CVE-2015-2883 in In.Sight B120-37
Summary
by MITRE
Philips In.Sight B120/37 has XSS, related to the Weaved cloud web service, as demonstrated by the name parameter to deviceSettings.php or shareDevice.php.
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Analysis
by VulDB Data Team • 08/27/2020
The vulnerability identified as CVE-2015-2883 affects Philips In.Sight B120/37 security cameras that utilize the Weaved cloud web service for device management and configuration. This represents a cross-site scripting vulnerability that allows attackers to inject malicious scripts into web pages viewed by users of the device management interface. The flaw specifically manifests in the deviceSettings.php and shareDevice.php scripts where the name parameter is not properly sanitized or validated before being rendered in web responses. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is a critical weakness in web applications that enables attackers to execute scripts in the context of other users.
The technical implementation of this vulnerability exploits the lack of input validation and output encoding in the web service interface provided by the Weaved cloud service. When users interact with the device management web interface, the name parameter values are directly incorporated into HTML responses without proper sanitization, creating an environment where malicious payloads can be executed within the browser context of legitimate users. Attackers can craft specially formatted names that contain JavaScript code, which gets executed when other users view the device configuration pages, potentially leading to session hijacking, credential theft, or unauthorized device control.
The operational impact of this vulnerability extends beyond simple script execution, as it compromises the integrity of the device management ecosystem. An attacker could leverage this vulnerability to gain unauthorized access to device configuration settings, potentially enabling them to modify device behavior, access video feeds, or manipulate sharing permissions. The Weaved cloud service integration means that the attack surface includes not just local network access but also cloud-based management interfaces that may be accessible to multiple users within the same organization or service provider environment. This vulnerability directly relates to the ATT&CK technique T1059.007 for Command and Scripting Interpreter: JavaScript, and T1566.001 for Phishing: Spearphishing Attachment, as attackers could use the XSS to deliver malicious payloads through compromised device management interfaces.
Mitigation strategies for this vulnerability should include immediate input validation and output encoding for all user-supplied parameters, particularly those used in web service interfaces. Organizations should implement proper parameter sanitization in the deviceSettings.php and shareDevice.php scripts to prevent malicious content from being executed. The implementation of Content Security Policy headers and proper HTTP response headers can further reduce the attack surface. Additionally, regular security assessments of cloud-based device management services should be conducted to identify similar vulnerabilities in device interfaces. This vulnerability highlights the importance of secure coding practices and input validation in IoT device management systems, particularly those that integrate with cloud services. The issue demonstrates how interconnected device management systems can create cascading security risks when proper input validation is not implemented at all levels of the application stack.