CVE-2020-24595 in MiCloud Management Portal
Summary
by MITRE
Mitel MiCloud Management Portal before 6.1 SP5 could allow an attacker, by sending a crafted request, to retrieve sensitive information due to insufficient access control.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 11/14/2020
The vulnerability identified as CVE-2020-24595 affects the Mitel MiCloud Management Portal version 6.1 SP4 and earlier, representing a critical access control flaw that exposes sensitive system information to unauthorized actors. This issue stems from inadequate input validation and insufficient authorization checks within the portal's request handling mechanisms, allowing attackers to bypass normal access controls through carefully crafted HTTP requests. The vulnerability specifically impacts the management interface that administrators use to configure and monitor Mitel communication systems, creating a significant risk for organizations relying on this platform for their telephony infrastructure.
The technical exploitation of this vulnerability involves sending maliciously constructed requests to the management portal's API endpoints, which fail to properly validate user permissions or authenticate requests before returning sensitive data. This flaw falls under the CWE-284 access control weakness category, where insufficient access control mechanisms allow unauthorized users to access protected resources. The vulnerability enables information disclosure attacks where attackers can retrieve configuration details, user credentials, system parameters, and other sensitive administrative data that should only be accessible to authorized personnel with proper authentication and authorization credentials.
From an operational impact perspective, this vulnerability creates substantial risk for organizations using Mitel MiCloud Management Portal as their primary communication management solution. Attackers who successfully exploit this flaw can gain unauthorized access to critical system information that may include user account details, system configuration parameters, network settings, and potentially administrative credentials. The implications extend beyond simple information disclosure as this data can be leveraged for further attacks including privilege escalation, lateral movement within the network, or targeted social engineering campaigns. Organizations may face compliance violations and regulatory penalties if sensitive data is compromised through this vulnerability.
Security practitioners should implement immediate mitigations including applying the vendor-provided patches and updates that address this access control weakness in Mitel MiCloud Management Portal version 6.1 SP5 and later. Network segmentation and firewall rules should be implemented to restrict access to the management portal only to authorized administrative networks and IP addresses. Additional protective measures include implementing strong authentication mechanisms, monitoring for unusual access patterns, and conducting regular security assessments of the management interfaces. The vulnerability aligns with ATT&CK technique T1213.002 (Data from Information Repositories) and T1078 (Valid Accounts) as attackers can leverage this flaw to access repository data and potentially escalate privileges through compromised administrative credentials. Organizations should also consider implementing web application firewalls and intrusion detection systems to monitor for exploitation attempts targeting this specific vulnerability.