Background exploitation KEV catalog

CVE-2024-39717

Versa Director Dangerous File Type Upload Vulnerability

CheckOps priority index

4.0/10 Patch within 7 days

Severity6.6

Probability0.4

Exploitation2/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 4.0% higher than 90.5% of CVEs

CVSS 3.0 6.6 AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:

Exploited for 802 days 23 Aug 2024

CISA due date 13 Sept 2024 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 2 / 5

KEV catalog (CISA)23 Aug 2024
Exploited in EUVD (ENISA)23 Aug 2024
Used by ransomwareno
EPSS above 10 %4.0%
No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

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.

Affected products

Director

Affected versions

21.2.2 ≤21.2.2
22.1.2 before 2024-06-21 ≤22.1.2 before 2024-06-21
21.2.3 before 2024-06-21 <21.2.3 before 2024-06-21
22.1.1 ≤22.1.1
22.1.3 before 2024-06-21 ≤22.1.3 before 2024-06-21

Weaknesses (CWE)

CWE-434

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

22 Aug 2024
Published
23 Aug 2024
Exploitation reported (ENISA)
23 Aug 2024
Added to the KEV catalog
13 Sept 2024
CISA remediation due date

References

Other exploited vulnerabilities from the same vendor

CVE-2025-34026Versa Concerto Improper Authentication Vulnerability
8.5 · Background exploitation