CVE-2015-2873 in Deep Discovery
Summary
by MITRE
Trend Micro Deep Discovery Inspector (DDI) on Deep Discovery Threat appliances with software before 3.5.1477, 3.6.x before 3.6.1217, 3.7.x before 3.7.1248, 3.8.x before 3.8.1263, and other versions allows remote attackers to obtain sensitive information or change the configuration via a direct request to the (1) system log URL, (2) whitelist URL, or (3) blacklist URL.
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Analysis
by VulDB Data Team • 12/22/2024
The vulnerability identified as CVE-2015-2873 affects Trend Micro Deep Discovery Inspector appliances, which are designed for advanced threat detection and network security monitoring. These appliances operate as deep packet inspection devices that analyze network traffic to identify potential security threats and malicious activities. The affected versions span multiple release branches including 3.5.x, 3.6.x, 3.7.x, and 3.8.x, indicating a widespread issue that impacted various generations of the Deep Discovery Threat appliance family. The vulnerability stems from insufficient access controls and authentication mechanisms within the web interface of these security appliances, creating potential entry points for unauthorized actors seeking to compromise the system's integrity and confidentiality.
This security flaw represents a critical authorization bypass vulnerability that allows remote attackers to directly access sensitive system endpoints without proper authentication. The vulnerability specifically impacts three key URLs within the appliance's web interface: the system log URL, whitelist URL, and blacklist URL. These endpoints provide access to critical operational data and configuration parameters that should only be accessible to authorized administrators. The system log URL exposes operational logs that may contain sensitive information about network activities, system performance, and security events. The whitelist and blacklist URLs provide access to network access control configurations that determine which traffic is allowed or blocked by the appliance. The absence of proper authentication checks on these endpoints means that any remote attacker with knowledge of the URL structure can access or modify these critical system components.
The operational impact of this vulnerability extends beyond simple information disclosure to include potential configuration manipulation that could severely compromise network security. An attacker who successfully exploits this vulnerability could gain access to detailed system logs that might reveal network topology information, user activities, and security event details that could be used for further attacks. More critically, the ability to modify whitelist and blacklist configurations could allow an attacker to bypass security controls, permit malicious traffic through the network, or block legitimate security monitoring activities. This could result in complete loss of network security visibility and protection, as the attacker could essentially disable or manipulate the appliance's core threat detection and mitigation capabilities. The vulnerability's remote nature means that attackers do not require physical access or local network presence to exploit the issue, making it particularly dangerous in enterprise environments where such appliances are often exposed to external networks.
The vulnerability aligns with CWE-284, which describes improper access control, and represents a classic example of insufficient authorization checks in web applications. From an ATT&CK framework perspective, this vulnerability maps to techniques involving privilege escalation and defense evasion, as attackers can manipulate system configurations to bypass security controls. Organizations should implement immediate mitigations including applying the vendor-provided patches and updates that address the authentication bypass issue, implementing network segmentation to limit access to these appliances, and conducting thorough security assessments to identify any potential exploitation that may have occurred. Additionally, organizations should consider implementing network monitoring to detect unusual access patterns to these sensitive endpoints and establish robust access control policies that limit administrative access to these critical systems. The vulnerability demonstrates the importance of proper authentication mechanisms in security appliances and highlights the need for regular security updates and vulnerability assessments to maintain effective network security postures.