CVE-2021-40668 : Security Advisory and Response

HTTP File Server Android application by 'slowscript' is affected by a path traversal vulnerability allowing arbitrary file operations.

Understanding CVE-2021-40668

This CVE involves a path traversal vulnerability in the Android application HTTP File Server (Version 1.4.1) by 'slowscript'.

What is CVE-2021-40668?

The Android app HTTP File Server is impacted by a path traversal vulnerability enabling unauthorized directory listing, file read, and write actions.

The Impact of CVE-2021-40668

The vulnerability in HTTP File Server may lead to unauthorized access and manipulation of sensitive files on the affected systems.

Technical Details of CVE-2021-40668

The following technical details shed light on the specifics of this CVE.

Vulnerability Description

HTTP File Server Android app version 1.4.1 by 'slowscript' is vulnerable to path traversal allowing unauthorized file operations.

Affected Systems and Versions

Product: HTTP File Server
Vendor: slowscript
Versions: 1.4.1 (affected)

Exploitation Mechanism

The vulnerability allows threat actors to perform arbitrary file read, write, and listing operations without proper authorization.

Mitigation and Prevention

Implement the following strategies to mitigate the risks associated with CVE-2021-40668.

Immediate Steps to Take

Disable or uninstall the HTTP File Server app until a patch is available.
Regularly monitor file system changes and access logs for suspicious activities.

Long-Term Security Practices

Maintain up-to-date software versions to prevent known vulnerabilities.
Conduct regular security assessments and penetration testing to identify and address potential weaknesses.

Patching and Updates

Stay informed about software updates and security patches for the HTTP File Server app.
Apply patches promptly to address the vulnerability and enhance the security posture of the application.