A vulnerability in the web-based management interface of Cisco Unified Contact Center Express (Unified CCX) could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the interface. This vulnerability exists because the web-based management interface of an affected system does not sufficiently validate user-supplied input. An attacker could exploit this vulnerability by injecting malicious code into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.
The vulnerability has a CVSS 3.1 base score of 6.1, which classifies it as medium severity. The attack vector is network-based, and the attack complexity is low, indicating that this vulnerability can be exploited easily without requiring advanced skills. Additionally, the attacker does not need any privileges to initiate an attack, but user interaction is required, which adds a layer of complexity to the exploitation.
Risk to organizations includes unauthorized access to sensitive data and potential compromise of user sessions. Organizations should prioritize patching immediately to mitigate the risks associated with this vulnerability, especially as it could be exploited in environments where users interact with the management interface.
As of now, there are no known exploits or public proof-of-concept code available for this vulnerability, but organizations should not assume that this will remain the case. Vigilance in monitoring for updates and applying patches is prudent as the vulnerability is awaiting analysis.
Vulnerability Details
The official description of this vulnerability from Cisco states that it allows an unauthenticated remote attacker to conduct cross-site scripting (XSS) attacks due to insufficient validation of user-supplied input within the web-based management interface of the Cisco Unified Contact Center Express.
This vulnerability is classified under CWE-79, which refers to improper neutralization of input during web page generation ('Cross-site Scripting').
The CVSS score of 6.1 indicates medium severity, and the metrics indicate that exploitation is feasible due to the low complexity and lack of required privileges. The potential impacts include low confidentiality and integrity impact, with no availability impact.
Technical Analysis
The root cause of this vulnerability lies in the inadequate validation of user input in the web management interface. This allows an attacker to inject malicious scripts into the management interface, which can be executed in the context of the user's browser when they interact with the affected pages.
The attack vector is network-based, meaning that an attacker can exploit this vulnerability remotely. The attack complexity is classified as low, which indicates that an attacker can easily exploit the vulnerability without needing to overcome significant barriers. No privileges are required to initiate the attack, but user interaction is necessary, as the malicious script must be executed by the user.
Confidentiality and integrity impacts are both rated as low, which suggests that the potential for data theft or manipulation is present but limited. There is no impact on availability, meaning the functionality of the system remains intact regardless of the exploitation.
Risk & Impact Analysis
Real-world deployment risk for this vulnerability is moderate, as it requires user interaction to be exploited. However, if an attacker successfully executes a cross-site scripting attack, they could potentially gain access to sensitive user data, including session cookies and other browser-stored information. This could lead to further attacks, such as account takeovers or unauthorized access to sensitive information.
Organizations should be particularly concerned if the affected systems are used in environments with high levels of user interaction or where sensitive information is processed. The urgency of addressing this vulnerability is high, and organizations should prioritize patching to mitigate potential risks.
The CVSS score of 6.1 indicates that this vulnerability should be addressed in the organization's priority patch cycle. Given the potential impact, organizations that utilize Cisco Unified Contact Center Express should take this threat seriously.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Details regarding specific affected versions of Cisco Unified Contact Center Express are currently not available. Organizations should monitor Cisco's security advisories for updates regarding affected software versions.
Mitigation & Remediation
Organizations should prioritize patching this vulnerability by applying the latest security updates from Cisco. If a patch is not available, consider implementing the following workarounds:
1. Regularly review and sanitize user input to prevent XSS attacks.
2. Implement web application firewalls to filter out malicious requests.
3. Educate users about the risks of interacting with untrusted scripts.
For further guidance, organizations can refer to resources on penetration testing and application security best practices.
Detection Guidance
Organizations should monitor logs for unusual activity and potential indicators of exploitation. Look for patterns of user input that do not follow expected formats, especially in areas where user input is processed by the web management interface.
Behavioral anomalies such as users reporting unexpected behavior after interacting with the management interface should also be investigated.
AppSecure Threat Intelligence Insight
The significance of this vulnerability lies in the continued prevalence of XSS vulnerabilities in web applications. Organizations should learn from this incident to reinforce input validation measures in their applications. As cyber threats evolve, so should the strategies employed to defend against them.
Security teams can benefit from leveraging penetration testing methodology to identify and remediate similar vulnerabilities proactively.
Additionally, organizations should stay informed about trends in vulnerabilities through resources like the vulnerability management program to ensure a proactive approach in securing their applications.
By integrating these insights into their security practices, organizations can better prepare for and mitigate potential threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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