CVE-2015-8247 in Internet Management Software
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in synnefoclient in Synnefo Internet Management Software (IMS) 2015 allows remote attackers to inject arbitrary web script or HTML via the plan_name parameter to packagehistory/listusagesdata.
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Analysis
by VulDB Data Team • 07/01/2022
The CVE-2015-8247 vulnerability represents a critical cross-site scripting flaw within the Synnefo Internet Management Software version 2015, specifically affecting the synnefoclient component. This vulnerability resides in the packagehistory/listusagesdata endpoint where the plan_name parameter fails to properly sanitize user input, creating an exploitable vector for malicious actors to execute arbitrary web scripts or HTML code within the context of affected user sessions. The flaw demonstrates a classic input validation weakness that enables attackers to bypass security controls designed to prevent malicious code execution.
This vulnerability operates through a standard XSS attack pattern where an attacker crafts a malicious payload containing script code within the plan_name parameter and submits it to the vulnerable endpoint. When the application processes this input without adequate sanitization or encoding, the malicious code gets executed in the victim's browser when the page containing the reflected or stored malicious content is rendered. The attack can occur through various methods including reflected XSS where the payload is immediately reflected back to the user or stored XSS where the malicious code gets stored on the server and executed later when other users view the affected content. The vulnerability falls under CWE-79 which specifically addresses cross-site scripting flaws in web applications.
The operational impact of CVE-2015-8247 extends beyond simple script injection, as it provides attackers with the capability to perform session hijacking, steal user credentials, redirect users to malicious websites, or execute unauthorized actions within the application context. Attackers could potentially leverage this vulnerability to escalate privileges, access sensitive user data, or manipulate the application's functionality. The vulnerability particularly affects users of the Synnefo IMS platform who may be logged into the system with administrative privileges, potentially allowing for complete system compromise. The attack vector requires minimal technical expertise and can be executed remotely without requiring authentication, making it particularly dangerous in enterprise environments where the software is deployed.
Mitigation strategies for CVE-2015-8247 should prioritize immediate input validation and output encoding implementations to prevent malicious code from being executed. Organizations should implement proper parameter validation on all user-supplied inputs, particularly those used in dynamic content generation or display. The recommended approach includes implementing strict input sanitization that removes or encodes potentially dangerous characters such as angle brackets, script tags, and other HTML entities that could be used to construct malicious payloads. Additionally, the application should employ Content Security Policy headers to limit script execution and prevent unauthorized code injection. The vulnerability aligns with ATT&CK technique T1059.007 which covers scripting languages and T1566.001 which addresses spearphishing attachments, both of which can be leveraged to exploit such XSS vulnerabilities. Organizations should also ensure proper patch management protocols are in place to address similar vulnerabilities in the future and maintain comprehensive monitoring for suspicious activities that might indicate exploitation attempts.