CVE-2020-8983 : Security Advisory and Response

An arbitrary file write issue in Citrix ShareFile StorageZones Controller allows remote code execution, affecting all versions including 5.10.x. Exploitation depends on specific product versions.

Understanding CVE-2020-8983

This CVE involves a critical vulnerability in Citrix ShareFile StorageZones Controller that can lead to remote code execution.

What is CVE-2020-8983?

An arbitrary file write issue exists in all versions of Citrix ShareFile StorageZones Controller, allowing remote code execution.
Exploitation depends on the product version used during a specific setup step, not the current version.
Vulnerability can be exploited if a storage zone was created using specific product versions.

The Impact of CVE-2020-8983

Remote code execution and file access are granted to all data hosted by ShareFile, whether on-premise or in Citrix Cloud.
The vulnerability poses a significant risk to the confidentiality and integrity of data stored in ShareFile.

Technical Details of CVE-2020-8983

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows an attacker to write arbitrary files, leading to remote code execution.

Affected Systems and Versions

All versions of Citrix ShareFile StorageZones Controller, including 5.10.x releases as of May 2020.

Exploitation Mechanism

Exploitation depends on the product version used during a specific setup step, such as 5.9.0, 5.8.0, 5.7.0, 5.6.0, 5.5.0, or earlier.

Mitigation and Prevention

Protecting systems from CVE-2020-8983 is crucial to prevent potential exploitation.

Immediate Steps to Take

Update Citrix ShareFile StorageZones Controller to the latest patched version.
Monitor for any unauthorized access or file modifications.

Long-Term Security Practices

Implement strict access controls and least privilege principles.
Conduct regular security assessments and penetration testing.

Patching and Updates

Apply security patches and updates provided by Citrix to address the vulnerability.