CVE-2018-0263 in Meeting Server
Summary
by MITRE
A vulnerability in Cisco Meeting Server (CMS) could allow an unauthenticated, adjacent attacker to access services running on internal device interfaces of an affected system. The vulnerability is due to incorrect default configuration of the device, which can expose internal interfaces and ports on the external interface of the system. A successful exploit could allow the attacker to gain unauthenticated access to configuration and database files and sensitive meeting information on an affected system. This vulnerability affects Cisco Meeting Server (CMS) 2000 Platforms that are running a CMS Software release prior to Release 2.2.13 or Release 2.3.4. Cisco Bug IDs: CSCvg76471.
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Analysis
by VulDB Data Team • 03/22/2023
The vulnerability identified as CVE-2018-0263 represents a critical misconfiguration issue within Cisco Meeting Server (CMS) 2000 platforms that exposes internal system interfaces to external network access without proper authentication requirements. This flaw stems from improper default configuration settings that inadvertently bind internal service interfaces to external network interfaces, creating an attack vector that allows adjacent network attackers to bypass normal access controls and gain unauthorized access to sensitive system resources. The vulnerability specifically affects CMS systems running software releases prior to 2.2.13 or 2.3.4, indicating that Cisco addressed this issue through subsequent software updates that properly isolate internal services from external exposure.
The technical implementation of this vulnerability involves the improper binding of internal network services to external-facing interfaces, creating a direct pathway for attackers to access configuration files, database contents, and meeting-related information without requiring authentication credentials. This misconfiguration allows attackers to enumerate and access internal system resources that should normally be restricted to authorized administrative access only. The flaw essentially creates a backdoor mechanism where internal services become accessible through external network connections, violating fundamental network segmentation principles and exposing sensitive data including user credentials, meeting schedules, and system configuration parameters. This type of vulnerability aligns with CWE-284, which addresses improper access control in software systems, and represents a classic case of insecure default configuration that undermines the security posture of the affected device.
The operational impact of CVE-2018-0263 extends beyond simple unauthorized access to include potential data breaches, system compromise, and disruption of collaborative meeting services that organizations rely upon for business operations. An attacker exploiting this vulnerability could obtain sensitive meeting information including participant details, meeting schedules, and potentially confidential communication content that would normally be protected within the internal network environment. The exposure of configuration files and database contents could provide attackers with additional attack vectors and system intelligence to conduct more sophisticated attacks against the affected infrastructure. This vulnerability particularly affects organizations using Cisco Meeting Server for video conferencing and collaboration services, potentially compromising the security of business communications and sensitive corporate data exchanges.
Mitigation strategies for this vulnerability require immediate implementation of software updates to CMS platforms to ensure proper network interface configuration and prevent internal service exposure. Organizations should verify that their CMS systems are running software releases 2.2.13 or 2.3.4, which contain the necessary patches to address the default configuration issues. Network segmentation measures should be implemented to ensure that internal services remain isolated from external network access, and access controls should be reviewed to ensure that only authorized administrative users can access system configuration and database resources. Additionally, organizations should conduct network audits to identify any other devices that may be subject to similar misconfigurations and implement proper firewall rules to restrict access to internal services. The vulnerability demonstrates the critical importance of secure configuration management practices and highlights the necessity of regular security assessments to identify and remediate configuration flaws that could compromise system security. According to ATT&CK framework, this vulnerability maps to T1046 Network Service Scanning and T1071 Application Layer Protocol, as attackers can use this access to conduct further reconnaissance and establish persistent access to the compromised system.