Overview
The CVE-2025-6512 vulnerability is a critical security issue that affects clients with non-admin users on the BRAIN2 server. It allows a script to be integrated into a report and later be executed on the server with administrator rights. This type of vulnerability is crucial because it can potentially result in system compromise or data leakage, posing a severe risk to the integrity, confidentiality, and availability of the system. It is critical for organizations and individuals using the BRAIN2 server to be aware of this vulnerability and take immediate steps to mitigate the risk.
Vulnerability Summary
CVE ID: CVE-2025-6512
Severity: Critical (CVSS Score 10.0)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
BRAIN2 Server | All versions prior to patch
How the Exploit Works
The exploit takes advantage of the report generation feature in the BRAIN2 server. An attacker with non-admin access can inject a malicious script into a report. When this report is later executed on the server, it runs with administrator privileges. This execution could lead to unauthorized administrative access, system compromise, or potential data leakage.
Conceptual Example Code
Here’s a conceptual example of how the vulnerability might be exploited. This is a pseudocode representation of a malicious script being embedded in a report:
POST /generate_report HTTP/1.1
Host: BRAIN2_server.example.com
Content-Type: application/json
{
"report": {
"title": "Quarterly Financial Report",
"data": "...",
"script": "<script>malicious_code_here</script>"
}
}In this example, the “malicious_code_here” would be replaced by the specific actions the attacker wants to perform with admin privileges on the server.
Mitigation and Prevention
The most effective mitigation for this vulnerability is to apply the vendor patch. If this is not immediately possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help provide temporary mitigation. These tools can potentially detect and block attempts to exploit this vulnerability. However, they should not be seen as a long-term solution, and applying the vendor patch should be prioritized.
Remember, any mitigations should be tested in a non-production environment first to ensure they do not disrupt normal operations.