CVE-2018-6497 in UCMBD
Summary
by MITRE
Remote Cross-site Request forgery (CSRF) potential has been identified in UCMBD Server version DDM Content Pack V 10.20, 10.21, 10.22, 10.22 CUP7, 10.30, 10.31, 10.32, 10.33, 10.33 CUP2, 11.0 and CMS Server version 2018.05 BACKGROUND which could allow for remote unsafe deserialization and cross-site request forgery (CSRF).
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Analysis
by VulDB Data Team • 03/27/2023
The vulnerability identified in CVE-2018-6497 represents a critical security flaw affecting UCMBD Server and CMS Server versions across multiple release branches including DDM Content Pack V 10.20 through 11.0 and CMS Server version 2018.05. This vulnerability stems from insufficient validation of cross-site request forgery tokens within the web application interface, creating a pathway for malicious actors to execute unauthorized actions against authenticated users. The flaw manifests as a potential remote unsafe deserialization vector combined with CSRF capabilities, significantly expanding the attack surface and potential impact of exploitation.
The technical implementation of this vulnerability involves the absence of proper anti-CSRF token validation mechanisms within the server's request processing pipeline. When legitimate users interact with the web interface, the application fails to adequately verify that requests originate from authorized sources, allowing attackers to craft malicious requests that appear to come from authenticated users. This weakness specifically affects the Content Management System's handling of user sessions and request authentication, where the server does not properly validate the presence or integrity of CSRF tokens in submitted requests. The vulnerability is particularly concerning as it operates at the application layer, where user sessions and access controls are managed, making it difficult to detect and prevent through network-level security controls.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it enables attackers to perform actions that could compromise entire server environments. Remote unsafe deserialization combined with CSRF capabilities allows threat actors to potentially execute arbitrary code on the affected servers, leading to complete system compromise. This vulnerability affects organizations that rely on the UCMBD and CMS server platforms for content management and data processing, potentially exposing sensitive information and disrupting business operations. The attack vector requires minimal user interaction, as victims may unknowingly trigger malicious requests through social engineering or by visiting compromised websites that leverage the CSRF vulnerability.
Security professionals should implement multiple layers of mitigation strategies to address this vulnerability effectively. The primary recommendation involves implementing robust anti-CSRF token mechanisms that generate unique, unpredictable tokens for each user session and validate them against every request. Organizations should also ensure proper input validation and sanitization of all user-supplied data, particularly in areas where deserialization occurs. Network segmentation and access controls should be strengthened to limit exposure of vulnerable components, while regular security updates and patches should be applied immediately upon availability. The vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery, and represents a significant concern under ATT&CK technique T1213.002 for credential access through deserialization attacks. Organizations should conduct thorough vulnerability assessments to identify all affected systems and implement proper monitoring to detect potential exploitation attempts.