Overview
The cybersecurity landscape is, unfortunately, a constantly evolving field, and today we will delve deep into one of the recently discovered vulnerabilities, known as CVE-2025-27215. This vulnerability is an Improper Access Control flaw that affects UniFi Connect Display Cast devices. It has been reported that if a malicious actor gains authentication in the API of these devices, it could make unsupported changes to the system. This poses a substantial risk to businesses and individuals using these devices, as it opens up potential for system compromise or data leakage.
Vulnerability Summary
CVE ID: CVE-2025-27215
Severity: High (CVSS score 8.1)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise or data leakage
Affected Products
Escape the Surveillance Era
Most apps won’t tell you the truth.
They’re part of the problem.
Phone numbers. Emails. Profiles. Logs.
It’s all fuel for surveillance.
Ameeba Chat gives you a way out.
- • No phone number
- • No email
- • No personal info
- • Anonymous aliases
- • End-to-end encrypted
Chat without a trace.
Product | Affected Versions
UniFi Connect Display Cast | Version 1.10.3 and earlier
UniFi Connect Display Cast Pro | Version 1.0.89 and earlier
UniFi Connect Display Cast Lite | Version 1.0.3 and earlier
How the Exploit Works
The vulnerability resides in the Improper Access Control mechanism of UniFi Connect Display Cast devices. An attacker, after gaining authentication in the API, can exploit this flaw to make unsupported changes to the system. This can potentially allow the attacker to compromise the system, alter its functionality, or steal sensitive data.
Conceptual Example Code
The following is a hypothetical example of how the vulnerability might be exploited. This is a simulated HTTP request where a malicious actor sends a payload designed to manipulate the system.
POST /improperaccess/endpoint HTTP/1.1
Host: target.example.com
Content-type: application/json
Authorization: Bearer [malicious_actor_token]
{ "unsupported_changes": "[malicious_code]" }In this example, the `unsupported_changes` field is used to inject malicious code into the system. It’s important to note that this is a conceptual example and the actual exploit may vary based on the system and the attacker’s intentions.
Mitigation Guidance
Users are strongly advised to update their UniFi Connect Display Cast devices to mitigate this vulnerability:
– Update UniFi Connect Display Cast to Version 1.10.7 or later
– Update UniFi Connect Display Cast Pro to Version 1.0.94 or later
– Update UniFi Connect Display Cast Lite to Version 1.1.8 or later
In case the patch cannot be applied immediately, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as a temporary mitigation measure to block or detect malicious requests exploiting this vulnerability.
