass intended access restrictions.
Vulnerability Detail
The privilege bypass vulnerability in Jython version 2.2.1 allows local users to bypass access restrictions by leveraging the use of the current umask to set the privileges of class cache files. This can lead to unauthorized access to sensitive information or the execution of arbitrary code. The specific vectors through which this vulnerability can be exploited are not disclosed in the available information.
How To Fix
Minimum fixed version
2.7.1+repack-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade jythonTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
No specific workaround is mentioned in the available information. It is advised to follow the recommended fix and upgrade to the latest version of Jython.
Conclusion
The privilege bypass vulnerability in Jython version 2.2.1 can be exploited by local users to bypass access restrictions. To mitigate this vulnerability, it is crucial to upgrade to Jython version 2.7.1+repack-1 or later. This will ensure the security of the system and prevent unauthorized access or execution of arbitrary code. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
Jython is an implementation of the Python programming language written in Java. It allows Python code to run on the Java Virtual Machine (JVM).
The vulnerability allows local users to bypass access restrictions, potentially leading to unauthorized access to sensitive information or the execution of arbitrary code.
Jython version 2.2.1 is affected by this vulnerability.
To fix this vulnerability, it is recommended to upgrade to Jython version 2.7.1+repack-1 or later.
No specific workaround is mentioned in the available information. It is advised to follow the recommended fix and upgrade to the latest version of Jython.
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