CVE-2022-3224 in parse-url
Summary
by MITRE • 09/15/2022
Misinterpretation of Input in GitHub repository ionicabizau/parse-url prior to 8.1.0.
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Analysis
by VulDB Data Team • 10/18/2022
The vulnerability identified as CVE-2022-3224 affects the ionicabizau/parse-url repository, a popular JavaScript library used for parsing URLs and extracting components from web addresses. This issue represents a misinterpretation of input where the library fails to properly validate and sanitize user-provided URL strings before processing them. The vulnerability exists in versions prior to 8.1.0, indicating that developers who have not updated to the latest release remain exposed to potential security risks. The root cause lies in the library's insufficient handling of malformed or specially crafted URL inputs that could lead to unexpected behavior during parsing operations.
The technical flaw manifests when the parse-url library encounters input that contains unexpected characters, encoding sequences, or malformed URL structures. This misinterpretation can result in the library producing incorrect parsing results or potentially allowing attackers to manipulate the parsing logic through crafted input. The vulnerability falls under CWE-20, which describes improper input validation, and represents a classic example of how inadequate sanitization of user data can lead to security issues. When attackers provide malicious input, the library may interpret certain sequences in unintended ways, potentially leading to information disclosure, denial of service, or other unexpected outcomes.
The operational impact of this vulnerability extends beyond simple parsing errors as it affects any application or system that relies on the ionicabizau/parse-url library for URL processing. In environments where user input is processed through this library, attackers could potentially exploit the misinterpretation to inject malicious data or manipulate parsed URL components. This could lead to various security consequences including but not limited to redirect attacks, data corruption, or even potential code execution in scenarios where parsed URLs are subsequently used in sensitive operations. The vulnerability particularly affects web applications, APIs, and services that handle user-provided URLs or URI strings as part of their normal operation.
Mitigation strategies for CVE-2022-3224 primarily involve updating to version 8.1.0 or later of the ionicabizau/parse-url library, which contains the necessary fixes to properly handle input validation and sanitization. Organizations should conduct thorough dependency audits to identify all systems using this library and ensure timely updates are deployed across their infrastructure. Additionally, implementing proper input validation at multiple layers of the application architecture can provide defense-in-depth measures against similar vulnerabilities. Security teams should monitor for any related vulnerabilities in the broader ecosystem of URL parsing libraries and consider implementing automated scanning tools to detect vulnerable dependencies in their code repositories. The fix implemented in version 8.1.0 addresses the core input misinterpretation issue by strengthening validation mechanisms and ensuring proper handling of edge cases in URL parsing operations.