{"api_version":"1","generated_at":"2026-07-24T01:58:30+00:00","cve":"CVE-2021-38162","urls":{"html":"https://cve.report/CVE-2021-38162","api":"https://cve.report/api/cve/CVE-2021-38162.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-38162","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-38162"},"summary":{"title":"CVE-2021-38162","description":"SAP Web Dispatcher versions - 7.49, 7.53, 7.77, 7.81, KRNL64NUC - 7.22, 7.22EXT, 7.49, KRNL64UC -7.22, 7.22EXT, 7.49, 7.53, KERNEL - 7.22, 7.49, 7.53, 7.77, 7.81, 7.83 processes allow an unauthenticated attacker to submit a malicious crafted request over a network to a front-end server which may, over several attempts, result in a back-end server confusing the boundaries of malicious and legitimate messages. This can result in the back-end server executing a malicious payload which can be used to read or modify any information on the server or consume server resources making it temporarily unavailable.","state":"PUBLIC","assigner":"cna@sap.com","published_at":"2021-09-14 12:15:00","updated_at":"2023-07-10 18:15:00"},"problem_types":["CWE-444"],"metrics":[],"references":[{"url":"http://seclists.org/fulldisclosure/2022/May/3","name":"20220504 Onapsis Security Advisory 2022-0001: HTTP Request Smuggling in SAP Web Dispatcher","refsource":"FULLDISC","tags":[],"title":"Full Disclosure: Onapsis Security Advisory 2022-0001: HTTP Request Smuggling in SAP Web Dispatcher","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405","name":"https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405","refsource":"MISC","tags":[],"title":"SAP Security Patch Day – September 2021 - Product Security Response at SAP - Community Wiki","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://launchpad.support.sap.com/#/notes/3080567","name":"https://launchpad.support.sap.com/#/notes/3080567","refsource":"MISC","tags":[],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://packetstormsecurity.com/files/166964/SAP-Web-Dispatcher-HTTP-Request-Smuggling.html","name":"http://packetstormsecurity.com/files/166964/SAP-Web-Dispatcher-HTTP-Request-Smuggling.html","refsource":"MISC","tags":[],"title":"SAP Web Dispatcher HTTP Request Smuggling ≈ Packet Storm","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-38162","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38162","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"38162","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"sap","cpe5":"web_dispatcher","cpe6":"7.22ext","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38162","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"sap","cpe5":"web_dispatcher","cpe6":"7.49","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38162","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"sap","cpe5":"web_dispatcher","cpe6":"7.53","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38162","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"sap","cpe5":"web_dispatcher","cpe6":"7.77","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38162","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"sap","cpe5":"web_dispatcher","cpe6":"7.81","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38162","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"sap","cpe5":"web_dispatcher","cpe6":"7.83","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38162","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"sap","cpe5":"web_dispatcher","cpe6":"kernel_7.22","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38162","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"sap","cpe5":"web_dispatcher","cpe6":"krnl64nuc_7.22","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"38162","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"sap","cpe5":"web_dispatcher","cpe6":"krnl64uc_7.22","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2021-38162","ASSIGNER":"cna@sap.com","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"SAP Web Dispatcher versions - 7.49, 7.53, 7.77, 7.81, KRNL64NUC - 7.22, 7.22EXT, 7.49, KRNL64UC -7.22, 7.22EXT, 7.49, 7.53, KERNEL - 7.22, 7.49, 7.53, 7.77, 7.81, 7.83 processes allow an unauthenticated attacker to submit a malicious crafted request over a network to a front-end server which may, over several attempts, result in a back-end server confusing the boundaries of malicious and legitimate messages. This can result in the back-end server executing a malicious payload which can be used to read or modify any information on the server or consume server resources making it temporarily unavailable.\n\n"}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-444","cweId":"CWE-444"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"SAP SE","product":{"product_data":[{"product_name":"SAP Web Dispatcher","version":{"version_data":[{"version_affected":"=","version_value":"WEBDISP - 7.49"},{"version_affected":"=","version_value":"7.53"},{"version_affected":"=","version_value":"7.77"},{"version_affected":"=","version_value":"7.81"},{"version_affected":"=","version_value":"KRNL64NUC - 7.22"},{"version_affected":"=","version_value":"7.22EXT"},{"version_affected":"=","version_value":"7.49"},{"version_affected":"=","version_value":"KRNL64UC -7.22"},{"version_affected":"=","version_value":"KERNEL - 7.22"},{"version_affected":"=","version_value":"7.83"}]}}]}}]}},"references":{"reference_data":[{"url":"https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405","refsource":"MISC","name":"https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405"},{"url":"https://launchpad.support.sap.com/#/notes/3080567","refsource":"MISC","name":"https://launchpad.support.sap.com/#/notes/3080567"},{"url":"http://seclists.org/fulldisclosure/2022/May/3","refsource":"MISC","name":"http://seclists.org/fulldisclosure/2022/May/3"},{"url":"http://packetstormsecurity.com/files/166964/SAP-Web-Dispatcher-HTTP-Request-Smuggling.html","refsource":"MISC","name":"http://packetstormsecurity.com/files/166964/SAP-Web-Dispatcher-HTTP-Request-Smuggling.html"}]},"generator":{"engine":"Vulnogram 0.1.0-dev"},"source":{"discovery":"UNKNOWN"},"impact":{"cvss":[{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.9,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L","version":"3.1"}]}},"nvd":{"publishedDate":"2021-09-14 12:15:00","lastModifiedDate":"2023-07-10 18:15:00","problem_types":["CWE-444"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"LOW","baseScore":9.4,"baseSeverity":"CRITICAL"},"exploitabilityScore":3.9,"impactScore":5.5},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":7.5},"severity":"HIGH","exploitabilityScore":10,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:sap:web_dispatcher:7.53:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:sap:web_dispatcher:7.77:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:sap:web_dispatcher:7.81:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:sap:web_dispatcher:krnl64nuc_7.22:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:sap:web_dispatcher:7.22ext:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:sap:web_dispatcher:krnl64uc_7.22:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:sap:web_dispatcher:kernel_7.22:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:sap:web_dispatcher:7.83:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:sap:web_dispatcher:7.49:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"38162","Ordinal":"213773","Title":"CVE-2021-38162","CVE":"CVE-2021-38162","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"38162","Ordinal":"1","NoteData":"SAP Web Dispatcher versions - 7.49, 7.53, 7.77, 7.81, KRNL64NUC - 7.22, 7.22EXT, 7.49, KRNL64UC -7.22, 7.22EXT, 7.49, 7.53, KERNEL - 7.22, 7.49, 7.53, 7.77, 7.81, 7.83 processes allow an unauthenticated attacker to submit a malicious crafted request over a network to a front-end server which may, over several attempts, result in a back-end server confusing the boundaries of malicious and legitimate messages. This can result in the back-end server executing a malicious payload which can be used to read or modify any information on the server or consume server resources making it temporarily unavailable.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"38162","Ordinal":"2","NoteData":"2021-09-14","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"38162","Ordinal":"3","NoteData":"2021-09-14","Type":"Other","Title":"Modified"}]}}}