CVE-2023-48699: Eval Injection in fastbots

Background

Fastbots is a Python package available on PyPI that provides a framework for building and running web automation bots. It allows users to define locators for web elements and perform actions on them. The package is widely used for web scraping, testing, and other automation tasks. However, a vulnerability has been discovered in fastbots that allows an attacker to inject and execute arbitrary Python code through the locators.ini locator file. This can lead to remote code execution (RCE) on the affected system.

Vulnerability Detail

The vulnerability exists in the 'locator' function in the 'page.py' file of the fastbots package. This function is responsible for loading and executing locators from the 'locators.ini' file. However, it does not properly validate the content of the file before executing it. An attacker can exploit this by modifying the 'locators.ini' file and inserting malicious Python code. When the 'locator' function is called, the injected code will be executed, potentially leading to RCE. The vulnerable code snippet is as follows:

return eval(self._bot.locator(self._page_name, locator_name))

The impact of this vulnerability is significant, as it allows an attacker to execute arbitrary code on the affected system, potentially gaining unauthorized access and control.

pip install --upgrade "fastbots==0.1.5"

Workaround

There is no known workaround for this vulnerability. It is recommended to upgrade to the fixed version of fastbots as soon as possible.

Conclusion

The vulnerability in fastbots allows an attacker to inject and execute arbitrary Python code, potentially leading to remote code execution. To mitigate this issue, it is crucial to upgrade to fastbots version 0.1.5 or above. There is no known workaround for this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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FAQ