{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2010-20103", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2025-08-19T16:00:37.400Z", "datePublished": "2025-08-20T15:38:46.697Z", "dateUpdated": "2025-08-22T15:44:20.670Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "modules": ["core daemon"], "product": "ProFTPD (Professional FTP Daemon)", "repo": "https://github.com/proftpd/proftpd", "vendor": "ProFTPD Project", "versions": [{"status": "affected", "version": "1.3.3c"}]}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>A malicious backdoor was embedded in the official ProFTPD 1.3.3c source tarball distributed between November 28 and December 2, 2010. The backdoor implements a hidden FTP command trigger that, when invoked, causes the server to execute arbitrary shell commands with root privileges. This allows remote, unauthenticated attackers to run any OS command on the FTP server host.</p>"}], "value": "A malicious backdoor was embedded in the official ProFTPD 1.3.3c source tarball distributed between November 28 and December 2, 2010. The backdoor implements a hidden FTP command trigger that, when invoked, causes the server to execute arbitrary shell commands with root privileges. This allows remote, unauthenticated attackers to run any OS command on the FTP server host."}], "impacts": [{"capecId": "CAPEC-88", "descriptions": [{"lang": "en", "value": "CAPEC-88 OS Command Injection"}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 9.3, "baseSeverity": "CRITICAL", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-912", "description": "CWE-912 Hidden Functionality", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2025-08-20T15:38:46.697Z"}, "references": [{"tags": ["vendor-advisory", "patch"], "url": "https://web.archive.org/web/20111107212129/http://rsync.proftpd.org/"}, {"tags": ["exploit"], "url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/ftp/proftpd_133c_backdoor.rb"}, {"tags": ["exploit"], "url": "https://www.exploit-db.com/exploits/15662"}, {"tags": ["exploit"], "url": "https://www.exploit-db.com/exploits/16921"}, {"tags": ["third-party-advisory"], "url": "https://advisories.checkpoint.com/defense/advisories/public/2011/cpai-2010-151.html/"}, {"tags": ["product"], "url": "https://github.com/proftpd/proftpd"}, {"tags": ["product"], "url": "http://www.proftpd.org/"}, {"tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/proftpd-backdoor-command-execution"}], "source": {"discovery": "UNKNOWN"}, "tags": ["x_known-exploited-vulnerability"], "title": "ProFTPD 1.3.3c Backdoor Command Execution", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"references": [{"url": "https://www.exploit-db.com/exploits/16921", "tags": ["exploit"]}, {"url": "https://www.exploit-db.com/exploits/15662", "tags": ["exploit"]}, {"url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/ftp/proftpd_133c_backdoor.rb", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-08-22T15:44:16.891816Z", "id": "CVE-2010-20103", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-08-22T15:44:20.670Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2010-20103", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-08-22T15:44:16.891816Z"}}}], "references": [{"url": "https://www.exploit-db.com/exploits/16921", "tags": ["exploit"]}, {"url": "https://www.exploit-db.com/exploits/15662", "tags": ["exploit"]}, {"url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/ftp/proftpd_133c_backdoor.rb", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-08-22T15:43:46.558Z"}}], "cna": {"tags": ["x_known-exploited-vulnerability"], "title": "ProFTPD 1.3.3c Backdoor Command Execution", "source": {"discovery": "UNKNOWN"}, "impacts": [{"capecId": "CAPEC-88", "descriptions": [{"lang": "en", "value": "CAPEC-88 OS Command Injection"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"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", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://github.com/proftpd/proftpd", "vendor": "ProFTPD Project", "modules": ["core daemon"], "product": "ProFTPD (Professional FTP Daemon)", "versions": [{"status": "affected", "version": "1.3.3c"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://web.archive.org/web/20111107212129/http://rsync.proftpd.org/", "tags": ["vendor-advisory", "patch"]}, {"url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/ftp/proftpd_133c_backdoor.rb", "tags": ["exploit"]}, {"url": "https://www.exploit-db.com/exploits/15662", "tags": ["exploit"]}, {"url": "https://www.exploit-db.com/exploits/16921", "tags": ["exploit"]}, {"url": "https://advisories.checkpoint.com/defense/advisories/public/2011/cpai-2010-151.html/", "tags": ["third-party-advisory"]}, {"url": "https://github.com/proftpd/proftpd", "tags": ["product"]}, {"url": "http://www.proftpd.org/", "tags": ["product"]}, {"url": "https://www.vulncheck.com/advisories/proftpd-backdoor-command-execution", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "A malicious backdoor was embedded in the official ProFTPD 1.3.3c source tarball distributed between November 28 and December 2, 2010. The backdoor implements a hidden FTP command trigger that, when invoked, causes the server to execute arbitrary shell commands with root privileges. This allows remote, unauthenticated attackers to run any OS command on the FTP server host.", "supportingMedia": [{"type": "text/html", "value": "<p>A malicious backdoor was embedded in the official ProFTPD 1.3.3c source tarball distributed between November 28 and December 2, 2010. The backdoor implements a hidden FTP command trigger that, when invoked, causes the server to execute arbitrary shell commands with root privileges. This allows remote, unauthenticated attackers to run any OS command on the FTP server host.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-912", "description": "CWE-912 Hidden Functionality"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2025-08-20T15:38:46.697Z"}}}, "cveMetadata": {"cveId": "CVE-2010-20103", "state": "PUBLISHED", "dateUpdated": "2025-08-22T15:44:20.670Z", "dateReserved": "2025-08-19T16:00:37.400Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2025-08-20T15:38:46.697Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:proftpd:proftpd:1.3.3:c:*:*:*:*:*:*", "matchCriteriaId": "15837EC9-F392-4ACD-A292-7ECD413D54BA", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A malicious backdoor was embedded in the official ProFTPD 1.3.3c source tarball distributed between November 28 and December 2, 2010. The backdoor implements a hidden FTP command trigger that, when invoked, causes the server to execute arbitrary shell commands with root privileges. This allows remote, unauthenticated attackers to run any OS command on the FTP server host."}, {"lang": "es", "value": "Una puerta trasera maliciosa se integr\u00f3 en official ProFTPD 1.3.3c source tarball, distribuido entre el 28 de noviembre y el 2 de diciembre de 2010. Esta puerta trasera implementa un disparador de comandos FTP oculto que, al ser invocado, provoca que el servidor ejecute comandos de shell arbitrarios con privilegios de root. Esto permite a atacantes remotos no autenticados ejecutar cualquier comando del sistema operativo en el host del servidor FTP."}], "id": "CVE-2010-20103", "lastModified": "2025-09-24T17:02:12.460", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.3, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2025-08-20T16:15:34.137", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Product"], "url": "http://www.proftpd.org/"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://advisories.checkpoint.com/defense/advisories/public/2011/cpai-2010-151.html/"}, {"source": "disclosure@vulncheck.com", "tags": ["Product"], "url": "https://github.com/proftpd/proftpd"}, {"source": "disclosure@vulncheck.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/ftp/proftpd_133c_backdoor.rb"}, {"source": "disclosure@vulncheck.com", "tags": ["Release Notes"], "url": "https://web.archive.org/web/20111107212129/http://rsync.proftpd.org/"}, {"source": "disclosure@vulncheck.com", "tags": ["Exploit", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/15662"}, {"source": "disclosure@vulncheck.com", "tags": ["Exploit", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/16921"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/proftpd-backdoor-command-execution"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"], "url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/ftp/proftpd_133c_backdoor.rb"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/15662"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/16921"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-912"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

{"created": "2025-08-21T12:58:58.237852+00:00", "updated": "2025-08-21T12:58:58.237911+00:00", "vendors": ["proftpd", "proftpd$PRODUCT$proftpd", "proftpd_project", "proftpd_project$PRODUCT$proftpd"]}