CVE-2019-7551 in Cantemo
Summary
by MITRE
Cantemo Portal before 3.2.13, 3.3.x before 3.3.8, and 3.4.x before 3.4.9 has XSS. Leveraging this vulnerability would enable performing actions as users, including administrative users. This could enable account creation and deletion as well as deletion of information contained within the app.
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Analysis
by VulDB Data Team • 05/29/2020
The vulnerability identified as CVE-2019-7551 represents a cross-site scripting flaw within Cantemo Portal software versions prior to specific patch releases. This security weakness exists in versions 3.2.12 and earlier, 3.3.x versions before 3.3.8, and 3.4.x versions before 3.4.9, creating a persistent risk for organizations utilizing this digital asset management platform. The vulnerability stems from inadequate input validation and output encoding mechanisms within the application's web interface, allowing malicious actors to inject malicious scripts into web pages viewed by other users. The flaw manifests when user-supplied data is not properly sanitized before being rendered in web responses, creating an avenue for attackers to execute arbitrary JavaScript code within the context of a victim's browser session.
The technical exploitation of this XSS vulnerability enables attackers to perform a wide range of malicious activities with elevated privileges, particularly when targeting administrative users who possess broader access rights within the application. When successful, the vulnerability allows unauthorized individuals to create and delete user accounts, manipulate content, and remove information stored within the Cantemo Portal application. This represents a critical compromise of the system's integrity and availability, as attackers can essentially assume the identity of legitimate users and perform operations that would normally be restricted to authorized personnel. The vulnerability's impact extends beyond simple data theft, as it provides persistent access that could enable ongoing unauthorized modifications to the digital asset management system.
The operational consequences of this vulnerability are severe, as it fundamentally undermines the trust model within the Cantemo Portal environment. Attackers leveraging this flaw could establish persistent backdoors through account creation, manipulate digital assets, and potentially cause significant data loss or corruption. The vulnerability's ability to affect administrative users particularly amplifies its threat level, as it provides access to system-wide configuration settings and user management capabilities. Organizations relying on Cantemo Portal for managing digital assets face potential exposure to data breaches, content manipulation, and unauthorized access to sensitive organizational information. This vulnerability directly relates to CWE-79, which specifically addresses cross-site scripting flaws in web applications, and aligns with ATT&CK technique T1059.007 for script execution and T1566 for credential access through social engineering.
Mitigation strategies for CVE-2019-7551 require immediate patching of affected systems to version 3.2.13, 3.3.8, or 3.4.9 respectively, depending on the organization's current software version. Organizations should also implement comprehensive input validation and output encoding mechanisms throughout the application to prevent similar vulnerabilities from emerging in the future. Network monitoring should be enhanced to detect potential exploitation attempts, and web application firewalls should be configured to filter malicious script content. Regular security assessments and penetration testing should be conducted to identify additional vulnerabilities within the digital asset management infrastructure. Additionally, organizations should implement principle of least privilege access controls and ensure that administrative privileges are not routinely used by regular users to minimize potential impact from such vulnerabilities.