CVE-2017-16710 in AirMedia AM-100
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Crestron Airmedia AM-100 devices with firmware before 1.6.0 and AM-101 devices with firmware before 2.7.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 03/04/2020
The CVE-2017-16710 vulnerability represents a critical cross-site scripting flaw affecting Crestron Airmedia AM-100 and AM-101 presentation devices. This vulnerability stems from insufficient input validation and output encoding mechanisms within the device's web interface, creating a persistent security gap that enables remote attackers to execute malicious scripts in the context of authenticated users. The affected firmware versions lack proper sanitization of user-supplied input data, allowing attackers to inject arbitrary HTML and JavaScript code through unspecified attack vectors within the device's web-based management interface.
The technical implementation of this vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in web applications. The flaw manifests when the device processes user input without adequate validation or encoding, permitting malicious payloads to be stored and subsequently executed when legitimate users access the affected web interface. This type of vulnerability typically occurs in web applications where dynamic content is generated based on user input without proper sanitization measures, creating an environment where attacker-controlled data can be interpreted as executable code by web browsers.
From an operational perspective, this vulnerability presents significant risks to enterprise environments relying on Crestron Airmedia devices for presentations and collaboration. Remote attackers can exploit this flaw to execute arbitrary code, potentially gaining unauthorized access to sensitive network resources, stealing session cookies, or redirecting users to malicious websites. The impact extends beyond simple script execution as attackers could leverage this vulnerability to establish persistent access points within the network, particularly in environments where these devices are connected to internal networks. The vulnerability affects both AM-100 and AM-101 models, indicating a widespread issue across Crestron's presentation device portfolio.
The attack surface for this vulnerability encompasses any user with access to the device's web interface, including both legitimate administrators and potentially unauthorized individuals who can reach the device through network exposure. Attackers may utilize this vulnerability to perform session hijacking, modify device configurations, or create backdoor access points for future exploitation. The unspecified vectors suggest that multiple input points within the device's web interface could be compromised, making the vulnerability particularly dangerous as defenders cannot easily predict all potential attack paths. Organizations should consider implementing network segmentation and access controls to limit exposure of these devices to untrusted networks, while also monitoring for suspicious network traffic patterns that may indicate exploitation attempts.
Organizations should immediately upgrade affected devices to firmware versions 1.6.0 or later for AM-100 devices and 2.7.0 or later for AM-101 devices to remediate this vulnerability. Additionally, network administrators should implement proper access controls and authentication measures for device management interfaces, while conducting regular security assessments to identify other potential entry points. The vulnerability demonstrates the importance of maintaining current firmware versions and implementing robust input validation practices in embedded web applications, aligning with security best practices outlined in the NIST Cybersecurity Framework and ISO/IEC 27001 standards. This vulnerability serves as a reminder of the critical need for security testing and validation of web interfaces in networked embedded devices, particularly those used in enterprise environments where they may serve as potential gateway points for broader network compromise.