CVE-2010-20121

{"id": "CVE-2010-20121", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "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"}}]}, "published": "2025-08-21T20:15:31.610", "references": [{"url": "https://paulmakowski.wordpress.com/2010/02/28/increasing-payload-size-w-return-address-overwrite/", "tags": ["Exploit", "Third Party Advisory"], "source": "[email protected]"}, {"url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/easyftp_cwd_fixret.rb", "tags": ["Exploit"], "source": "[email protected]"}, {"url": "https://seclists.org/bugtraq/2010/Feb/202", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "source": "[email protected]"}, {"url": "https://www.exploit-db.com/exploits/11668", "tags": ["Exploit", "VDB Entry"], "source": "[email protected]"}, {"url": "https://www.exploit-db.com/exploits/12312", "tags": ["Exploit", "VDB Entry"], "source": "[email protected]"}, {"url": "https://www.exploit-db.com/exploits/14402", "tags": ["Exploit", "VDB Entry"], "source": "[email protected]"}, {"url": "https://www.exploit-db.com/exploits/16737", "tags": ["Exploit", "VDB Entry"], "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/easyftp-server-cwd-command-stack-buffer-overflow", "tags": ["Third Party Advisory"], "source": "[email protected]"}, {"url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/ftp/easyftp_cwd_fixret.rb", "tags": ["Exploit"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}, {"url": "https://seclists.org/bugtraq/2010/Feb/202", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}, {"url": "https://www.exploit-db.com/exploits/11668", "tags": ["Exploit", "VDB Entry"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}, {"url": "https://www.exploit-db.com/exploits/12312", "tags": ["Exploit", "VDB Entry"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}, {"url": "https://www.exploit-db.com/exploits/14402", "tags": ["Exploit", "VDB Entry"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}, {"url": "https://www.exploit-db.com/exploits/16737", "tags": ["Exploit", "VDB Entry"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-121"}]}], "descriptions": [{"lang": "en", "value": "EasyFTP Server versions up to 1.7.0.11 contain a stack-based buffer overflow vulnerability in the FTP command parser. When processing the CWD (Change Working Directory) command, the server fails to properly validate the length of the input string, allowing attackers to overwrite memory on the stack. This flaw enables remote code execution without authentication, as EasyFTP allows anonymous access by default. The vulnerability was resolved in version 1.7.0.12, after which the product was renamed \u201cUplusFtp.\u201d"}, {"lang": "es", "value": "Las versiones de EasyFTP Server hasta la 1.7.0.11 contienen una vulnerabilidad de desbordamiento de b\u00fafer en la pila del analizador de comandos FTP. Al procesar el comando CWD (Cambiar directorio de trabajo), el servidor no valida correctamente la longitud de la cadena de entrada, lo que permite a los atacantes sobrescribir la memoria en la pila. Esta falla permite la ejecuci\u00f3n remota de c\u00f3digo sin autenticaci\u00f3n, ya que EasyFTP permite el acceso an\u00f3nimo por defecto. La vulnerabilidad se resolvi\u00f3 en la versi\u00f3n 1.7.0.12, tras la cual el producto pas\u00f3 a llamarse \"UplusFtp\"."}], "lastModified": "2025-09-10T20:03:36.037", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:easyftp_server_project:easyftp_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C588FCA3-A10E-4DD4-9042-5EF4748FAEBA", "versionEndExcluding": "1.7.0.12"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}