CVE-2011-3574 in Communications Unified
Summary
by MITRE
Unspecified vulnerability in Oracle Communications Unified 7.0 allows local users to affect confidentiality and integrity via unknown vectors related to Calendar Server.
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Analysis
by VulDB Data Team • 04/19/2017
The vulnerability identified as CVE-2011-3574 resides within Oracle Communications Unified 7.0, specifically affecting the Calendar Server component. This unspecified weakness represents a critical security gap that local attackers can exploit to compromise both the confidentiality and integrity of the system. The vulnerability's nature remains partially obscured in the initial description, indicating that the exact technical mechanism enabling the compromise has not been fully disclosed in the public record. However, the classification as a local privilege escalation vulnerability suggests that an attacker with legitimate user access could potentially elevate their privileges or manipulate system data. Calendar Server applications typically handle sensitive scheduling information, personal calendar entries, and organizational meeting data, making this a particularly concerning weakness for enterprise environments that rely heavily on calendar synchronization and management. The unspecified vectors indicate that the attack surface may involve multiple potential pathways, possibly including memory corruption, improper access controls, or insecure data handling mechanisms within the calendar service.
The technical implications of this vulnerability extend beyond simple data exposure, as local users who can exploit this weakness can potentially modify calendar entries, access confidential scheduling information, or manipulate the underlying data structures that govern calendar operations. This type of vulnerability often stems from inadequate input validation, improper privilege management, or flawed access control implementations within the Calendar Server subsystem. The attack vector likely involves local system access where an authenticated user could leverage the vulnerability to gain unauthorized access to calendar data or modify existing entries. From a cybersecurity perspective, this vulnerability aligns with common weaknesses documented in the CWE database, particularly those related to insufficient privilege management and improper access control. The Calendar Server component typically operates with specific user permissions and data handling protocols, and the vulnerability suggests that these controls may have been bypassed or inadequately implemented. Attackers could potentially use this weakness to insert malicious calendar entries, alter existing appointments, or access calendar data belonging to other users within the same system.
The operational impact of CVE-2011-3574 within enterprise environments could be substantial, particularly for organizations that depend heavily on calendar synchronization for business operations, meeting planning, and resource allocation. Calendar data often contains sensitive information including personal schedules, business meetings, project timelines, and confidential communications that could be exploited for social engineering attacks or information gathering. The confidentiality aspect of the vulnerability means that unauthorized access to calendar entries could expose sensitive business information, personal details, or strategic planning data that should remain private. The integrity component suggests that attackers could modify or corrupt calendar data, potentially disrupting business operations, causing scheduling conflicts, or creating false entries that could mislead other users. This type of vulnerability particularly affects organizations using Oracle Communications Unified platforms for enterprise collaboration, as it undermines the trustworthiness of the calendar data and could lead to operational disruptions. The local nature of the attack means that the vulnerability requires only user-level access to exploit, making it particularly dangerous in environments where user accounts may be compromised through social engineering or other attack vectors.
Mitigation strategies for this vulnerability should focus on immediate patch management and access control improvements. Organizations should prioritize applying the relevant Oracle security patches or updates that address the Calendar Server weakness, as these fixes typically contain the necessary code modifications to resolve the underlying privilege escalation or access control issues. System administrators should implement comprehensive monitoring of calendar server activities to detect unauthorized access attempts or suspicious modifications to calendar entries. The principle of least privilege should be enforced, ensuring that calendar server processes operate with minimal necessary permissions and that user accounts have appropriate access controls. Network segmentation and access controls should be reviewed to limit local system access where possible, reducing the attack surface for local privilege escalation. Additionally, regular security assessments of the Oracle Communications Unified platform should be conducted to identify and address similar vulnerabilities. Organizations should also consider implementing data loss prevention measures specifically for calendar data and establish incident response procedures that address calendar server compromise scenarios. From an ATT&CK framework perspective, this vulnerability maps to privilege escalation techniques and credential access patterns, making it particularly relevant for organizations that monitor for these specific attack behaviors in their security operations centers. The vulnerability demonstrates the importance of maintaining up-to-date security patches and the potential consequences of overlooking local privilege escalation vulnerabilities in enterprise collaboration platforms.