CVE-2022-21404 in Helidon
Summary
by MITRE • 04/20/2022
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Reactive WebServer). Supported versions that are affected are 1.4.10 and 2.0.0-RC1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in takeover of Helidon. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 04/25/2022
The vulnerability identified as CVE-2022-21404 represents a critical security flaw within Oracle Fusion Middleware's Helidon component, specifically within its Reactive WebServer module. This vulnerability affects version 1.4.10 and 2.0.0-RC1 of the Helidon framework, which is widely utilized for building microservices and reactive applications in enterprise environments. The Helidon framework serves as a foundational element for modern application architectures, making this vulnerability particularly concerning for organizations relying on its functionality. The vulnerability's classification as difficult to exploit indicates that while it requires specific conditions for successful exploitation, the potential impact remains severe enough to warrant immediate attention from security teams.
The technical nature of this vulnerability stems from insufficient input validation and potentially improper handling of HTTP requests within the Reactive WebServer component. Attackers can leverage this flaw through unauthenticated network access via HTTP protocols, eliminating the need for credentials or prior system compromise. The vulnerability's CVSS score of 8.1 reflects the high severity impact across all three core security principles: confidentiality, integrity, and availability. This means that successful exploitation could enable attackers to completely take over the Helidon application instance, potentially leading to full system compromise. The attack vector requires network access but does not require user interaction or privileges, making it particularly dangerous in environments where Helidon applications are exposed to external networks.
The operational impact of this vulnerability extends beyond simple application compromise, potentially affecting entire enterprise infrastructures that depend on Helidon-based services. Organizations running vulnerable versions face risks including data breaches, service disruption, and potential lateral movement within their network infrastructure. The Reactive WebServer component's role in handling HTTP requests makes it a prime target for attackers seeking to establish persistent access or exfiltrate sensitive information. This vulnerability aligns with CWE-20, which addresses improper input validation, and represents a classic example of how inadequate security controls in web server components can lead to complete system compromise. The CVSS vector specifically indicates network-based attack accessibility with high complexity requirements, suggesting that while exploitation is not trivial, the potential damage justifies immediate remediation.
Organizations should prioritize immediate remediation efforts by upgrading to patched versions of Helidon, as the vulnerability affects only specific release versions. Security teams should implement network segmentation and monitoring to detect potential exploitation attempts, particularly focusing on unusual HTTP traffic patterns or unauthorized access attempts. The vulnerability's characteristics align with ATT&CK techniques related to initial access through network services and privilege escalation via application compromise. Additional mitigations should include implementing web application firewalls, restricting external access to Helidon applications, and conducting thorough security assessments of all affected systems. Regular vulnerability scanning and penetration testing should be enhanced to identify similar issues in other components of the Fusion Middleware stack, as this vulnerability demonstrates the importance of maintaining current security postures in enterprise application frameworks.