CVE-2011-3692 in Enterprise Messenger Server
Summary
by MITRE
NetSaro Enterprise Messenger Server 2.0 stores cleartext console credentials in configuration.xml, which allows local users to obtain sensitive information by reading this file and performing a base64 decoding step.
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Analysis
by VulDB Data Team • 11/20/2021
The vulnerability identified as CVE-2011-3692 represents a critical security flaw in NetSaro Enterprise Messenger Server version 2.0 that exposes sensitive authentication credentials through improper configuration file handling. This issue falls under the category of insecure credential storage, where administrative console login details are persistently stored in plain text format within the application's configuration file. The vulnerability specifically affects local users who can access the system's file structure and read the configuration.xml file, which contains the cleartext credentials that require only a base64 decoding operation to be fully exploitable.
The technical implementation of this vulnerability demonstrates a fundamental failure in secure credential management practices within the messaging server application. When the NetSaro Enterprise Messenger Server initializes, it writes console administrative credentials directly to the configuration.xml file without implementing any form of encryption or obfuscation. This cleartext storage approach violates established security principles and creates an easily exploitable vector for privilege escalation attacks. The base64 encoding step mentioned in the vulnerability description indicates that while the credentials are encoded, they are not properly secured, as base64 encoding is a simple transformation that provides no actual cryptographic protection and can be easily reversed by any attacker with access to the file.
From an operational impact perspective, this vulnerability creates a significant risk for organizations deploying NetSaro Enterprise Messenger Server 2.0, as local system users can trivially obtain administrative access to the console interface. The attack surface is particularly concerning because it requires minimal technical expertise to exploit, making it accessible to both malicious insiders and external attackers who have gained local system access. This vulnerability directly maps to CWE-312 (Cleartext Storage of Sensitive Information) and CWE-522 (Insufficiently Protected Credentials) within the Common Weakness Enumeration framework, highlighting the application's failure to implement proper credential protection mechanisms. The implications extend beyond simple credential theft, as administrative access to the console could enable attackers to modify server configurations, access sensitive communications, or establish persistent backdoors within the network infrastructure.
The attack pattern associated with this vulnerability aligns with several techniques documented in the MITRE ATT&CK framework, particularly those related to credential access and privilege escalation. Attackers can leverage this weakness through the T1552 (Credentials in Files) technique, where they identify and extract stored credentials from configuration files. Additionally, the vulnerability supports the T1068 (Exploitation for Privilege Escalation) tactic, as local access to administrative credentials enables attackers to gain elevated privileges within the messaging system. Organizations should consider implementing file system access controls, regular security auditing, and proper credential management practices to address this vulnerability. The remediation approach requires immediate implementation of encrypted credential storage mechanisms, regular configuration file access monitoring, and comprehensive security awareness training for system administrators to prevent exploitation of such insecure practices.