CVE-2016-10543 in call
Summary
by MITRE
call is an HTTP router that is primarily used by the hapi framework. There exists a bug in call versions 2.0.1-3.0.1 that does not validate empty parameters, which could result in invalid input bypassing the route validation rules.
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Analysis
by VulDB Data Team • 03/17/2023
The vulnerability identified as CVE-2016-10543 affects the call HTTP router component within the hapi framework ecosystem, representing a significant security weakness that undermines input validation mechanisms. This flaw exists specifically in call versions ranging from 2.0.1 through 3.0.1, creating a window of opportunity for malicious actors to exploit improper parameter handling. The core issue lies in the router's failure to properly validate empty parameters, which allows malformed or intentionally crafted inputs to bypass established route validation rules. This vulnerability directly impacts the integrity of the framework's routing system and can potentially lead to unauthorized access or data manipulation.
The technical implementation of this vulnerability stems from inadequate input sanitization within the call router's parameter processing logic. When empty parameters are submitted to routes, the system fails to recognize them as invalid inputs that should be rejected or properly handled according to validation rules. This weakness creates a pathway where attackers can craft requests containing empty or malformed parameters that inadvertently bypass the validation checks designed to prevent malicious input from reaching application endpoints. The flaw operates at the HTTP routing layer, making it particularly dangerous as it can affect multiple application components that rely on proper parameter validation for security.
From an operational standpoint, this vulnerability presents substantial risks to applications using affected versions of the hapi framework, as it can enable attackers to bypass security controls that depend on proper parameter validation. The impact extends beyond simple input validation failures, potentially allowing for injection attacks, path traversal, or other malicious activities that exploit the weakened routing security. Organizations running applications with vulnerable call versions face increased exposure to various attack vectors that could compromise application integrity, data confidentiality, and system availability. The vulnerability's presence in multiple versions within the 2.0.1-3.0.1 range means that a broad spectrum of applications could be affected, depending on their specific framework implementations.
The mitigation strategy for CVE-2016-10543 requires immediate action to upgrade the call router component to versions that properly validate empty parameters and implement robust input sanitization. Organizations should conduct comprehensive audits of their hapi framework implementations to identify all instances of vulnerable call versions and prioritize updates accordingly. Additionally, implementing additional layers of input validation at the application level can serve as a temporary compensating control while full upgrades are implemented. Security teams should also consider monitoring network traffic for suspicious parameter patterns that might indicate exploitation attempts targeting this specific vulnerability.
This vulnerability aligns with CWE-20, which addresses improper input validation, and represents a classic example of how insufficient parameter handling can create security weaknesses in web application frameworks. From an ATT&CK perspective, this flaw could enable techniques such as command and control communication or privilege escalation through route manipulation, particularly when combined with other vulnerabilities in the application stack. The vulnerability demonstrates the critical importance of proper input validation at all layers of application security, as weaknesses in routing components can have cascading effects on overall system security posture and can potentially be leveraged to bypass more sophisticated security controls.