CVE-2022-41566 in EBX Add-ons
Summary
by MITRE • 02/22/2023
The server component of TIBCO Software Inc.'s TIBCO EBX Add-ons contains an easily exploitable vulnerability that allows a low privileged attacker with network access to execute stored XSS on the affected system. Affected releases are TIBCO Software Inc.'s TIBCO EBX Add-ons: versions 5.6.0 and below.
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Analysis
by VulDB Data Team • 03/24/2023
The vulnerability identified as CVE-2022-41566 represents a critical security flaw within the server component of TIBCO Software Inc.'s TIBCO EBX Add-ons platform. This weakness exists in versions 5.6.0 and earlier, making them susceptible to cross-site scripting attacks that can be exploited by adversaries with minimal privileges and network access. The vulnerability's exploitability score indicates that it requires no special privileges or complex attack vectors, rendering it particularly dangerous as it can be leveraged by threat actors with basic network connectivity to the affected system. The flaw specifically enables stored cross-site scripting attacks, which means that malicious input can be permanently stored on the server and subsequently executed in the context of other users' browsers. This particular vulnerability falls under the CWE-79 category, which classifies cross-site scripting flaws as one of the most prevalent and dangerous web application security issues. The stored XSS nature of this vulnerability means that attackers can inject malicious scripts that persist within the application's database or storage mechanisms, allowing the malicious code to execute whenever legitimate users access affected pages. The attack surface is particularly concerning given that TIBCO EBX Add-ons is designed for enterprise use cases where privileged data handling and user management are common, potentially allowing attackers to escalate their initial access into more significant security breaches.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding within the server-side processing of user-supplied data. When the affected system processes user inputs through its web interface or API endpoints, it fails to properly sanitize or escape potentially malicious content before storing it in the system's data repositories. This inadequate sanitization creates an environment where attackers can inject script payloads that are subsequently rendered in the browser context of other users who interact with the affected application. The vulnerability's exploitation requires only network access to the target system, making it particularly attractive to threat actors who may have limited direct access to the internal network but can reach the application through external attack vectors. The stored nature of the XSS attack means that the malicious payload remains persistent within the system, allowing attackers to maintain access and execute commands over extended periods. This vulnerability directly maps to the ATT&CK technique T1059.001, which covers command and scripting interpreter, as attackers can use the XSS payload to execute malicious scripts in user browsers. The persistence of the vulnerability means that even if the initial attack vector is patched, the stored malicious content continues to pose a risk to users who access the affected application.
The operational impact of CVE-2022-41566 extends far beyond simple script execution, as it can lead to complete session hijacking, data theft, and privilege escalation within the affected enterprise environment. When attackers successfully exploit this vulnerability, they can steal session cookies, access sensitive business data, and potentially gain administrative privileges if the affected application handles user roles and permissions. The vulnerability's low privilege requirement means that even users with minimal system access can cause significant damage, as they can inject malicious code that affects all users of the application. Organizations using TIBCO EBX Add-ons in production environments face potential exposure to credential theft, data exfiltration, and unauthorized system modifications. The stored XSS attack can be particularly devastating in enterprise settings where these applications often handle sensitive business processes, customer data, and internal communications. The vulnerability's impact is amplified by the fact that it affects versions 5.6.0 and below, which may be widely deployed across enterprise networks, potentially exposing numerous systems to the same risk. Attackers can leverage this vulnerability to create backdoors, establish persistent access, and conduct reconnaissance activities within the network. The potential for privilege escalation through XSS attacks makes this vulnerability particularly dangerous for enterprise environments where applications often handle sensitive data and business-critical processes. Organizations that have not yet patched this vulnerability face significant risk of data breaches, compliance violations, and potential financial losses due to unauthorized access to their systems.
Mitigation strategies for CVE-2022-41566 should prioritize immediate patching of all affected TIBCO EBX Add-ons versions 5.6.0 and below, as this represents the most effective defense against exploitation. Organizations should implement comprehensive input validation and output encoding mechanisms throughout their web applications to prevent malicious content from being stored and executed. Security teams should deploy web application firewalls and content security policies to detect and block suspicious payloads before they can be stored in the system. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities within the application stack, particularly focusing on areas where user input is processed and stored. Network segmentation and access controls should be implemented to limit the attack surface and reduce the potential impact of successful exploitation attempts. Organizations should also establish robust monitoring and alerting mechanisms to detect unusual activity patterns that may indicate exploitation attempts. The implementation of proper security training for developers and administrators can help prevent similar vulnerabilities from being introduced in future application development cycles. Additionally, organizations should conduct thorough vulnerability assessments to identify any other components within their TIBCO EBX environment that may be similarly affected. The remediation process should include comprehensive testing to ensure that the patch does not introduce regressions or compatibility issues with existing business processes. Regular updates to security configurations and continuous monitoring of threat intelligence feeds should be maintained to ensure proactive defense against evolving attack techniques targeting similar vulnerabilities.