CVE-2020-21527 : Vulnerability Insights and Analysis

A vulnerability in halo v1.1.3 allows arbitrary file deletion through directory traversal.

Understanding CVE-2020-21527

This CVE describes a security issue in the halo v1.1.3 software.

What is CVE-2020-21527?

The vulnerability enables a user to delete any files on the system by exploiting the backup function's lack of proper file deletion restrictions.

The Impact of CVE-2020-21527

The vulnerability poses a risk of unauthorized deletion of critical system files, potentially leading to data loss or system instability.

Technical Details of CVE-2020-21527

Details about the technical aspects of the vulnerability.

Vulnerability Description

The flaw in halo v1.1.3 allows users to delete files beyond their backup files through directory traversal.

Affected Systems and Versions

Affected Version: halo v1.1.3

Exploitation Mechanism

Attackers can exploit the backup function to traverse directories and delete files outside the intended scope.

Mitigation and Prevention

Ways to address and prevent the CVE-2020-21527 vulnerability.

Immediate Steps to Take

Disable the backup function until a patch is available.
Monitor file deletions and access logs for suspicious activities.

Long-Term Security Practices

Implement proper input validation to prevent directory traversal attacks.
Regularly update and patch the software to address security vulnerabilities.

Patching and Updates

Apply patches or updates provided by the software vendor to fix the vulnerability.