CVE-2017-10153 in Communications WebRTC Session Controller
Summary
by MITRE
Vulnerability in the Oracle Communications WebRTC Session Controller component of Oracle Communications Applications (subcomponent: Security (Gson)). Supported versions that are affected are 7.0, 7.1 and 7.2. Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise Oracle Communications WebRTC Session Controller. While the vulnerability is in Oracle Communications WebRTC Session Controller, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Communications WebRTC Session Controller. CVSS 3.0 Base Score 6.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H).
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Analysis
by VulDB Data Team • 01/17/2021
The vulnerability identified as CVE-2017-10153 resides within the Oracle Communications WebRTC Session Controller component, specifically within the Security subcomponent that utilizes Gson library for JSON processing. This flaw affects Oracle Communications Applications versions 7.0, 7.1, and 7.2, representing a significant security weakness that can be exploited by attackers with minimal privileges and network access. The vulnerability's classification as difficult to exploit indicates that while the attack vector is accessible, it requires specific conditions to be met, yet the potential impact remains severe enough to warrant immediate attention. The attack surface extends beyond the primary target component, as successful exploitation can cascade to affect additional Oracle products within the communications ecosystem.
The technical nature of this vulnerability stems from improper input validation within the Gson library implementation, which processes JSON data structures used for communication within the WebRTC session controller. When maliciously crafted JSON payloads are processed by the affected system, the Gson parser fails to properly validate the input data, leading to potential memory corruption or unexpected behavior within the application's processing pipeline. This flaw manifests as a denial of service condition where the targeted component becomes unresponsive or enters a continuous crash loop, effectively rendering the service unavailable to legitimate users. The vulnerability's CVSS score of 6.3 reflects the high impact on availability while maintaining a moderate score for confidentiality and integrity impacts, indicating that the primary concern lies in service disruption rather than data compromise.
The operational impact of this vulnerability extends beyond simple service interruption, as it can cause cascading failures within the broader Oracle Communications infrastructure. When the WebRTC Session Controller experiences frequent crashes or hangs, it disrupts real-time communication services that depend on this component for session management and media processing. The complete denial of service condition affects not only the immediate target but can also impact downstream systems that rely on stable communication sessions, potentially affecting enterprise-grade telephony services, video conferencing platforms, and other real-time communication applications. Organizations using these affected versions face significant risk of service degradation that can impact business continuity and customer satisfaction.
Mitigation strategies for CVE-2017-10153 should prioritize immediate patching of affected Oracle Communications Applications versions through official Oracle security updates. Organizations should implement network segmentation to limit access to the vulnerable component and deploy intrusion detection systems to monitor for anomalous JSON data patterns that may indicate exploitation attempts. The vulnerability aligns with CWE-20 (Improper Input Validation) and demonstrates characteristics consistent with ATT&CK technique T1499.004 (Endpoint Denial of Service) where adversaries target application components to cause service disruption. Network administrators should also consider implementing rate limiting and input validation controls at network boundaries to prevent exploitation attempts. Additionally, organizations should conduct comprehensive vulnerability assessments to identify any other instances of the affected Gson library versions within their infrastructure, as this vulnerability could potentially exist in other Oracle products or third-party applications using the same vulnerable library version.