Description: A vulnerability in the REST API and web UI of Cisco Nexus Dashboard Fabric Controller (NDFC) could allow an authenticated, low-privileged, remote attacker to perform a command injection attack against an affected device.
This vulnerability is due to improper user authorization and insufficient validation of command arguments. An attacker could exploit this vulnerability by submitting crafted commands to an affected REST API endpoint or through the web UI. A successful exploit could allow the attacker to execute arbitrary commands on the CLI of a Cisco NDFC-managed device with network-admin privileges.
Note: This vulnerability does not affect Cisco NDFC when it is configured for storage area network (SAN) controller deployment.
CVE-2024-20432
CVSS Score: 9.9 (CRITICAL)
EPSS Score: 0.04%
Risk Score: 6.93 (HIGH)
Risk Score dựa trên điểm CVSS và EPSS. Điểm này chỉ mang tính chất tham khảo và không được công nhận quốc tế.
1. Technical Attack Analysis:
– Attack Techniques :
– Command Injection (T1059) : The attacker leverages the vulnerability to send crafted commands through the REST API or web UI. By exploiting improper user authorization and insufficient validation, the attacker can inject arbitrary commands.
– Execution via CLI (T1053.002) : Successful exploitation allows the attacker to execute commands with network-admin privileges, potentially leading to unauthorized access and manipulation of network configurations.
– Possible Outcomes of Exploitation :
– Unauthorized access to network resources and devices.
– Alteration or deletion of critical network configurations.
– Potential pivoting to other devices within the network.
– Installation of malicious software or backdoors on the affected device.
– Exfiltration of sensitive data from the network.
2. Mitigation Measures:
– Validate user input to ensure proper command argument handling.
– Implement strict access controls and user permissions for REST API and web UI.
– Regularly update and patch Cisco NDFC to address known vulnerabilities.
– Employ network segmentation to limit the impact of potential exploits.
– Monitor and log all API and UI access for suspicious activity.
– Conduct regular security audits and vulnerability assessments.
– Educate users about secure coding practices and the risks of command injection.
Mitre ATT&CK Technical v15.1
T1053.002 – At
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