CVE-2024-20418: Critical Vulnerability in Cisco Unified Industrial Wireless Software

A critical vulnerability in the web-based management interface of Cisco Unified Industrial Wireless Software for Cisco Ultra-Reliable Wireless Backhaul (URWB) Access Points could allow an unauthenticated, remote attacker to perform command injection attacks with root privileges on the underlying operating system. This vulnerability is due to improper validation of input to the web-based management interface. An attacker could exploit this vulnerability by sending crafted HTTP requests to the web-based management interface of an affected system. A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the underlying operating system of the affected device.

With a CVSS score of 10, this vulnerability is categorized as critical, indicating a significant risk to organizations. Attackers may leverage this vulnerability to gain unauthorized access and control over affected devices, potentially leading to severe operational disruptions. Given the severity, organizations should prioritize patching immediately.

As of now, there are no known exploits publicly available for this vulnerability, and it is not included in the Known Exploited Vulnerabilities (KEV) catalog. However, the potential for exploitation exists, which necessitates immediate attention from security teams. Organizations must remain vigilant and proactive in addressing this vulnerability.

Overall, the urgency for defenders is high. Organizations utilizing Cisco Unified Industrial Wireless Software should assess their exposure and implement necessary patches as soon as they become available to mitigate the risks associated with this vulnerability.

Vulnerability Details

The vulnerability allows an unauthenticated remote attacker to perform command injection attacks with root privileges on affected systems. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H, indicating a low complexity attack vector with no required privileges or user interaction. The impacts are significant, affecting confidentiality, integrity, and availability.

Technical Analysis

The root cause of this vulnerability stems from improper input validation in the web-based management interface, allowing for command injection. The attack vector is network-based, and the complexity is low, requiring no privileges or user interaction. If exploited, the confidentiality, integrity, and availability of the system can be compromised.

Risk & Impact Analysis

Risk to organizations includes potential unauthorized access to critical systems and data. The blast radius for this vulnerability could be extensive, affecting all instances of the Cisco Unified Industrial Wireless Software deployed in an organization. Given the CVSS score of 10 and the absence of known mitigations, organizations should address this vulnerability with high urgency.

Exploitation Status

Affected Versions

All versions prior to vendor patch are affected.

Mitigation & Remediation

Organizations should prioritize patching immediately. Regularly review and apply the latest updates and patches from the vendor. If a patch is not yet available, consider implementing network controls to restrict access to the web-based management interface.

Detection Guidance

Monitor logs for indicators of unauthorized access attempts and unusual HTTP request patterns targeting the management interface. Establish alerts for any detected anomalies.

AppSecure Threat Intelligence Insight

This vulnerability highlights the importance of secure coding practices, particularly around input validation. Organizations should continuously assess their security posture and implement comprehensive security testing, including penetration testing to identify similar weaknesses in their systems. For more in-depth security insights, organizations can refer to our blog on penetration testing methodology and vulnerability management program design to enhance their defensive strategies.