CVE-2018-0223 in Security Manager
Summary
by MITRE
A vulnerability in DesktopServlet in the web-based management interface of Cisco Security Manager could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting (XSS) attack against a user of the web-based interface. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive browser-based information. Cisco Bug IDs: CSCuy79668.
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Analysis
by VulDB Data Team • 02/17/2023
The vulnerability identified as CVE-2018-0223 affects Cisco Security Manager's DesktopServlet component within its web-based management interface, representing a critical security flaw that enables unauthenticated remote attackers to execute reflected cross-site scripting attacks. This vulnerability specifically targets the web interface's insufficient input validation mechanisms, creating an exploitable entry point that bypasses normal authentication requirements. The flaw resides in how the DesktopServlet processes user-supplied input parameters, failing to properly sanitize or validate data received from external sources before incorporating it into web responses.
The technical implementation of this vulnerability stems from the absence of proper input sanitization controls within the web-based management interface's processing pipeline. When the DesktopServlet receives HTTP requests containing maliciously crafted parameters, it fails to validate or escape these inputs before returning them to the user's browser in web page content. This reflected XSS vulnerability operates through the injection of malicious scripts that are reflected back to the victim's browser when they click on a specially crafted link, making it particularly dangerous in targeted attack scenarios. The vulnerability aligns with CWE-79, which specifically addresses Cross-site Scripting flaws in web applications, and demonstrates how insufficient input validation creates persistent security risks in web interfaces.
The operational impact of CVE-2018-0223 extends beyond simple script injection, as successful exploitation could enable attackers to execute arbitrary code within the context of the web interface, potentially compromising the entire management session. Attackers could leverage this vulnerability to access sensitive browser-based information, manipulate user sessions, or redirect victims to malicious websites. The reflected nature of the attack means that the malicious payload is not stored on the server but is instead reflected off the server in response to the malicious request, making it difficult to detect through traditional server-side logging mechanisms. This vulnerability particularly affects organizations that rely on Cisco Security Manager for network security management, as it could allow attackers to compromise the management interface and potentially gain access to critical network security configurations.
Mitigation strategies for this vulnerability should include immediate implementation of input validation controls and output encoding mechanisms within the web-based management interface. Organizations should apply the relevant Cisco security patches and updates released to address this specific flaw, while also implementing web application firewalls to detect and prevent malicious input attempts. Network segmentation and access controls should be enhanced to limit exposure of the affected interface to trusted users only. The vulnerability demonstrates the importance of following secure coding practices and implementing proper input validation as outlined in the OWASP Top Ten security guidelines. Additionally, regular security assessments and penetration testing should be conducted to identify similar input validation weaknesses in other web applications and interfaces within the organization's infrastructure, as reflected XSS vulnerabilities often indicate broader security implementation gaps that require comprehensive remediation approaches.