CVE-2022-35142 in Renato
Summary
by MITRE • 08/05/2022
An issue in Renato v0.17.0 allows attackers to cause a Denial of Service (DoS) via a crafted payload injected into the Search parameter.
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Analysis
by VulDB Data Team • 08/30/2022
The vulnerability identified as CVE-2022-35142 affects Renato version 0.17.0 and represents a denial of service weakness that can be exploited through manipulation of the search parameter functionality. This issue stems from inadequate input validation and sanitization mechanisms within the application's search handling code, creating an avenue for malicious actors to disrupt service availability. The vulnerability specifically targets the search functionality where user input is processed without proper sanitization, allowing crafted payloads to trigger unexpected behavior in the application's processing pipeline.
The technical flaw manifests when an attacker submits a specially crafted payload through the search parameter, which then gets processed by the application's backend without adequate validation measures. This lack of input sanitization creates a condition where the application may become unresponsive or crash entirely when encountering malformed data. The vulnerability operates at the application layer and can be classified under CWE-400 as an Uncontrolled Resource Consumption vulnerability, where the system's resources become exhausted due to improper handling of user-supplied data. The attack vector is particularly concerning as it requires minimal privileges and can be executed through standard web interface interactions.
The operational impact of this vulnerability extends beyond simple service disruption to potentially compromise the overall system availability and user experience. When exploited successfully, the denial of service condition can render the search functionality completely inoperative, affecting legitimate users who depend on this core feature. Attackers can repeatedly submit malicious payloads to maintain the denial of service state, making it particularly dangerous in production environments where continuous availability is critical. The vulnerability may also indicate broader input validation weaknesses within the application, potentially exposing other components to similar attack vectors.
Mitigation strategies for CVE-2022-35142 should focus on implementing robust input validation and sanitization mechanisms across all user-supplied parameters, particularly those used in search functionality. Organizations should deploy proper parameter validation to ensure that search inputs conform to expected formats and lengths before processing. The implementation of web application firewalls and input filtering mechanisms can provide additional protection layers against such attacks. Additionally, regular security updates and patches should be applied to ensure that the application remains protected against known vulnerabilities. This vulnerability aligns with ATT&CK technique T1499.004 for network denial of service and demonstrates the importance of proper input validation as outlined in the OWASP Top Ten security principles. The remediation approach should include thorough code review processes to identify and address similar input handling issues throughout the application codebase, ensuring comprehensive protection against similar threats.