CVE-2017-15029 in OX App Suite
Summary
by MITRE
Open-Xchange GmbH OX App Suite 7.8.4 and earlier is affected by: SSRF.
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Analysis
by VulDB Data Team • 06/14/2020
The vulnerability CVE-2017-15029 represents a server-side request forgery flaw in Open-Xchange GmbH's OX App Suite version 7.8.4 and earlier. This issue allows remote attackers to make unauthorized requests to internal systems that should otherwise be inaccessible from the internet. The vulnerability stems from insufficient input validation and sanitization within the application's request handling mechanisms, enabling malicious actors to manipulate the application into communicating with arbitrary internal or external endpoints.
This SSRF vulnerability falls under CWE-918, which specifically addresses server-side request forgery conditions where applications fail to properly validate and sanitize user-supplied input that influences HTTP requests. The flaw enables attackers to bypass network segmentation and potentially access internal services that are not directly exposed to the internet. The vulnerability is particularly concerning because OX App Suite serves as a comprehensive email and collaboration platform, often deployed in enterprise environments where internal network resources are tightly controlled and protected.
The operational impact of this vulnerability extends beyond simple information disclosure. Attackers can leverage the SSRF flaw to perform reconnaissance of internal network infrastructure, potentially identifying other vulnerable systems, accessing internal databases, or even escalating privileges within the network. The vulnerability can be exploited through various attack vectors including crafted email attachments, web forms, or API endpoints that process user input. In enterprise environments, this could lead to unauthorized access to sensitive internal services, database servers, or other critical infrastructure components that are typically protected by firewalls and network segmentation policies.
Mitigation strategies should focus on implementing strict input validation and sanitization for all user-supplied data, particularly in areas where external requests are processed. Organizations should deploy network segmentation measures to isolate critical internal systems from the application servers, implement proper access controls, and utilize web application firewalls to detect and block suspicious requests. Additionally, regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in the application stack. The ATT&CK framework categorizes this vulnerability under T1071.004 for application layer protocol and T1046 for network service scanning, highlighting the reconnaissance and lateral movement capabilities that attackers can exploit through such flaws. Organizations should also consider implementing outbound traffic filtering and monitoring to detect unusual patterns that may indicate exploitation attempts.