CVE-2012-0366 in Unity Connection
Summary
by MITRE
Cisco Unity Connection before 7.1.3b(Su2) allows remote authenticated users to change the administrative password by leveraging the Help Desk Administrator role, aka Bug ID CSCtd45141.
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Analysis
by VulDB Data Team • 11/30/2021
Cisco Unity Connection represents a unified communications platform that integrates voice messaging, email, and web-based collaboration tools within enterprise environments. The vulnerability described in CVE-2012-0366 specifically targets the privilege escalation mechanisms within this system, where authenticated users with the Help Desk Administrator role can exploit a flaw in the access control implementation to modify administrative passwords. This vulnerability stems from insufficient authorization checks during password change operations, allowing users with limited privileges to escalate their access level through manipulation of the system's authentication framework.
The technical flaw manifests in the improper validation of user roles during administrative password modification processes. When a Help Desk Administrator attempts to change a password, the system fails to adequately verify whether the requesting user possesses the necessary elevated privileges required for such operations. This weakness creates a path for privilege escalation that directly violates the principle of least privilege and undermines the security model of the Unity Connection platform. The vulnerability is particularly concerning because it allows an attacker with minimal administrative access to gain full administrative control over the system through a simple password modification attack.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it fundamentally compromises the integrity and confidentiality of the entire communication infrastructure. An attacker who successfully exploits this vulnerability can gain complete control over the Unity Connection system, potentially leading to unauthorized access to voice messages, email integration, and web-based collaboration features. This access could enable data exfiltration, system manipulation, and disruption of critical business communications. The vulnerability affects organizations relying on Cisco Unity Connection for their unified communications needs, particularly those with multiple help desk administrators who may inadvertently provide attackers with access to critical system functions.
Organizations should implement immediate mitigations including applying the vendor-provided security patches and updates, reviewing and restricting user role assignments to minimize privilege exposure, and implementing network segmentation to limit access to the Unity Connection system. The vulnerability aligns with CWE-284 which addresses improper access control, and maps to ATT&CK techniques such as privilege escalation through credential access and lateral movement. Additionally, organizations should conduct comprehensive security assessments of their unified communications systems, implement robust monitoring for unauthorized password change activities, and establish strict access control policies that align with zero-trust security principles. Regular security audits and vulnerability assessments should be performed to identify similar privilege escalation vulnerabilities in other enterprise communication platforms and ensure proper role-based access controls are maintained throughout the system architecture.