BeyondTrust Remote Support Cross-Site Scripting Scanner

BeyondTrust Remote Support is widely used by IT support teams and organizations worldwide to offer comprehensive remote support solutions. It provides secure access to remote systems, enabling technicians to troubleshoot and resolve issues efficiently across diverse environments. Integrated with security features, BeyondTrust Remote Support aims to defend against unauthorized access while ensuring effective end-to-end support operations. Suitable for businesses of all sizes, this product allows seamless interaction between support teams and clients, enhancing efficiency with tools for screen sharing, file transfer, and session recording. The software is designed to address the needs of various sectors, including healthcare, finance, and IT services. Its flexibility and security blend make it a popular choice for managing and resolving remote support challenges.

Cross-Site Scripting (XSS) is a vulnerability that allows attackers to inject malicious scripts into web pages viewed by users. It typically occurs when an application includes untrusted data on a web page without proper validation or escaping. This vulnerability can result in an attacker executing scripts in a user's browser, which can be used to steal information, hijack sessions, or perform other malicious activities. In the context of BeyondTrust Remote Support, an XSS vulnerability might enable malicious actors to trick users or administrators into executing unintended actions by injecting scripts into the interface. The exploitation of XSS vulnerabilities can compromise the confidentiality, integrity, and availability of the impacted systems.

The technical details of this vulnerability involve an unauthenticated XSS in the BeyondTrust Remote Support software through version 6.0.1. Attackers can inject arbitrary web scripts or HTML by crafting specific URLs or requests that manipulate the authentication fields. The /appliance/users?action=edit endpoint is particularly susceptible, allowing for script injection that, when triggered, can create new admin accounts or manipulate current sessions. Successful exploitation requires the malicious actor to trick users into accessing a crafted URL or page containing the script payload. This vulnerability leverages the lack of proper input sanitization and output encoding to execute scripts in the user's browser context.

Exploitation of the XSS vulnerability in BeyondTrust Remote Support can lead to several detrimental outcomes. Malicious attackers might perform session hijacking, gaining unauthorized access to sensitive information or user accounts. It's also possible for scripts to modify webpage content, perform phishing attacks, or propagate malware. If an administrator is affected, attackers could escalate privileges, create unauthorized accounts, or alter configurations, potentially compromising the entire support system. The broader implication could include data loss, reputational damage, and financial repercussions for businesses relying on secure remote support operations.

REFERENCES

• https://www.exploit-db.com/exploits/50632