CVE-2018-25111: django-helpdesk Sensitive Data Exposure Due to Improper os.umask Usage
Summary
CVE-2018-25111: django-helpdesk before 1.0.0 allows Sensitive Data Exposure because of os.umask(0) in models.py. Affects django-helpdesk across 2 version ranges.
< 0d91fcca0b6a98a4e7248368bc1dc4f06c682159
< 1.0.0
Fixed in 0d91fcca0b6a98a4e7248368bc1dc4f06c682159. How to fix ↓
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Background
django-helpdesk is an open-source ticketing system built on Django, designed to help organizations manage support requests efficiently. It provides features such as ticket tracking, email notifications, and customizable workflows. However, prior to version 1.0.0, it was found to have a vulnerability that could lead to sensitive data exposure due to improper handling of file permissions.
Vulnerability Detail
The vulnerability arises from the use of os.umask(0) in models.py, which sets the file mode creation mask to zero. This allows files created by the application to have overly permissive permissions, potentially exposing sensitive data to unauthorized users. The ramifications include unauthorized access to sensitive information stored in files, which could lead to data breaches and compliance issues.
How To Fix
Minimum fixed version
0d91fcca0b6a98a4e7248368bc1dc4f06c682159
This is the first release that contains the fix.
pip install --upgrade "django-helpdesk==0d91fcca0b6a98a4e7248368bc1dc4f06c682159"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, you can manually set the umask to a more restrictive value before creating files in your application. For example, you can use the following code snippet in your application: 'import os; os.umask(0o077)'. This will set the file permissions to be more secure until you can upgrade the package.
Conclusion
The CVE-2018-25111 vulnerability in django-helpdesk poses a significant risk of sensitive data exposure due to improper file permission settings. It is crucial to upgrade to version 1.0.0 or later to secure your application. Implementing a temporary workaround can help mitigate risks until an upgrade is possible.
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FAQ
CVE-2018-25111 is a vulnerability in django-helpdesk that allows sensitive data exposure due to improper file permission settings.
If your application uses an affected version of django-helpdesk, sensitive data stored in files may be accessible to unauthorized users, leading to potential data breaches.
Versions of django-helpdesk prior to 1.0.0 are affected by this vulnerability.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
If you cannot upgrade immediately, implement the workaround by setting a more restrictive umask value in your application to mitigate the risk.
References
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