CVE-2007-6287 in HyperVM
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the login page in Lxlabs HyperVM 2.0 allows remote attackers to inject arbitrary web script or HTML via the frm_emessage parameter, a different vector than CVE-2006-6649. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 09/12/2018
The CVE-2007-6287 vulnerability represents a cross-site scripting flaw discovered in Lxlabs HyperVM 2.0's login page implementation. This security weakness specifically targets the frm_emessage parameter, creating an avenue for remote attackers to execute malicious web scripts or HTML code within the context of authenticated user sessions. The vulnerability operates as a client-side attack vector where malicious input is not properly sanitized or validated before being rendered back to users, thereby enabling unauthorized code execution in the victim's browser environment. Unlike similar vulnerabilities such as CVE-2006-6649 which targeted different parameters, this particular flaw focuses specifically on the error message handling mechanism within the login interface.
The technical exploitation of this vulnerability occurs when an attacker submits malicious input through the frm_emessage parameter during the login process. When the system processes this input without adequate sanitization measures, the malicious script gets embedded into the web page response and subsequently executed whenever the affected page is loaded by a user. This type of vulnerability falls under CWE-79 which specifically addresses Cross-Site Scripting flaws in web applications. The attack vector leverages the trust relationship between the web application and the user's browser, allowing attackers to potentially steal session cookies, perform unauthorized actions, or redirect users to malicious websites. The vulnerability's classification as a remote attack means that no local access or authentication is required for exploitation, making it particularly dangerous for web-based systems.
The operational impact of CVE-2007-6287 extends beyond simple script injection, as it can enable more sophisticated attacks within the context of the HyperVM platform. Attackers could potentially steal administrative credentials, manipulate user sessions, or gain unauthorized access to sensitive system information. The login page being the target makes this vulnerability particularly concerning as it represents the primary entry point for user authentication, potentially allowing attackers to escalate privileges or compromise the entire system. According to ATT&CK framework, this vulnerability maps to T1059.007 which covers Scripting and T1566.002 for Phishing, as attackers could craft malicious login pages to harvest credentials. The vulnerability also aligns with T1213.002 for Data from Information Repositories, as successful exploitation could lead to unauthorized access to system information stored within the HyperVM environment.
Mitigation strategies for CVE-2007-6287 should prioritize input validation and output encoding practices. The most effective approach involves implementing strict sanitization of all user-supplied input, particularly parameters like frm_emessage that are rendered back to users. Web application firewalls should be configured to filter suspicious script patterns, while proper HTML encoding should be implemented to prevent script execution in output contexts. The system should also implement Content Security Policy headers to restrict script execution and prevent unauthorized code injection. Security patches and updates from Lxlabs should be applied immediately, as this vulnerability affects a core authentication mechanism. Additionally, regular security testing including dynamic application security testing and manual penetration testing should be conducted to identify similar input validation weaknesses in other application components. The remediation process should also include logging and monitoring of suspicious input patterns to detect potential exploitation attempts. Organizations should also consider implementing multi-factor authentication and session management controls to reduce the impact if exploitation occurs, as the vulnerability primarily affects the authentication flow rather than system-level access controls.