CVE-2022-1554: Path Traversal in scout-browser
Summary
CVE-2022-1554: Path Traversal in scout-browser. Affects scout-browser versions < 4.52. Fixed in 4.52. How to fix ↓
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Background
Scout is a Variant Call Format (VCF) visualization interface. The Pypi package scout-browser is a Python package that provides a web-based interface for visualizing VCF files. It allows users to explore and analyze genetic variants in genomic data. The package is vulnerable to a path traversal vulnerability, which can be exploited by an attacker to access files outside of the intended directory. This vulnerability exists in versions prior to 4.52 of the scout-browser package.
Vulnerability Detail
The path traversal vulnerability in scout-browser is due to the improper handling of user-supplied input. An attacker can manipulate the input to bypass the intended file access restrictions and access arbitrary files on the system. This can lead to unauthorized disclosure of sensitive information or even remote code execution. The vulnerability has a CVSSv3 score of 6.8, indicating a moderate severity level.
How To Fix
Minimum fixed version
4.52
This is the first release that contains the fix.
pip install --upgrade "scout-browser==4.52"Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If upgrading to the latest version is not immediately possible, a temporary workaround is to restrict access to the affected application by implementing proper access controls and input validation. Additionally, it is recommended to sanitize user-supplied input to prevent path traversal attacks. Here is an example of how to sanitize user input in Python:
import os
def sanitize_path(path):
# Remove any '../' sequences
sanitized_path = os.path.normpath(path)
# Ensure the path is within the intended directory
if not sanitized_path.startswith('/path/to/intended/directory'):
raise ValueError('Invalid path')
return sanitized_path
By using the sanitize_path function to validate user-supplied paths, the risk of path traversal attacks can be mitigated.
Conclusion
The scout-browser package prior to version 4.52 is vulnerable to a path traversal vulnerability. This can be exploited by an attacker to access arbitrary files on the system. It is recommended to upgrade to the latest version of the package to mitigate the risk. If immediate upgrade is not possible, implementing proper access controls, input validation, and sanitization of user-supplied input can help reduce the impact of this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The path traversal vulnerability in scout-browser can allow an attacker to access sensitive files on the system, potentially leading to unauthorized disclosure of information or remote code execution.
No, only versions prior to 4.52 of scout-browser are affected by this vulnerability. It is recommended to upgrade to the latest version to mitigate the risk.
Yes, a temporary workaround is to implement proper access controls and input validation to restrict access to the affected application. Additionally, sanitizing user-supplied input can help mitigate the risk of path traversal attacks.
You can use the Vulert Playground at Vulert Scanner to check if your application is affected by this vulnerability. Simply provide your Pipfile.lock and the playground will analyze it for open-source vulnerabilities, including this path traversal vulnerability in scout-browser.
For further support on vulnerability remediation, you can contact info@devnack.com. Our team will be happy to assist you in addressing this vulnerability and ensuring the security of your application.
References
Related vulnerabilities
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