CVE-2024-39717
Versa Director Dangerous File Type Upload Vulnerability
Versa Director
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.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 23 August 2024. US federal agencies were required to remediate it by 13 September 2024.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 4%, which is higher than 90.6% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2024-39717 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2024-39717.
What does CVE-2024-39717 affect?
CVE-2024-39717 affects Versa Director. 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.
How severe is CVE-2024-39717?
CVE-2024-39717 is rated HIGH with a CVSS base score of 7.2. EPSS puts the probability of exploitation in the next 30 days at 4%, higher than 90.6% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 13 September 2024.
How should organisations respond to CVE-2024-39717?
Apply the vendor patch for Versa Director as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.