CVE-2018-12609 in App Suite
Summary
by MITRE
OX App Suite 7.8.4 and earlier allows Server-Side Request Forgery.
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Analysis
by VulDB Data Team • 05/06/2020
The vulnerability identified as CVE-2018-12609 represents a critical server-side request forgery flaw within OX App Suite versions 7.8.4 and earlier. This vulnerability falls under the broader category of insecure direct object references and can be classified as CWE-918, which specifically addresses server-side request forgery conditions. The flaw enables malicious actors to manipulate the application's request handling mechanisms to make unauthorized requests to internal systems that should otherwise remain protected from external access. This vulnerability is particularly dangerous because it can be exploited to bypass network security controls and access sensitive internal resources that are normally isolated from direct internet exposure.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization within the application's request processing pipeline. Attackers can craft malicious requests that cause the server to forward requests to arbitrary destinations, including internal network services, databases, or other systems that are not intended to be accessible through the application's public interface. The flaw typically manifests when the application accepts user-supplied parameters that are directly used in constructing outbound requests without proper validation or filtering. This allows threat actors to potentially access internal systems such as database servers, administrative interfaces, or other sensitive components that reside within the organization's internal network infrastructure.
The operational impact of this vulnerability extends beyond simple data exfiltration, as it can enable attackers to perform lateral movement within the network environment. Once exploited, the vulnerability can provide access to internal services that may contain sensitive information, administrative credentials, or critical system components. The potential for privilege escalation increases significantly when attackers can access internal services that may have elevated permissions or access to restricted data. This vulnerability aligns with several techniques documented in the MITRE ATT&CK framework under the category of initial access and lateral movement, specifically targeting the use of server-side request forgery to bypass network security controls and gain access to internal resources.
Organizations utilizing OX App Suite versions prior to 7.8.5 should implement immediate mitigations to address this vulnerability. The most effective approach involves updating to the patched version that includes proper input validation and sanitization mechanisms for all user-supplied parameters used in constructing outbound requests. Additionally, network-level mitigations such as implementing strict firewall rules, restricting outbound connections from the application server, and deploying web application firewalls can provide additional layers of protection. Organizations should also conduct thorough network segmentation to ensure that internal services are not directly accessible from the application server. The implementation of proper logging and monitoring mechanisms can help detect suspicious outbound requests that may indicate exploitation attempts. Regular security assessments and vulnerability scanning should be conducted to identify similar flaws in other applications within the organization's infrastructure, as this type of vulnerability is commonly found in applications that improperly handle user input in network request contexts.