CVE-2021-27513 : Security Advisory and Response

The module admin_ITSM in EyesOfNetwork 5.3-10 allows remote authenticated users to upload arbitrary .xml.php files due to a vulnerability in the 'le filtre userside.'

Understanding CVE-2021-27513

This CVE identifies a security flaw in the admin_ITSM module of EyesOfNetwork version 5.3-10, enabling authenticated remote users to upload malicious files.

What is CVE-2021-27513?

The CVE-2021-27513 vulnerability in EyesOfNetwork 5.3-10 permits authenticated remote attackers to upload dangerous .xml.php files as it depends on 'le filtre userside.'

The Impact of CVE-2021-27513

The impact of CVE-2021-27513 is severe as it allows threat actors to execute arbitrary code on the system by exploiting the file upload vulnerability.

Technical Details of CVE-2021-27513

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in EyesOfNetwork 5.3-10's admin_ITSM module allows remote authenticated users to upload arbitrary .xml.php files, facilitating potential remote code execution attacks.

Affected Systems and Versions

EyesOfNetwork version 5.3-10 is specifically affected by this vulnerability, exposing systems where this version is in use to the risk of unauthorized file uploads.

Exploitation Mechanism

Exploiting CVE-2021-27513 involves leveraging the insecure file upload functionality provided by the 'le filtre userside' in the admin_ITSM module, enabling attackers to upload malicious files.

Mitigation and Prevention

Protecting your systems from CVE-2021-27513 is crucial to maintaining security. Here are some measures to consider:

Immediate Steps to Take

Disable the affected module or functionality if possible until a patch is available.
Monitor system logs for any suspicious file upload activities.

Long-Term Security Practices

Regularly update the EyesOfNetwork software to the latest version to ensure known vulnerabilities are patched.
Implement proper access controls and user permissions to prevent unauthorized uploads.

Patching and Updates

Keep an eye out for security patches and updates released by EyesOfNetwork to address CVE-2021-27513 and apply them promptly to secure your systems.