External risk intelligence

Citrix ShareFile Storage Zones Controller Remote Compromise Vulnerability

CVE advisoryKnown Exploit

CVE-2023-24489

A vulnerability in the customer-managed ShareFile storage zones controller allows unauthenticated attackers to remotely compromise the system. This poses a significant business risk, potentially leading to unauthorized access and manipulation of sensitive data.

5Halo Surface Signal

Citrix Sharefile Storage Zones Controller

before 5.11.24

External exposure likelihood

Halo Surface Signal score for CVE-2023-24489

The ShareFile storage zones controller is designed to be a public-facing gateway for file storage and collaboration, serving as an internet-accessible endpoint to facilitate file transfers and remote access in standard deployments.

Horizon Alert

Summary of the vulnerability and why it matters

A vulnerability has been identified in the customer-managed ShareFile storage zones controller. This flaw could allow an unauthorized attacker to gain remote control of the controller. Such a compromise could lead to significant business risk, including unauthorized access to or modification of sensitive data and disruption of business operations.

  • Customer-managed ShareFile storage zones controller
  • Unauthenticated remote compromise
  • Data loss or unauthorized access

Attack Path

How an attacker could exploit the issue

A vulnerability exists in the customer-managed ShareFile storage zones controller that could allow an unauthenticated attacker to remotely compromise the controller. This could lead to unauthorized access and manipulation of data. The attack vector involves an unauthenticated attacker reaching the storage zones controller from a network.

  • Exposure condition: Network-accessible ShareFile storage zones controller.
  • Attacker starting point: External network.
  • Trigger and result: Attacker gains remote control.

Live Threat

Current exploitation, exposure, and threat context

A critical vulnerability in the customer-managed ShareFile storage zones controller presents a significant risk. Unauthenticated attackers could remotely compromise these controllers, potentially leading to unauthorized access and control over sensitive data. The high exploitability and impact indicate a serious threat to affected organizations.

  • Likely attacker skill: Low.
  • Required access: None.
  • Business risk: High urgency.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

A critical vulnerability has been identified in the customer-managed ShareFile storage zones controller. This vulnerability, if exploited, could enable an unauthenticated attacker to gain remote control over the affected controller. Organizations using this product should take immediate action to address this risk.

  • Find all exposed ShareFile storage zones controllers.
  • Isolate or reduce exposure of these assets.
  • Apply vendor fixes, verify, and monitor.

Frequently asked questions

What is the Citrix ShareFile storage zones controller?

The customer-managed ShareFile storage zones controller is a component used for managing file storage and collaboration within Citrix ShareFile. It acts as a gateway for file transfers and remote access, making it an internet-accessible endpoint for users to interact with their stored files.

How does CVE-2023-24489 enable a compromise?

CVE-2023-24489 is an improper access control vulnerability. This weakness allows an unauthenticated attacker to remotely gain control over the storage zones controller without needing any credentials or special access.

What are the preconditions for an attacker to exploit this vulnerability?

An attacker can exploit this vulnerability without any prior authentication or access. The main precondition is that the ShareFile storage zones controller must be reachable from a network, allowing the attacker to send malicious requests to it.

Why should I care about this vulnerability?

This vulnerability is particularly relevant because the ShareFile storage zones controller is often internet-facing, as indicated by its classification as external. This means systems running this software could be directly targeted by attackers from the internet.

What is the first step to address this threat?

The immediate first step is to identify all instances of the customer-managed ShareFile storage zones controller that are accessible. After identification, you should take actions to isolate or reduce their exposure to the network and apply any available vendor fixes.

References