CVE-2023-4534 in Fusion Platform
Summary
by MITRE • 08/25/2023
A vulnerability, which was classified as problematic, was found in NeoMind Fusion Platform up to 20230731. Affected is an unknown function of the file /fusion/portal/action/Link. The manipulation of the argument link leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-238026 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 09/20/2023
This vulnerability exists within the NeoMind Fusion Platform version 20230731 and earlier, specifically targeting the /fusion/portal/action/Link function. The flaw represents a classic cross site scripting vulnerability that allows attackers to inject malicious scripts into web applications through improperly validated input parameters. The vulnerability is particularly concerning as it affects a core portal functionality that likely handles user-generated content or external link references, making it a prime target for exploitation. The attack vector is remote, meaning malicious actors can exploit this weakness without requiring physical access to the system or direct network proximity to the affected platform.
The technical implementation of this vulnerability stems from inadequate input validation within the Link function parameter handling. When user-supplied data is directly incorporated into web page responses without proper sanitization or encoding, it creates an opening for attackers to execute malicious scripts in the context of other users' browsers. This type of vulnerability falls under CWE-79 which specifically addresses cross site scripting flaws in web applications. The vulnerability's classification as problematic indicates that it represents a significant security risk that could be leveraged for various malicious activities including session hijacking, data theft, or redirection to malicious sites.
The operational impact of this vulnerability extends beyond simple script execution as it can enable attackers to compromise user sessions and potentially gain unauthorized access to sensitive information within the NeoMind Fusion Platform. Remote exploitation capabilities mean that attackers can target users from anywhere on the internet, making the attack surface extremely broad. The fact that this vulnerability has been publicly disclosed and is actively being used in the wild significantly increases the risk to organizations utilizing affected versions of the platform. Security teams must consider that attackers may be actively scanning for systems running vulnerable versions of the NeoMind Fusion Platform and exploiting this weakness to establish persistent access to target environments.
Organizations should immediately implement mitigations including input validation and output encoding for all user-supplied data, particularly within the affected Link function. The implementation of Content Security Policy headers can provide additional protection against script execution, while regular security updates and patches should be applied as soon as vendor remediations become available. Network monitoring should be enhanced to detect potential exploitation attempts, and user education regarding suspicious links and website behavior should be reinforced. The vulnerability's mapping to ATT&CK technique T1566.001 for initial access through spearphishing with links demonstrates how this weakness could be leveraged as part of broader attack campaigns. Given the vendor's lack of response to early disclosure, organizations may need to consider alternative security measures or seek third-party support for remediation. The public disclosure of this vulnerability in VDB-238026 indicates that security researchers have already identified and documented the issue, emphasizing the urgency for immediate action to protect systems from exploitation.