CVE-2022-20645 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
The vulnerability identified as CVE-2022-20645 represents a critical cross-site scripting flaw within Cisco Security Manager's web-based management interface. This security weakness stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied data before processing. The vulnerability affects the web interface component of Cisco Security Manager, which serves as the primary administrative portal for managing security policies and configurations. Attackers can exploit this weakness by crafting malicious links that, when clicked by an authenticated user, execute arbitrary JavaScript code within the victim's browser context. The flaw exists because the application does not adequately validate or escape input parameters that are subsequently rendered in web responses, creating an environment where malicious scripts can be injected and executed.
The technical exploitation of this vulnerability follows a classic cross-site scripting attack pattern where an attacker crafts a malicious URL containing embedded script code that gets executed when a victim user navigates to the crafted link. The web-based management interface processes user input without proper sanitization, allowing malicious payloads to persist in the application's response. This insufficient input validation directly maps to CWE-79, which defines cross-site scripting as a common vulnerability where untrusted data is improperly handled in web applications. The attack vector requires social engineering to convince a user to click the malicious link, but once executed, the attacker gains the ability to execute arbitrary code in the user's browser session. This capability enables attackers to perform actions such as stealing session cookies, modifying interface content, redirecting users to malicious sites, or accessing sensitive information that the authenticated user can view through the management interface.
The operational impact of CVE-2022-20645 extends beyond simple script execution, as it allows attackers to potentially escalate privileges and access sensitive security configurations. Since Cisco Security Manager handles critical network security policies and management functions, an attacker who successfully exploits this vulnerability could gain unauthorized access to security policies, network configurations, and sensitive operational data. The remote nature of the attack means that exploitation can occur from anywhere on the internet without requiring physical access to the network infrastructure. This vulnerability particularly affects organizations that rely heavily on web-based management interfaces for their security operations, as it creates a persistent threat vector that can be leveraged for ongoing surveillance or malicious activity. The lack of authentication requirements for the initial exploitation phase makes this vulnerability especially dangerous, as it can be exploited against any user who interacts with the malicious content.
Organizations should implement multiple layers of defense to mitigate the risks associated with CVE-2022-20645. Immediate remediation efforts should focus on applying the latest security patches provided by Cisco to address the input validation deficiencies. Network segmentation and access controls should be implemented to limit exposure of the web management interface to trusted networks only. Web application firewalls can provide additional protection by filtering suspicious input patterns and detecting potential XSS attacks in real-time. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other web applications within the organization's infrastructure. The ATT&CK framework categorizes this vulnerability under the T1059.007 technique for script injection, highlighting the importance of implementing proper input validation and output encoding mechanisms. Organizations should also consider implementing security awareness training to help users recognize and avoid clicking suspicious links that could lead to XSS exploitation. Monitoring for unusual activity patterns in the web management interface logs can help detect potential exploitation attempts. The vulnerability demonstrates the critical importance of input validation as outlined in the OWASP Top Ten security principles, where inadequate input validation consistently ranks among the most prevalent security weaknesses in web applications.