CVE-2021-35247

{"id": "CVE-2021-35247", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@solarwinds.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "published": "2022-01-10T14:10:17.667", "references": [{"url": "https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3_release_notes.htm", "tags": ["Release Notes", "Vendor Advisory"], "source": "psirt@solarwinds.com"}, {"url": "https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35247", "tags": ["Broken Link", "Vendor Advisory"], "source": "psirt@solarwinds.com"}, {"url": "https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-3_release_notes.htm", "tags": ["Release Notes", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35247", "tags": ["Broken Link", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-35247", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "psirt@solarwinds.com", "description": [{"lang": "en", "value": "CWE-20"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "Serv-U web login screen to LDAP authentication was allowing characters that were not sufficiently sanitized. SolarWinds has updated the input mechanism to perform additional validation and sanitization. Please Note: No downstream affect has been detected as the LDAP servers ignored improper characters. To insure proper input validation is completed in all environments. SolarWinds recommends scheduling an update to the latest version of Serv-U."}, {"lang": "es", "value": "La pantalla de inicio de sesi\u00f3n web de Serv-U para la autenticaci\u00f3n LDAP permit\u00eda caracteres que no estaban suficientemente desinfectados. SolarWinds ha actualizado el mecanismo de entrada para realizar una validaci\u00f3n y sanitizaci\u00f3n adicionales. Nota: No se ha detectado ninguna afectaci\u00f3n posterior, ya que los servidores LDAP ignoraban los caracteres inadecuados. Para asegurar que la validaci\u00f3n de la entrada se completa en todos los entornos. SolarWinds recomienda programar una actualizaci\u00f3n a la \u00faltima versi\u00f3n de Serv-U"}], "lastModified": "2025-10-22T00:17:38.717", "cisaActionDue": "2022-02-04", "cisaExploitAdd": "2022-01-21", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DB4EF8F3-F239-464D-B0AA-3119A5CCF12E", "versionEndExcluding": "15.3"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@solarwinds.com", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "SolarWinds Serv-U Improper Input Validation Vulnerability"}