CVE-2024-48346 in xtreme1
Summary
by MITRE • 10/30/2024
xtreme1 <= v0.9.1 contains a Server-Side Request Forgery (SSRF) vulnerability in the /api/data/upload path. The vulnerability is triggered through the fileUrl parameter, which allows an attacker to make arbitrary requests to internal or external systems.
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Analysis
by VulDB Data Team • 11/01/2024
The vulnerability identified as CVE-2024-48346 represents a critical Server-Side Request Forgery flaw affecting xtreme1 versions 0.9.1 and earlier. This security weakness resides within the application's /api/data/upload endpoint, where the fileUrl parameter fails to properly validate or sanitize user-supplied input. The flaw enables remote attackers to manipulate the application's behavior by submitting crafted URLs that bypass normal access controls and potentially access internal network resources or external systems that should remain protected from direct exposure. Such vulnerabilities are particularly dangerous because they can be exploited from outside the network perimeter to probe internal systems that would normally be isolated from external traffic.
The technical implementation of this SSRF vulnerability stems from insufficient input validation mechanisms within the fileUrl parameter processing logic. When an attacker submits a malicious URL through the fileUrl parameter, the application performs a server-side request without proper sanitization or validation of the target URI. This allows the application to make HTTP requests to arbitrary destinations including internal IP addresses, loopback interfaces, or other systems that should not be accessible through the exposed API endpoint. The vulnerability aligns with CWE-918, which specifically addresses Server-Side Request Forgery in the context of web applications, and represents a variant of the broader class of insecure direct object references that can lead to unauthorized access to internal resources.
The operational impact of this vulnerability extends beyond simple data exfiltration or service disruption. An attacker could leverage this flaw to perform internal network reconnaissance by accessing internal services that might be running on different ports or using different protocols. The vulnerability could also enable access to internal databases, administrative interfaces, or other sensitive systems that are not directly exposed to the internet. Furthermore, this weakness could potentially be chained with other vulnerabilities to escalate privileges or gain unauthorized access to system resources. The threat actor could exploit this vulnerability to access sensitive configuration files, credentials stored in internal systems, or even to pivot to other systems within the network infrastructure, making this a particularly dangerous security flaw in enterprise environments.
Security mitigations for CVE-2024-48346 should focus on implementing strict input validation and sanitization for all user-supplied parameters, particularly those used in URL construction or HTTP request processing. Organizations should implement a whitelist-based approach to validate the fileUrl parameter, ensuring that only pre-approved domains or IP addresses are accepted for file downloads. Network-level controls such as firewalls and access control lists should be configured to restrict outbound connections from the application server to prevent unauthorized access to internal resources. Additionally, implementing proper URL parsing and validation libraries can help prevent common SSRF attack patterns. The vulnerability demonstrates the importance of following secure coding practices and adhering to the principle of least privilege in API design. Organizations should also consider implementing network segmentation and monitoring solutions to detect suspicious outbound requests that could indicate exploitation attempts. According to ATT&CK framework, this vulnerability maps to T1071.004 for Application Layer Protocol: DNS and T1046 for Network Service Scanning, highlighting the reconnaissance and lateral movement capabilities that such vulnerabilities can provide to threat actors. The recommended remediation includes immediate patching of the affected application version, implementation of proper input validation, and deployment of network monitoring solutions to detect and prevent unauthorized access attempts.