CVE-2010-0502 in Mac OS X
Summary
by MITRE
iChat Server in Apple Mac OS X Server before 10.6.3, when group chat is used, does not perform logging for all types of messages, which might allow remote attackers to avoid message auditing via an unspecified selection of message type.
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Analysis
by VulDB Data Team • 05/04/2026
The vulnerability described in CVE-2010-0502 affects iChat Server functionality within Apple Mac OS X Server versions prior to 10.6.3, specifically when group chat features are utilized. This represents a significant security gap in audit and monitoring capabilities that could enable malicious actors to bypass detection mechanisms. The flaw manifests in the server's logging mechanisms where not all message types are recorded, creating potential blind spots in security monitoring and compliance enforcement. This issue directly impacts organizations that rely on comprehensive message logging for regulatory compliance, security auditing, or internal policy enforcement within their communication infrastructure.
The technical implementation flaw stems from incomplete logging logic within the iChat Server's group chat functionality. When users participate in group conversations, the system fails to log certain message types that are selected through an unspecified mechanism, allowing attackers to exploit this inconsistency in logging behavior. This incomplete logging creates a potential attack surface where malicious actors can craft messages that evade detection while maintaining their communication objectives. The vulnerability aligns with CWE-778, which addresses insufficient logging, and specifically relates to improper handling of message type selection within chat protocols. The issue demonstrates a critical failure in the principle of least privilege and audit completeness, where the system does not provide comprehensive visibility into all communication activities.
Operationally, this vulnerability creates substantial risks for organizations that depend on message auditing for compliance purposes, particularly in regulated environments such as financial services, healthcare, or government sectors. Attackers could exploit this weakness to conduct activities that would otherwise be detectable through normal audit trails, potentially including the dissemination of inappropriate content, unauthorized information sharing, or malicious communication patterns. The impact extends beyond simple privacy concerns to encompass potential regulatory violations, internal policy breaches, and compromised security monitoring capabilities. Organizations utilizing Mac OS X Server for group chat communications face the risk of undetected malicious activities, making this vulnerability particularly concerning for enterprises with strict compliance requirements.
Mitigation strategies should prioritize immediate patching of affected Mac OS X Server installations to version 10.6.3 or later, which addresses the logging inconsistency. Organizations should also implement additional monitoring mechanisms to detect potential exploitation attempts through anomaly detection systems that can identify unusual communication patterns. Network-level monitoring tools should be deployed to supplement the incomplete logging capabilities, providing alternative visibility into chat activities. Security teams should conduct comprehensive audits of their communication systems to identify any other potential logging gaps and establish more robust monitoring procedures. This vulnerability reinforces the importance of complete logging implementations as outlined in the NIST Cybersecurity Framework and aligns with ATT&CK technique T1567 for bypassing security controls through logging manipulation, emphasizing the need for comprehensive audit coverage in all communication protocols.