CVE-2022-20643 in Security Manager
Summary
by MITRE • 01/14/2022
Multiple vulnerabilities in the web-based management interface of Cisco Security Manager could allow an unauthenticated, remote attacker to conduct cross-site scripting attacks against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the web-based management interface. An attacker could exploit these vulnerabilities by persuading a user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or access sensitive, browser-based information.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 01/16/2022
Cisco Security Manager contains multiple cross-site scripting vulnerabilities that stem from inadequate input validation within its web-based management interface. These flaws represent a critical security weakness that allows unauthenticated remote attackers to execute malicious scripts against authenticated users. The vulnerabilities arise from insufficient sanitization of user-supplied input parameters, creating opportunities for attackers to inject malicious code that executes within the victim's browser context. The attack vector requires social engineering to convince users to click on crafted links that contain malicious payloads, making these vulnerabilities particularly dangerous in enterprise environments where administrators frequently interact with web interfaces. The affected interface serves as a central point of administration for security policies and configurations, amplifying the potential impact of successful exploitation.
The technical implementation of these XSS vulnerabilities demonstrates a classic failure in input validation mechanisms within the web application layer. Attackers can craft malicious URLs containing script code that gets executed when victims navigate to the interface, potentially leading to session hijacking, credential theft, or data exfiltration. The lack of proper input sanitization means that user-supplied parameters are directly rendered without adequate filtering or encoding, creating an environment where malicious scripts can execute with the privileges of the authenticated user. This weakness directly maps to CWE-79 which describes Cross-site Scripting vulnerabilities, and aligns with ATT&CK technique T1566.001 for Phishing through Social Engineering. The vulnerabilities affect the web interface's handling of various input parameters, making them particularly challenging to defend against since they can be triggered through multiple vectors within the management console.
The operational impact of these vulnerabilities extends beyond simple script execution, as successful exploitation could allow attackers to access sensitive browser-based information and potentially escalate privileges within the security management environment. Administrators who interact with the affected interface may unknowingly execute malicious code that captures their session tokens or redirects them to malicious sites. The consequences could include unauthorized access to security policies, configuration changes, or complete compromise of the security management infrastructure. Organizations relying on Cisco Security Manager for their network security operations face significant risk since the interface serves as a critical administrative point for managing security policies across their network infrastructure. The vulnerabilities are particularly concerning because they do not require authentication to exploit, making them accessible to any attacker with knowledge of the target environment.
Mitigation strategies should focus on implementing comprehensive input validation and output encoding mechanisms within the web interface to prevent malicious code injection. Organizations should deploy web application firewalls to monitor and filter suspicious traffic patterns that may indicate XSS attempts, while also ensuring that all user-supplied inputs are properly sanitized before processing. Network segmentation and access controls can help limit the potential impact of successful exploitation by restricting access to the management interface. Regular security assessments and penetration testing should be conducted to identify additional vulnerabilities in the web interface, while implementing multi-factor authentication for administrative access can provide additional protection layers. Cisco has released patches addressing these vulnerabilities, and organizations should prioritize applying these updates to maintain system integrity and prevent exploitation attempts that could lead to complete compromise of their security management infrastructure.