CVE-2011-1899 in eHealth
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in CA eHealth 6.0.x, 6.1.x, 6.2.1, and 6.2.2 allow remote attackers to inject arbitrary web script or HTML via unspecified parameters.
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Analysis
by VulDB Data Team • 02/09/2019
The CVE-2011-1899 vulnerability represents a critical cross-site scripting flaw affecting CA eHealth versions 6.0.x through 6.2.2, constituting a significant security weakness in enterprise network monitoring software. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, specifically targeting web applications that fail to properly validate and sanitize user input before rendering it in web pages. The flaw exists in the application's handling of unspecified parameters, creating an attack surface where malicious actors can inject arbitrary web scripts or HTML code into the application's response.
The technical implementation of this vulnerability stems from insufficient input validation mechanisms within the CA eHealth web interface. When users interact with the application through web forms or URL parameters, the system does not adequately sanitize or encode user-supplied data before incorporating it into dynamic web content. This failure allows attackers to craft malicious payloads that execute in the context of other users' browsers, potentially leading to session hijacking, data theft, or unauthorized administrative actions. The unspecified parameters suggest that multiple input vectors across different application modules may be affected, amplifying the potential attack surface.
Operationally, this vulnerability poses severe risks to organizations relying on CA eHealth for network monitoring and management. Remote attackers can exploit these XSS flaws to execute malicious scripts in victims' browsers, potentially gaining access to sensitive network information, manipulating monitoring data, or escalating privileges within the application. The impact extends beyond simple data theft, as attackers could leverage these vulnerabilities to establish persistent access points within the network infrastructure, particularly if the application provides administrative capabilities. The vulnerability's remote exploitability means attackers do not require physical access or network proximity to compromise systems, making it particularly dangerous in enterprise environments where such monitoring tools often reside in critical network segments.
Organizations should implement multiple layers of mitigation strategies to address this vulnerability effectively. The primary remediation involves applying the vendor-provided security patches and updates that specifically address the input validation flaws in affected CA eHealth versions. Additionally, implementing proper output encoding and content security policies can help prevent script execution in web responses. Network segmentation and web application firewalls should be deployed to monitor and filter malicious traffic patterns. Regular security assessments and input validation reviews should be conducted to identify similar vulnerabilities in other enterprise applications. The vulnerability demonstrates the critical importance of maintaining up-to-date security patches and implementing robust input sanitization practices as outlined in the OWASP Top Ten and MITRE ATT&CK framework for web application security. Organizations should also consider implementing automated security scanning tools to detect similar XSS vulnerabilities across their entire application portfolio, as these flaws often persist in legacy systems where security updates may not be regularly applied.