CVE-2022-40628
Published: 23 September 2022
Summary
CVE-2022-40628 is a critical-severity Code Injection (CWE-94) vulnerability in Tacitine En6200-Prime Quad-35 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 8.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2022-40628 is an improper control of code generation vulnerability (CWE-94) affecting the web-based management interface of Tacitine Firewall on EN6200-PRIME QUAD-35 and EN6200-PRIME QUAD-100 appliances running versions 19.1.1 through 22.20.1 inclusive. The flaw carries a CVSS 3.1 base score of 9.8, reflecting network attack vector, low attack complexity, and no required authentication or user interaction.
An unauthenticated remote attacker can exploit the issue by submitting a specially crafted HTTP request to the management interface, resulting in arbitrary command execution on the device with full confidentiality, integrity, and availability impact.
Public advisories from Cert-In and the vendor Tacitine provide further details on the vulnerability and are available at https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01&VLCODE=CIVN-2022-0363 and https://tacitine.com/newdownload/CVE-2022-40628.pdf. The EPSS score has remained flat at 0.0656 with no material increase observed after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-43902
Vulnerability details
This vulnerability exists in Tacitine Firewall, all versions of EN6200-PRIME QUAD-35 and EN6200-PRIME QUAD-100 between 19.1.1 to 22.20.1 (inclusive), due to improper control of code generation in the Tacitine Firewall web-based management interface. An unauthenticated remote attacker could exploit this…
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vulnerability by sending a specially crafted http request on the targeted device. Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to execute arbitrary commands on the targeted device.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Makes persistent code injection into loaded programs impossible when the executable image itself resides on hardware-protected read-only media.
Dynamically generated code can be produced and executed inside the isolated chamber, preventing host compromise from code-injection payloads.
Validates inputs used in dynamic code generation to block injected directives.
Directly prevents execution of attacker-supplied code written into data memory regions.