CVE-2023-46263 : Security Advisory and Response

A vulnerability in Avalanche versions 6.4.1 and below could allow an attacker to achieve remote code execution through an unrestricted upload of files with dangerous types.

Understanding CVE-2023-46263

This CVE identifies a critical security issue in the Avalanche software that could potentially lead to severe consequences if exploited.

What is CVE-2023-46263?

The CVE-2023-46263 vulnerability pertains to an unrestricted upload of files with dangerous types in Avalanche versions 6.4.1 and below. This flaw could be exploited by malicious actors to execute remote code on affected systems.

The Impact of CVE-2023-46263

If successfully exploited, this vulnerability could result in unauthorized remote code execution, potentially leading to data breaches, system compromise, and other serious security incidents.

Technical Details of CVE-2023-46263

This section delves into the specifics of the vulnerability, including the description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows attackers to upload files with dangerous types without proper validation, opening the door for remote code execution on vulnerable systems running Avalanche versions 6.4.1 and earlier.

Affected Systems and Versions

The vulnerability impacts Ivanti's Avalanche software specifically in versions 6.4.1 and prior, with the potential to affect any system operating on these versions.

Exploitation Mechanism

By taking advantage of the flaw in file upload validation, threat actors can upload malicious files, triggering remote code execution and gaining unauthorized access to the target system.

Mitigation and Prevention

Protecting systems from CVE-2023-46263 involves implementing immediate actions and adopting long-term security practices to mitigate risks effectively.

Immediate Steps to Take

Update to a secure version: Ivanti has released version 6.4.2 which addresses this vulnerability. Ensure all systems are upgraded accordingly.
Restrict file uploads: Implement restrictions on allowed file types to prevent the upload of malicious files.

Long-Term Security Practices

Regular security audits: Conduct periodic security assessments to identify and address potential vulnerabilities proactively.
Employee training: Educate users on safe file handling practices to minimize the risk of file-based attacks.

Patching and Updates

Stay informed about security patches and updates for the Avalanche software. Promptly apply patches to ensure systems are protected against known vulnerabilities.