CVE intelligence and bounded remediation

CVE-2024-39717 — Versa Director Dangerous File Type Upload Vulnerability

High CVSS 7.2 CISA KEV

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.

Severity
High
CVSS
7.2 (3.1)
Published
2024-08-22
CISA KEV
Known exploited
Ecosystem
software/application
Weaknesses
CWE-434

Affected products

  • versa-networks / versa_director / 21.2.2
  • versa-networks / versa_director / 21.2.3
  • versa-networks / versa_director / 22.1.1
  • versa-networks / versa_director / 22.1.2
  • versa-networks / versa_director / 22.1.3

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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Check exposure

  • Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
  • Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
  • Review canonicalization and containment checks across supported operating systems and storage backends.

Remediate safely

  • Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
  • Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
  • Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.

Authoritative sources

Complete CVE record and remediation plan

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