CVE-2023-50355 in Sametime
Summary
by MITRE • 10/24/2024
HCL Sametime is impacted by the error messages containing sensitive information. An attacker can use this information to launch another, more focused attack.
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Analysis
by VulDB Data Team • 11/01/2024
The vulnerability identified as CVE-2023-50355 affects HCL Sametime, a unified communications platform that enables real-time collaboration through instant messaging, voice, and video capabilities. This security flaw represents a classic information disclosure vulnerability where error messages generated by the system inadvertently expose sensitive internal information to unauthorized users. The issue stems from inadequate error handling mechanisms within the application's response processing, allowing malicious actors to access potentially valuable data that should remain confidential.
The technical nature of this vulnerability aligns with CWE-209, which specifically addresses "Information Exposure Through an Error Message" in software systems. When the HCL Sametime platform encounters processing errors or encounters unexpected conditions during user interactions, it generates error responses that contain detailed system information including internal paths, configuration details, or diagnostic data. These error messages are not properly sanitized before being returned to the client, creating an information leakage scenario that violates fundamental security principles of least privilege and defense in depth.
From an operational perspective, this vulnerability significantly increases the attack surface for potential adversaries who can leverage the exposed information to craft more sophisticated and targeted attacks against the HCL Sametime infrastructure. The sensitive data revealed through error messages may include system architecture details, version information, database configurations, or network topology elements that could be used to identify additional vulnerabilities or plan more effective exploitation strategies. This information disclosure creates a pathway for attackers to move laterally within the network or to target specific components of the communications platform with greater precision.
The impact of this vulnerability extends beyond simple information exposure as it enables advanced persistent threat actors to conduct reconnaissance activities with minimal effort. According to ATT&CK framework domain T1083 (File and Directory Discovery) and T1069 (Permission Groups Discovery), attackers can use the leaked information to better understand the target environment and identify potential privilege escalation opportunities. The vulnerability essentially provides an automated reconnaissance tool to threat actors who can systematically probe the system to gather intelligence about its internal workings and security configurations.
Organizations utilizing HCL Sametime should implement immediate mitigations including comprehensive error handling modifications that ensure all error responses are generic and do not contain sensitive information. The recommended approach involves implementing centralized error management systems that sanitize all error outputs and replace detailed technical information with user-friendly messages that provide minimal operational context. Additionally, regular security assessments should be conducted to verify that no other components within the Sametime ecosystem are suffering from similar information disclosure vulnerabilities. System administrators should also consider implementing web application firewalls and intrusion detection systems that can monitor for unusual error message patterns that might indicate exploitation attempts. The remediation process should include thorough code reviews to ensure that all error handling routines follow security best practices and that no sensitive data is inadvertently exposed through any communication channels.