CVE-2024-22259 in Spring Framework
Summary
by MITRE • 03/16/2024
Applications that use UriComponentsBuilder in Spring Framework to parse an externally provided URL (e.g. through a query parameter) AND perform validation checks on the host of the parsed URL may be vulnerable to a open redirect https://cwe.mitre.org/data/definitions/601.html attack or to a SSRF attack if the URL is used after passing validation checks.
This is the same as CVE-2024-22243 https://spring.io/security/cve-2024-22243 , but with different input.
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Analysis
by VulDB Data Team • 04/15/2025
The vulnerability identified as CVE-2024-22259 represents a critical security flaw within Spring Framework applications that utilize UriComponentsBuilder for parsing external URLs. This vulnerability stems from improper handling of URL components when applications process user-provided input through query parameters or similar mechanisms. The flaw creates a pathway for attackers to manipulate URL parsing logic in ways that can lead to severe security consequences including open redirect attacks and server-side request forgery scenarios.
The technical implementation of this vulnerability occurs when applications employ UriComponentsBuilder to parse URLs received from external sources and subsequently validate the host component of these URLs. The flaw manifests when validation checks are performed on the parsed URL components, but the parsing mechanism fails to properly sanitize or normalize the input before validation occurs. This creates a scenario where an attacker can craft malicious URLs that pass validation checks while still containing redirect or SSRF payloads. The vulnerability is classified under CWE-601 as an open redirect vulnerability, where the application redirects users to malicious destinations without proper validation.
When exploited, this vulnerability enables attackers to perform open redirect attacks by crafting URLs that appear legitimate to the validation logic but contain malicious redirect targets. The impact extends beyond simple redirection as attackers can also leverage this weakness for server-side request forgery attacks, where the application may inadvertently make requests to internal systems or external malicious servers. The vulnerability is particularly dangerous because it operates at the URL parsing layer, making it difficult to detect through traditional input validation mechanisms and allowing attackers to bypass security controls that rely on host validation.
The operational impact of CVE-2024-22259 affects any Spring Framework application that processes external URLs through UriComponentsBuilder and performs host validation checks. Applications using this framework component are at risk regardless of their specific implementation details, as the vulnerability exists within the core parsing mechanism rather than in application-specific code. Organizations running Spring applications that accept user input through URL parameters, API endpoints, or any mechanism that involves external URL processing should immediately assess their exposure to this vulnerability.
Mitigation strategies for CVE-2024-22259 require immediate application of Spring Framework security patches and updates to address the underlying parsing logic. Organizations should implement additional input validation layers that go beyond simple host checking, including comprehensive URL normalization and strict protocol validation. Security teams should also consider implementing network-level controls such as firewall rules that restrict outbound connections from application servers to prevent potential SSRF exploitation. The vulnerability aligns with ATT&CK technique T1071.004 for application layer protocol manipulation and T1566 for phishing attacks through open redirects, making comprehensive monitoring and incident response procedures essential for organizations affected by this weakness.