CVE-2021-33822

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered on 4GEE ROUTER HH70VB Version HH70_E1_02.00_22. Attackers can use slowhttptest tool to send incomplete HTTP request, which could make server keep waiting for the packet to finish the connection, until its resource exhausted. Then the web server is denial-of-service."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-06-18T18:47:47.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/shekyan/slowhttptest"}, {"tags": ["x_refsource_MISC"], "url": "https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-33822", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An issue was discovered on 4GEE ROUTER HH70VB Version HH70_E1_02.00_22. Attackers can use slowhttptest tool to send incomplete HTTP request, which could make server keep waiting for the packet to finish the connection, until its resource exhausted. Then the web server is denial-of-service."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/shekyan/slowhttptest", "refsource": "MISC", "url": "https://github.com/shekyan/slowhttptest"}, {"name": "https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi", "refsource": "MISC", "url": "https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi"}, {"name": "https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md", "refsource": "MISC", "url": "https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:58:23.111Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/shekyan/slowhttptest"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-33822", "datePublished": "2021-06-18T18:47:47.000Z", "dateReserved": "2021-06-03T00:00:00.000Z", "dateUpdated": "2024-08-03T23:58:23.111Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:sing4g:4gee_router_hh70vb_firmware:hh70_e1_02.00_22:*:*:*:*:*:*:*", "matchCriteriaId": "3A2D44AF-D6ED-4DB0-9FF7-75E6B77F6D6E", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:sing4g:4gee_router_hh70vb:-:*:*:*:*:*:*:*", "matchCriteriaId": "9099C837-6898-478E-9BE7-8F639E140BD3", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered on 4GEE ROUTER HH70VB Version HH70_E1_02.00_22. Attackers can use slowhttptest tool to send incomplete HTTP request, which could make server keep waiting for the packet to finish the connection, until its resource exhausted. Then the web server is denial-of-service."}, {"lang": "es", "value": "Se ha detectado un problema en 4GEE ROUTER HH70VB versi\u00f3n HH70_E1_02.00_22. Unos atacantes pueden usar la herramienta slowhttptest para enviar peticiones HTTP incompletas, lo que podr\u00eda hacer que el servidor siga esperando por el paquete para terminar la conexi\u00f3n, hasta que sean agotados sus recursos. Entonces el servidor web sufre una denegaci\u00f3n de servicio"}], "id": "CVE-2021-33822", "lastModified": "2026-06-17T03:55:16.343", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-06-18T19:15:07.570", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://github.com/shekyan/slowhttptest"}, {"source": "cve@mitre.org", "tags": ["Product", "Vendor Advisory"], "url": "https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/shekyan/slowhttptest"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product", "Vendor Advisory"], "url": "https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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