CVE-2021-33822 (GCVE-0-2021-33822)

Vulnerability from cvelistv5 – Published: 2021-06-18 18:47 – Updated: 2024-08-03 23:58
VLAI
Summary
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.
CWE
  • n/a
Assigner
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:58:23.111Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "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"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "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"
            }
          ]
        }
      }
    }
  },
  "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",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-33822",
      "date": "2026-07-15",
      "epss": "0.01934",
      "percentile": "0.77746"
    },
    "fkie_nvd": {
      "configurations": "[{\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:sing4g:4gee_router_hh70vb_firmware:hh70_e1_02.00_22:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"3A2D44AF-D6ED-4DB0-9FF7-75E6B77F6D6E\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:sing4g:4gee_router_hh70vb:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"9099C837-6898-478E-9BE7-8F639E140BD3\"}]}]}]",
      "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": "2024-11-21T06:09:37.913",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:N/A:P\", \"baseScore\": 5.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 10.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2021-06-18T19:15:07.570",
      "references": "[{\"url\": \"https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/shekyan/slowhttptest\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi\", \"source\": \"cve@mitre.org\", \"tags\": [\"Product\", \"Vendor Advisory\"]}, {\"url\": \"https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/shekyan/slowhttptest\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Product\", \"Vendor Advisory\"]}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-400\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-33822\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2021-06-18T19:15:07.570\",\"lastModified\":\"2024-11-21T06:09:37.913\",\"vulnStatus\":\"Modified\",\"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\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:sing4g:4gee_router_hh70vb_firmware:hh70_e1_02.00_22:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3A2D44AF-D6ED-4DB0-9FF7-75E6B77F6D6E\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:sing4g:4gee_router_hh70vb:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9099C837-6898-478E-9BE7-8F639E140BD3\"}]}]}],\"references\":[{\"url\":\"https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/shekyan/slowhttptest\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi\",\"source\":\"cve@mitre.org\",\"tags\":[\"Product\",\"Vendor Advisory\"]},{\"url\":\"https://github.com/Jian-Xian/CVE-POC/blob/master/CVE-2021-33822.md\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/shekyan/slowhttptest\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.sing4g.com/product-page/4gee-router-hh70vb-4g-300mbps-2lan-32wifi\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Product\",\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2026-03-27T13:57:48+00:00",
      "cve": "CVE-2021-33822",
      "id": "CVE-2021-33822",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2021-33822",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-33822.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…