CVE-2024-48352 in Meeting Server
Summary
by MITRE • 11/01/2024
Yealink Meeting Server before V26.0.0.67 is vulnerable to sensitive data exposure in the server response via sending HTTP request with enterprise ID.
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Analysis
by VulDB Data Team • 11/06/2024
The vulnerability identified as CVE-2024-48352 affects Yealink Meeting Server versions prior to V26.0.0.67, presenting a critical sensitive data exposure risk through improper handling of HTTP requests containing enterprise IDs. This flaw represents a significant security weakness that could enable unauthorized access to confidential information within enterprise communication systems. The vulnerability stems from inadequate input validation and response handling mechanisms that fail to properly sanitize or restrict access based on enterprise identifiers, creating potential pathways for data leakage.
The technical implementation of this vulnerability involves the server's response handling mechanism when processing HTTP requests that include enterprise ID parameters. When an attacker sends a specially crafted HTTP request containing a specific enterprise ID, the server responds with sensitive data that should be restricted to authorized users within that enterprise context. This behavior violates fundamental security principles of access control and data isolation, allowing potential attackers to extract confidential information without proper authentication or authorization. The flaw operates at the application layer and demonstrates poor input validation practices that can be categorized under CWE-20, which addresses improper input validation.
The operational impact of this vulnerability extends beyond simple data exposure, potentially enabling more sophisticated attacks within enterprise environments. An attacker could leverage this weakness to gather information about different enterprises using the same meeting server instance, potentially compromising multiple organizations simultaneously. The exposure could include user credentials, meeting details, enterprise configurations, or other sensitive operational data that would typically be protected within a secure enterprise communication platform. This vulnerability directly impacts the confidentiality aspect of the CIA triad and could facilitate further attacks such as privilege escalation or lateral movement within affected networks.
Security professionals should immediately implement mitigations including updating to Yealink Meeting Server V26.0.0.67 or later versions that contain the necessary patches addressing this vulnerability. Network segmentation and access control measures should be enhanced to limit exposure of the meeting server to unauthorized networks. Additionally, monitoring should be implemented to detect anomalous HTTP request patterns that might indicate exploitation attempts. Organizations should also conduct thorough security assessments of their meeting server configurations and review access controls to ensure proper enterprise isolation. This vulnerability aligns with ATT&CK technique T1071.004 for application layer protocol usage and T1566 for credential harvesting, making it particularly concerning for enterprise security posture. The flaw demonstrates the importance of proper access control implementation and input validation in preventing unauthorized data access within enterprise communication platforms.