CVE-2026-35025

{"id": "CVE-2026-35025", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-35025", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-06-24T15:00:28.448881Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.6, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/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": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "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"}}]}, "affected": [{"source": "disclosure@vulncheck.com", "affectedData": [{"repo": "https://github.com/proftpd/proftpd", "vendor": "ProFTPD Project", "product": "ProFTPD", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "1.3.9b"}, {"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "1.3.10rc2"}], "packageURL": "pkg:github/proftpd/proftpd", "defaultStatus": "affected"}]}], "published": "2026-06-24T14:17:30.950", "references": [{"url": "http://www.proftpd.org/", "tags": ["Product", "Release Notes"], "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/proftpd/proftpd/issues/2170", "tags": ["Issue Tracking", "Mitigation"], "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/proftpd-acl-bypass-via-proc-self-root-path-prefix-in-rnfr", "tags": ["Third Party Advisory"], "source": "disclosure@vulncheck.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-59"}]}], "descriptions": [{"lang": "en", "value": "ProFTPD through 1.3.9b and 1.3.10rc2 contains an access control bypass vulnerability that allows authenticated FTP users to circumvent Directory ACL restrictions by prefixing paths with /proc/self/root in the RNFR command handler. Attackers can exploit the unresolved symlink components in dir_canonical_path() to cause dir_check() to perform lexical path comparisons that match no configured Directory block, enabling rename operations on files in DenyAll-protected directories and subsequent retrieval of those files. Mitigation: Sessions configured with DefaultRoot (chroot) are not affected, as chroot changes the directory to which /proc/self/root resolves."}, {"lang": "es", "value": "ProFTPD hasta 1.3.9b y 1.3.10rc2 contiene una vulnerabilidad de omisi\u00f3n de control de acceso que permite a los usuarios FTP autenticados eludir las restricciones de ACL de directorio prefijando rutas con /proc/self/root en el gestor del comando RNFR. Los atacantes pueden explotar los componentes de symlink no resueltos en dir_canonical_path() para hacer que dir_check() realice comparaciones l\u00e9xicas de rutas que no coinciden con ning\u00fan bloque de Directorio configurado, lo que permite operaciones de renombrado en archivos en directorios protegidos por DenyAll y la posterior recuperaci\u00f3n de esos archivos. Mitigaci\u00f3n: Las sesiones configuradas con DefaultRoot (chroot) no se ven afectadas, ya que chroot cambia el directorio al que se resuelve /proc/self/root."}], "lastModified": "2026-10-25T23:10:00.167", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AB7EA00C-FD1D-4028-8DFF-4287D5CA721F", "versionEndIncluding": "1.3.9b"}, {"criteria": "cpe:2.3:a:proftpd:proftpd:1.3.10:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9C535015-D609-494D-B6BE-AFDDF6D6F1DF"}, {"criteria": "cpe:2.3:a:proftpd:proftpd:1.3.10:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D5311C32-9A31-423F-8A97-5EE4CB564EF9"}], "operator": "OR"}]}], "sourceIdentifier": "disclosure@vulncheck.com"}