A vulnerability in the web-based Cisco IOx application hosting environment management interface of Cisco IOS XE Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. This vulnerability is due to insufficient validation of 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. To exploit this vulnerability, the attacker must have valid administrative credentials.
The CVSS score of this vulnerability is 4.8, which signifies a medium severity level. This rating indicates that while the vulnerability is concerning, it may not pose an immediate threat to all organizations. However, the risk to organizations includes potential unauthorized access to sensitive information and manipulation of the web interface, leading to further exploitation.
Organizations should prioritize patching immediately, as the potential for exploitation could allow attackers to gain significant control over affected systems. The urgency for defenders cannot be overstated, and immediate action is advised to mitigate the threat.
At present, there is no public exploit confirmed for this vulnerability, though the possibility of an attack exists if conditions are met. Organizations are encouraged to stay vigilant and monitor for any updates related to exploit availability.
Vulnerability Details
The vulnerability description states that an attacker could exploit the Cisco IOx application hosting environment management interface due to insufficient validation of user input, leading to stored XSS attacks. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N, which highlights the attack vector as network-based, requiring high privileges and user interaction.
The CWE classification for this vulnerability is CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')). This highlights the importance of input validation in web applications to prevent script injection.
Technical Analysis
The root cause of this vulnerability stems from inadequate input validation within the web-based management interface. Attackers may leverage this weakness by submitting crafted input that the system fails to properly sanitize. The attack vector is network-based, meaning attackers can initiate the exploitation remotely.
The complexity of the attack is low, as it requires only that the attacker have valid administrative credentials and the user to interact with the malicious content. Privileges required are high, as administrative credentials are necessary. User interaction is required for successful exploitation.
The impact on confidentiality and integrity is assessed as low, while availability impact is none. However, the ability to execute arbitrary code poses a significant risk to the affected users and systems.
Risk & Impact Analysis
The real-world deployment risk associated with this vulnerability is notable. Organizations utilizing Cisco IOS XE Software should recognize that the potential for stored XSS attacks could lead to unauthorized access to sensitive information or the manipulation of system functionality. With a CVSS score of 4.8, this vulnerability is classified as medium severity. Organizations should address this issue in their priority patch cycle as the implications of exploitation could expose critical assets.
The urgency of remediation is underscored by the vulnerability's potential blast radius. If successfully exploited, the attacker could affect not only the compromised device but also any connected systems or networks, leading to broader organizational impact.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch are affected by this vulnerability. Organizations utilizing Cisco IOS XE Software should ensure they are using the latest version that addresses this issue.
Mitigation & Remediation
Organizations should prioritize updating their Cisco IOS XE Software to the latest version as soon as it becomes available to address this vulnerability. In the meantime, administrative access should be tightly controlled to mitigate potential exploitation. Configuration hardening should be implemented, ensuring that user input validation is enforced throughout the web management interface.
For comprehensive testing, organizations may consider engaging in penetration testing services to identify and remediate similar vulnerabilities.
Detection Guidance
Organizations should monitor logs for unusual behavior indicative of XSS attacks, such as unexpected script execution or anomalies in user interactions with the web interface. Additionally, network signatures should be established to detect potential exploit attempts targeting this vulnerability.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in its potential to expose sensitive information and lead to further attacks within the organization. It highlights the necessity for security teams to implement rigorous input validation practices within their applications.
Organizations should also consider reviewing their vulnerability management program to better assess their risk posture and improve remediation efforts.
This incident serves as a reminder of the ongoing challenges faced in application security, particularly in managing user input. Staying abreast of emerging threats and vulnerabilities is crucial for maintaining a robust security posture.
For enhancing detection capabilities, organizations may benefit from engaging in API penetration testing to identify similar vulnerabilities in their systems.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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