Overview
CVE-2025-8020 is a security issue that affects all versions of the package private-ip. It is a Server-Side Request Forgery (SSRF) vulnerability, where an attacker can exploit the flaw to provide an IP or hostname that resolves to a multicast IP address, which is not included as part of the private IP ranges in the package’s source code. This vulnerability is of critical importance due to its high potential for system compromise or data leakage, thereby necessitating prompt attention and action.
Vulnerability Summary
CVE ID: CVE-2025-8020
Severity: High (CVSS: 8.2)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System Compromise or Data Leakage
Affected Products
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Product | Affected Versions
Private-IP Package | All versions
How the Exploit Works
The exploit works by taking advantage of the SSRF vulnerability in the private-ip package. In this vulnerability, an attacker can provide an IP or hostname that resolves to a multicast IP address (224.0.0.0/4) which is not included as part of the private IP ranges in the package’s source code. This allows the attacker to bypass the server’s defenses and gain unauthorized access to the system or leak data.
Conceptual Example Code
Here is a conceptual example of how the vulnerability might be exploited in an HTTP request:
GET /api/request?target=224.0.0.0 HTTP/1.1
Host: vulnerable.example.comIn this example, the attacker manipulates the `target` parameter in the URL to point to a multicast IP address, exploiting the SSRF vulnerability in the private-ip package.
Mitigation
To mitigate this vulnerability, it is recommended to apply the vendor patch as soon as it becomes available. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These tools can help to monitor and restrict the outbound traffic from your server, preventing the exploitation of the SSRF vulnerability.