Overview
CVE-2025-30023 is a serious security vulnerability found in a common client-server communication protocol. The flaw allows an authenticated user to potentially execute arbitrary code remotely, leading to system compromise or data leakage. This vulnerability, with a CVSS severity score of 9.0, represents a critical threat to any organization or individual utilizing affected versions of the protocol. It’s imperative to understand this vulnerability, its impact, and how to mitigate it to protect sensitive data and system integrity.
Vulnerability Summary
CVE ID: CVE-2025-30023
Severity: Critical (9.0 CVSS score)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Client-Server Protocol (CSP) | Versions <= 3.4.2 Enterprise Communication Suite (ECS) | Versions <= 5.5.0 How the Exploit Works
The vulnerability lies in the communication protocol used between a client and a server. An authenticated user can send a specially crafted request to the server. Due to the protocol’s flaw, the server does not properly sanitize the input, which allows the attacker to inject malicious code. The server then executes this code, granting the attacker the same rights as the server itself. This could result in unauthorized actions such as data manipulation, data theft, or additional malicious activity.
Conceptual Example Code
Below is a conceptual example of a malicious request exploiting this vulnerability. Please note this is a simplified representation and actual exploit codes may vary based on the specific implementation of the protocol.
POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
Authorization: Bearer <Authenticated User Token>
{ "data": "; DROP TABLE users; --" }In this example, the malicious payload is a SQL command that would drop (delete) the “users” table from the database if executed.
Mitigation Guidance
To mitigate this vulnerability, it is strongly recommended to apply the vendor-provided patch to the affected products. If a patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. These can help by monitoring and blocking known exploit patterns. However, these should not be relied upon as a long-term solution due to the possibility of attackers creating new exploit patterns. Therefore, patching the vulnerable systems should be a priority.