CVE-2024-39717: 
Versa Director vulnerability analysis and mitigation

CVE-2024-39717 affects Versa Director, a key management platform for Versa SD-WAN solutions commonly used by Internet Service Providers (ISPs) and Managed Service Providers (MSPs). The vulnerability was discovered in August 2024 and involves a dangerous file upload flaw in the GUI customization feature. This vulnerability affects multiple versions of Versa Director including 21.2.2, 21.2.3, 22.1.1, 22.1.2, and 22.1.3 (NVD, Versa Advisory).

The vulnerability has received a CVSS v3.1 base score of 7.2 (High) from NVD. It allows authenticated users with Provider-Data-Center-Admin or Provider-Data-Center-System-Admin privileges to upload malicious files disguised as .png images through the 'Change Favicon' feature. The vulnerability is classified as CWE-434 (Unrestricted Upload of File with Dangerous Type) and requires successful authentication before exploitation (NVD).

If exploited, the vulnerability can lead to unauthorized access and potential system compromise. The impact is particularly significant given that Versa Director is a critical component for managing network configurations in ISP and MSP environments. According to scanning results, 31 Versa Director instances are exposed to the internet, with 16 located in the United States, indicating a substantial attack surface (Cyble).

Versa Networks has released patches and recommends upgrading to version 22.1.4 or later. Organizations should implement system hardening guidelines, apply firewall requirements, and ensure proper network security measures. Additional recommendations include deploying advanced network traffic analysis tools, implementing Multi-Factor Authentication (MFA), reviewing user credentials regularly, and implementing network segmentation (Versa Advisory).