Overview
The CVE-2025-0505 vulnerability is a critical security flaw found in Arista CloudVision systems, both virtual and physical on-premise deployments. This vulnerability is significant as it allows attackers to exploit Zero Touch Provisioning to gain admin privileges on the CloudVision system. This results in them having more permissions than necessary, which can then be used to query or manipulate system state for devices under management. It is worth mentioning that CloudVision as-a-service deployments are not affected by this vulnerability.
The severity of this vulnerability underscores the importance of swift action and remediation by system administrators managing Arista CloudVision systems. The potential for system compromise and data leakage is high, posing a significant risk to organizations that have deployed these systems.
Vulnerability Summary
CVE ID: CVE-2025-0505
Severity: Critical, CVSS score of 10.0
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise, data leakage
Affected Products
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Product | Affected Versions
Arista CloudVision (Physical Deployments) | All versions prior to the vendor patch
Arista CloudVision (Virtual Deployments) | All versions prior to the vendor patch
How the Exploit Works
This exploit takes advantage of a flaw in the Zero Touch Provisioning feature of Arista CloudVision systems. An attacker, without needing any specific user privileges or interactions, can send specially crafted network requests to the system. These requests can trick the system into granting the attacker admin-level privileges. Once this level of access is gained, the attacker can query or manipulate system state for devices under management, potentially leading to system compromise and data leakage.
Conceptual Example Code
Here’s a
conceptual
example of how this vulnerability could be exploited:
POST /zerotouch/provisioning HTTP/1.1
Host: cloudvision.example.com
Content-Type: application/json
{
"request_type": "provision",
"credentials": {
"admin_privileges": "true"
}
}In the above example, a malicious actor sends a POST request to the Zero Touch Provisioning endpoint, requesting provisioning with admin privileges. If the system is vulnerable, it would grant these privileges, allowing the attacker broad access to system features and data.