CVE-2022-34265: SQL Injection Vulnerability in Django

Background

Django is a popular Python web framework known for its simplicity and scalability. It provides a robust set of tools and features for building web applications. However, Django versions 3.2 before 3.2.14 and 4.0 before 4.0.6 are susceptible to a SQL injection vulnerability. This vulnerability affects the Trunc() and Extract() database functions when untrusted data is used as a kind/lookup_name value. Applications that do not constrain the lookup name and kind choice to a known safe list may be impacted.

Vulnerability Detail

The SQL injection vulnerability in Django allows an attacker to manipulate database queries by injecting malicious SQL code. By exploiting this vulnerability, an attacker can execute arbitrary SQL commands, potentially gaining unauthorized access to sensitive data, modifying or deleting data, or even compromising the entire application. It is crucial to address this vulnerability promptly to prevent any potential security breaches.

pip install --upgrade "django==6.1.2"

Workaround

If upgrading Django is not immediately feasible, a temporary workaround can be implemented by ensuring that the kind/lookup_name values used in the Trunc() and Extract() functions are constrained to a known safe list. By validating and sanitizing user input, you can mitigate the risk of SQL injection attacks. Here's an example of how to implement this workaround in Python:

# Define a list of safe lookup names
safe_lookup_names = ['name', 'date', 'id']

# Validate and sanitize user input
lookup_name = request.GET.get('lookup_name')
if lookup_name in safe_lookup_names:
    # Perform database query using the validated lookup_name
    results = MyModel.objects.annotate(truncated=Trunc('date', lookup_name))
    ...
else:
    # Handle invalid lookup_name
    ...

By explicitly checking if the lookup_name is in the safe_lookup_names list, you can prevent untrusted input from being used in the vulnerable functions.

Conclusion

The SQL injection vulnerability in Django versions 3.2 before 3.2.14 and 4.0 before 4.0.6 can have severe consequences if left unaddressed. It is crucial to upgrade to the fixed versions or implement the provided workaround to mitigate the risk of SQL injection attacks. For further assistance or support in vulnerability remediation, please contact DevNack.com.

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