CVE-2024-39717
HIGHCVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionNVD
The Versa Director GUI provides an option to customize the look and feel of the user interface. This option is only available for a user logged with Provider-Data-Center-Admin or Provider-Data-Center-System-Admin. (Tenant level users do not have this privilege). The “Change Favicon” (Favorite Icon) option can be mis-used to upload a malicious file ending with .png extension to masquerade as image file. This is possible only after a user with Provider-Data-Center-Admin or Provider-Data-Center-System-Admin has successfully authenticated and logged in.
AnalysisAI
Versa Director GUI contains a file upload vulnerability in the 'Change Favicon' functionality that allows provider-level administrators to upload malicious files, exploited by Volt Typhoon (Chinese APT) against ISPs.
Technical ContextAI
The CWE-434 unrestricted file upload in the 'Change Favicon' feature accepts executable files alongside legitimate image files. While requiring Provider-Data-Center-Admin privileges, these credentials were obtained through prior compromise of upstream systems.
Affected ProductsAI
Versa Director GUI
RemediationAI
Apply Versa security updates. Audit provider admin accounts for unauthorized access. Check for VersaMem web shell indicators. Restrict management access to Versa Director.
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External POC / Exploit Code
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