CVE-2023-37499 in Unica Platform
Summary
by MITRE • 08/04/2023
A Persistent Cross-site Scripting (XSS) vulnerability can be carried out in a certain field of the Unica Platform. An attacker could hijack a user's session and perform other attacks.
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Analysis
by VulDB Data Team • 08/26/2023
The CVE-2023-37499 vulnerability represents a critical persistent cross-site scripting flaw within the Unica Platform that poses significant security risks to organizations relying on this system. This vulnerability exists in a specific field of the platform where user input is not properly sanitized or validated, creating an entry point for malicious actors to inject persistent malicious scripts. The nature of this vulnerability allows attackers to execute arbitrary code within the context of a victim's browser session, potentially leading to complete session hijacking and unauthorized access to sensitive data and system functionalities. The Unica Platform, being a comprehensive marketing and analytics solution, handles sensitive user information and business data, making this vulnerability particularly dangerous in enterprise environments.
The technical implementation of this persistent XSS vulnerability stems from inadequate input validation mechanisms within the targeted field of the Unica Platform. When users submit data through this specific field, the platform fails to properly sanitize or encode the input before processing or storing it. This allows malicious scripts to be stored within the application's database or server-side components and subsequently executed whenever the affected data is rendered or displayed to other users. The persistence aspect of this vulnerability means that the malicious payload remains active even after the initial injection, continuously affecting any user who interacts with the compromised data. This differs from reflected XSS attacks where the malicious script must be triggered by a specific user action, making persistent XSS attacks more dangerous and harder to detect.
The operational impact of CVE-2023-37499 extends far beyond simple script execution, as it enables attackers to hijack active user sessions and potentially gain elevated privileges within the Unica Platform. Once an attacker successfully injects malicious scripts, they can steal session cookies, capture user credentials, and perform actions on behalf of authenticated users. This capability aligns with attack patterns documented in the MITRE ATT&CK framework under the T1531 technique for "Account Access Removal" and T1078 for "Valid Accounts" when combined with session hijacking. The vulnerability creates opportunities for privilege escalation attacks where malicious actors can manipulate the platform's functionality to access restricted areas or perform administrative actions. Organizations using the Unica Platform may experience unauthorized data access, data manipulation, and potential system compromise that could lead to significant financial and reputational damage.
Security professionals should prioritize immediate mitigation efforts including input validation and output encoding implementation to address this vulnerability. The recommended approach involves implementing comprehensive sanitization of all user inputs within the affected field, utilizing proper encoding techniques such as HTML entity encoding and JavaScript escaping to prevent script execution. Organizations should also implement Content Security Policy (CSP) headers to add an additional layer of protection against XSS attacks. The vulnerability aligns with CWE-79 which specifically addresses Cross-site Scripting flaws in software applications, and organizations should consider the broader implications of persistent XSS vulnerabilities as outlined in the OWASP Top Ten project. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities within the platform and surrounding systems. Additionally, implementing proper web application firewall rules and monitoring for suspicious input patterns can help detect and prevent exploitation attempts. The remediation process should include thorough code reviews of the affected components and implementation of proper security training for developers working on the Unica Platform to prevent similar vulnerabilities in future releases.