CVE-2010-20007
Seagull FTP Client <= v3.3 Build 409 contains a stack-based buffer overflow vulnerability in its FTP directory listing parser. When the client connects to an FTP server and receives a crafted response to a LIST command containing an excessively long filename, the application fails to properly validate input length, resulting in a buffer overflow that overwrites the Structured Exception Handler (SEH). This may allow remote attackers to execute arbitrary code on the client system. This product line was discontinued and users were advised to use BlueZone Secure FTP instead, at the time of disclosure.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/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:X
- Puntuación base: 8.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.51%
- Percentil entre todas las CVEs puntuadas: 41
- Fecha de la puntuación: 3/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1203Exploitation for Client Executionexecution90 % - Impacto principal
T1059Command and Scripting Interpreterexecution85 %
Buffer overflow en parseo FTP con interacción del usuario (UI:P) al conectar a servidor FTP malicioso; AV:L pero requiere abrir/usar la aplicación. Permite ejecución arbitraria de código.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-121
Referencias
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/seagull_list_reply.rb
- https://web.archive.org/web/20111016194057/https://www.corelan.be/index.php/2010/10/12/death-of-an-ftp-client/
- https://web.archive.org/web/20120102094617/http://bluezone.rocketsoftware.com/products/secure-managed-file-transfer/bz-secure-ftp/at-a-glance
- https://www.exploit-db.com/exploits/16705
- https://www.vulncheck.com/advisories/seagull-ftp-stack-buffer-overflow
- https://www3.rocketsoftware.com/bluezone/help/v34/sftp/sftp.htm
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/seagull_list_reply.rb
- https://www.exploit-db.com/exploits/16705
JSON original (NVD)
Mostrar
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"valueDensity": "NOT_DEFINED",
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"vulnAvailabilityImpact": "HIGH",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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"affected": [
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"published": "2025-08-21T21:15:33.267",
"references": [
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"vulnStatus": "Deferred",
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"description": [
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}
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}
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"value": "Seagull FTP Client <= v3.3 Build 409 contains a stack-based buffer overflow vulnerability in its FTP directory listing parser. When the client connects to an FTP server and receives a crafted response to a LIST command containing an excessively long filename, the application fails to properly validate input length, resulting in a buffer overflow that overwrites the Structured Exception Handler (SEH). This may allow remote attackers to execute arbitrary code on the client system. This product line was discontinued and users were advised to use BlueZone Secure FTP instead, at the time of disclosure."
},
{
"lang": "es",
"value": "Seagull FTP Client (versión 3.3, compilación 409) presenta una vulnerabilidad de desbordamiento de búfer en su analizador de listados de directorios FTP. Cuando el cliente se conecta a un servidor FTP y recibe una respuesta manipulada a un comando LIST con un nombre de archivo excesivamente largo, la aplicación no valida correctamente la longitud de la entrada, lo que provoca un desbordamiento de búfer que sobrescribe el Gestor de Excepciones Estructuradas (SEH). Esto podría permitir que atacantes remotos ejecuten código arbitrario en el sistema cliente. Esta línea de productos se discontinuó y se recomendó a los usuarios utilizar BlueZone Secure FTP en su lugar en el momento de la divulgación."
}
],
"lastModified": "2026-06-16T23:19:44.747",
"sourceIdentifier": "disclosure@vulncheck.com"
}