CVE-2014-3400 in WebEx Meetings Server
Summary
by MITRE
Cisco WebEx Meetings Server allows remote authenticated users to obtain sensitive information by reading logs, aka Bug IDs CSCuq36417 and CSCuq40344.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 07/05/2017
The vulnerability identified as CVE-2014-3400 affects Cisco WebEx Meetings Server, a widely deployed collaboration platform that enables organizations to conduct virtual meetings and webinars. This security flaw represents a critical information disclosure issue that undermines the confidentiality controls of the affected system. The vulnerability manifests when authenticated users with legitimate access credentials attempt to exploit a weakness in the server's logging mechanisms to gain unauthorized access to sensitive operational data that should remain protected within the system's internal logging infrastructure.
The technical implementation of this vulnerability stems from inadequate access controls and improper privilege management within the WebEx Meetings Server's logging subsystem. When legitimate authenticated users interact with the system, they can leverage their credentials to read system logs that contain sensitive information including but not limited to user session details, system configuration data, network communication patterns, and potentially authentication tokens or other credentials. This occurs due to insufficient validation of user privileges when accessing log files, allowing users to bypass normal access restrictions that should prevent unauthorized reading of system diagnostic information.
From an operational impact perspective, this vulnerability creates significant risk for organizations relying on Cisco WebEx Meetings Server for business communications and collaboration. The exposure of sensitive log information could lead to comprehensive reconnaissance of the system's internal operations, potentially revealing network topology details, user access patterns, system vulnerabilities, and operational procedures that adversaries could exploit for further attacks. The vulnerability affects the confidentiality aspect of the CIA triad, as it allows unauthorized information disclosure that could compromise the integrity and availability of the overall system through indirect means. Organizations may face regulatory compliance violations and reputational damage when such sensitive information is compromised.
The vulnerability aligns with CWE-200, which addresses "Information Exposure," and represents a classic case of improper access control in system logging components. From an adversarial perspective, this flaw maps to ATT&CK technique T1083, "File and Directory Discovery," as attackers could use the vulnerability to enumerate system information through log file access. Additionally, the weakness could enable further exploitation pathways such as T1552, "Unsecured Credentials," if the logs contain authentication-related information. Organizations should consider implementing comprehensive monitoring of log file access patterns as part of their defensive strategy, since legitimate users with appropriate credentials could potentially abuse this vulnerability without raising immediate alerts.
Mitigation strategies for this vulnerability include applying the official Cisco security patches and updates released to address the specific logging access control issues. Organizations should also implement strict access controls for log files, ensuring that only authorized system administrators with proper need-to-know basis can access diagnostic information. Network segmentation and privilege separation practices should be enforced to minimize the attack surface, while regular security audits should verify that logging mechanisms properly enforce access controls. Additionally, organizations should consider implementing log file integrity monitoring solutions that can detect unauthorized access attempts to sensitive system information, providing an additional layer of defense against potential exploitation of this type of information disclosure vulnerability.