CVE-2015-9248 in Skybox
Summary
by MITRE
An issue was discovered in Skybox Platform before 7.5.401. Stored cross-site scripting vulnerabilities exist in the title, Comments, or Description field to /skyboxview/webskybox/tickets in Change Manager.
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Analysis
by VulDB Data Team • 12/22/2019
The vulnerability identified as CVE-2015-9248 represents a critical stored cross-site scripting flaw within the Skybox Platform version 7.5.401 and earlier releases. This security weakness affects the Change Manager component of the platform, specifically targeting the title, comments, and description fields of ticket entries. The vulnerability stems from inadequate input validation and output encoding mechanisms that fail to properly sanitize user-supplied data before storing and rendering it within the web interface.
The technical nature of this flaw allows attackers to inject malicious script code into the affected fields through the Change Manager web interface. When other users view these compromised tickets, the malicious scripts execute in their browsers within the context of the vulnerable application. This stored XSS vulnerability operates through the /skyboxview/webskybox/tickets endpoint, which serves as the primary interface for ticket management and viewing. The attack vector is particularly concerning because it requires no privileged access to execute the malicious payload, making it exploitable by any authenticated user with access to the Change Manager functionality.
The operational impact of CVE-2015-9248 extends beyond simple script execution, potentially enabling attackers to perform session hijacking, steal sensitive information, or redirect users to malicious websites. The vulnerability falls under CWE-79 which specifically addresses Cross-Site Scripting flaws, and aligns with ATT&CK technique T1566.001 for Initial Access through Spearphishing Attachment. An attacker could leverage this vulnerability to establish persistent access to the platform by stealing session cookies or credentials from authenticated users who view compromised tickets, thereby compromising the integrity and confidentiality of the entire Change Management system.
Mitigation strategies for this vulnerability require immediate implementation of proper input sanitization and output encoding mechanisms across all user-editable fields within the Change Manager component. The platform should employ strict validation of all input data, including the title, comments, and description fields, ensuring that any potentially malicious script content is either stripped or properly encoded before storage. Additionally, implementing Content Security Policy headers and using secure output encoding techniques such as HTML entity encoding for all dynamic content rendered in the web interface would significantly reduce the attack surface. Organizations should also consider implementing web application firewalls to detect and block suspicious script payloads, while ensuring that all users have appropriate access controls and that regular security audits are conducted to identify similar vulnerabilities in other components of the Skybox Platform ecosystem.