CVE-2016-0362 in TRIRIGA Application Platform
Summary
by MITRE
IBM TRIRIGA Application Platform 3.3 before 3.3.2.6, 3.4 before 3.4.2.4, and 3.5 before 3.5.0.2 allows remote authenticated users to conduct server-side request forgery (SSRF) attacks, and trigger network traffic to arbitrary intranet or Internet hosts, via a crafted proxy request to a web service.
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Analysis
by VulDB Data Team • 02/15/2019
The vulnerability identified as CVE-2016-0362 affects IBM TRIRIGA Application Platform versions prior to specific patch levels, representing a critical server-side request forgery flaw that enables authenticated attackers to manipulate the platform's proxy functionality. This vulnerability resides within the web service component of the application platform, specifically in how it processes proxy requests that are intended to facilitate communication between the platform and external systems. The flaw allows an attacker who has valid authentication credentials to construct malicious proxy requests that can cause the platform to initiate network connections to arbitrary destinations, potentially exposing internal network resources to unauthorized access. The vulnerability is classified under CWE-918 as a server-side request forgery, which is a well-documented class of vulnerability where an application fails to properly validate or sanitize user-supplied input that is used to construct requests to other systems.
The technical implementation of this vulnerability stems from insufficient input validation within the proxy request handling mechanism of the TRIRIGA platform. When legitimate users submit proxy requests through the web service interface, the platform does not adequately verify the destination URLs or hostnames specified in these requests. This lack of validation creates an opportunity for attackers to manipulate the proxy functionality to target internal network resources or external systems that should not be accessible through the normal application interface. The vulnerability is particularly concerning because it requires only authenticated access, meaning that an attacker with valid user credentials can exploit this flaw without requiring additional privileges or complex attack vectors. The attack surface extends beyond simple internet connectivity to include potential access to internal systems that are typically protected by network segmentation and firewall rules.
The operational impact of this vulnerability is significant as it can enable attackers to perform reconnaissance activities against internal network infrastructure, potentially discovering sensitive systems or services that are not directly exposed to the internet. An attacker could use this vulnerability to scan internal network ranges, attempt to exploit vulnerable internal services, or even establish covert communication channels through the platform's proxy functionality. The ability to trigger network traffic to arbitrary hosts means that the vulnerability could be leveraged for various malicious activities including data exfiltration, lateral movement within the network, or as a stepping stone for more sophisticated attacks. This vulnerability directly maps to ATT&CK technique T1071.004 for application layer protocol: DNS and T1016 for system network configuration discovery, making it a valuable tool for attackers seeking to expand their operational capabilities within a compromised environment.
Organizations affected by this vulnerability should immediately implement mitigation strategies including applying the vendor-provided patches that address the specific proxy validation issues in the affected TRIRIGA platform versions. Network segmentation and firewall rules should be reviewed to limit the platform's ability to connect to arbitrary destinations, while implementing strict proxy configuration policies that restrict outbound connections to known and trusted endpoints. Additional defensive measures include monitoring proxy request logs for suspicious patterns, implementing network traffic analysis to detect anomalous connection attempts, and establishing strict access controls to minimize the attack surface. The vulnerability demonstrates the importance of input validation in web applications and highlights the need for comprehensive security testing of proxy and integration components within enterprise platforms. Security teams should also consider implementing automated vulnerability scanning tools that can identify similar issues in other components of their application infrastructure, as this type of flaw can often be present in systems that handle external communication requests.