Raw vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XSummary
CVE-2020-37067 is a high-severity Allocation of Resources Without Limits or Throttling (CWE-770) vulnerability in Utillyty (inferred from references). Its CVSS base score is 7.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 30th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to SC-5 (Denial-of-service Protection) and SI-10 (Information Input Validation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2020-37067 is a denial-of-service vulnerability in the Filetto 1.0 FTP server, specifically affecting the processing of the FEAT command. The issue arises from a buffer overflow triggered by an oversized FEAT command consisting of 11,008 bytes of repeated characters, which causes the FTP service to crash and terminate.
Remote attackers with network access to the FTP server can exploit this vulnerability without authentication or user interaction, as indicated by its CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). Successful exploitation results in a denial of service by terminating the service, with CWE-770 (Allocation of Resources Without Limits or Throttling) as the underlying weakness.
Advisories and references, including those from VulnCheck and an Exploit-DB entry (exploit 48503), document the vulnerability and provide a proof-of-concept exploit. The Filetto project page on SourceForge and the vendor site at utillyty.eu are also referenced, though no specific patches or mitigations are detailed in the available information.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2020-30998
Vulnerability Data
Filetto 1.0 FTP server contains a denial of service vulnerability in the FEAT command processing that allows attackers to crash the service. Attackers can send an oversized FEAT command with 11,008 bytes of repeated characters to trigger a buffer overflow…
more
and terminate the FTP service.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unauthenticated remote buffer overflow in public-facing FTP server directly enables T1190 exploitation and T1499.004 application DoS via crafted FEAT command.
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
Mitigating Controls (NIST 800-53 r5) AI
Directly validates the size and content of FEAT commands to prevent buffer overflows that crash the Filetto 1.0 FTP service.
Implements denial-of-service protections to thwart oversized FEAT command attacks that terminate the FTP service.
Mandates timely flaw remediation to patch the buffer overflow vulnerability in Filetto 1.0 FTP server's FEAT command processing.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Monitoring capacity and taking action to maintain availability directly reduces unchecked resource allocation.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Baseline comparison of CPU, memory and bandwidth usage helps surface uncontrolled resource allocations before they cause service degradation.
Capacity projections and elasticity measures ensure that allocation requests are bounded and can be throttled, reducing the window in which an attacker can force unbounded resource reservations.
Defining retention periods and deletion schedules for backup copies prevents indefinite accumulation of data on storage media without corresponding resource-management controls.
Architectural redundancy and automatic failover limit the impact of an attacker who forces excessive allocations, because spare capacity can absorb the load until the primary instance recovers.
Documented incident response procedures that include activation of continuity plans and controlled recovery help ensure that resource consumption triggered by an incident is bounded and managed rather than left unbounded.
Mandating tested continuity procedures that preserve or replace resource-limiting controls prevents an attacker from exploiting the absence of throttling mechanisms during an outage.