CVE-2021-39273 : Security Advisory and Response

XeroSecurity Sn1per 9.0 (free version) suffers from insecure permissions, allowing unprivileged users to execute arbitrary code with root privileges.

Understanding CVE-2021-39273

This CVE involves the insecure permission settings in XeroSecurity Sn1per 9.0, enabling unauthorized users to modify critical files.

What is CVE-2021-39273?

XeroSecurity Sn1per 9.0 (free version) sets insecure permissions (0777) upon execution.
Unprivileged users can manipulate application, modules, and configuration files, leading to arbitrary code execution with root privileges.

The Impact of CVE-2021-39273

The vulnerability allows unprivileged users to gain unauthorized access and potentially execute malicious code with elevated privileges.

Technical Details of CVE-2021-39273

This section covers specific technical details of the vulnerability.

Vulnerability Description

Insecure permissions (0777) in XeroSecurity Sn1per 9.0 allow unprivileged users to modify application files.
The issue leads to arbitrary code execution with root privileges.

Affected Systems and Versions

Product: XeroSecurity Sn1per 9.0 (free version)
Vendor: Not applicable
All versions are affected.

Exploitation Mechanism

Unauthorized users exploit the insecure permissions (0777) set during application execution to modify application, modules, and configuration files.

Mitigation and Prevention

Learn how to mitigate and prevent the CVE-2021-39273 vulnerability.

Immediate Steps to Take

Users should avoid running the application with elevated privileges.
Restrict access to critical files and directories.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Implement the principle of least privilege for user permissions.
Regularly update and patch the application to mitigate security risks.

Patching and Updates

Apply the latest patches and updates provided by XeroSecurity Sn1per to address the insecure permission issue.