VAR-202108-1039

Vulnerability from variot - Updated: 2024-08-14 14:50

Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_config function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the content in upload_file variable is NULL in the upload_config function then the strncasecmp would take NULL as first argument, and incur the NULL pointer dereference vulnerability. plural D-Link DAP The product has NULL There is a vulnerability in pointer dereference.Service operation interruption (DoS) It may be put into a state. D-Link DAP-2310 is a single-band wireless network access point, suitable for small businesses or schools that require fast and reliable wireless networks. DAP-2330 is a wireless N300 single-band PoE access point. Attackers can use vulnerabilities to cause the program to crash

Show details on source website

{
  "@context": {
    "@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
    "affected_products": {
      "@id": "https://www.variotdbs.pl/ref/affected_products"
    },
    "configurations": {
      "@id": "https://www.variotdbs.pl/ref/configurations"
    },
    "credits": {
      "@id": "https://www.variotdbs.pl/ref/credits"
    },
    "cvss": {
      "@id": "https://www.variotdbs.pl/ref/cvss/"
    },
    "description": {
      "@id": "https://www.variotdbs.pl/ref/description/"
    },
    "exploit_availability": {
      "@id": "https://www.variotdbs.pl/ref/exploit_availability/"
    },
    "external_ids": {
      "@id": "https://www.variotdbs.pl/ref/external_ids/"
    },
    "iot": {
      "@id": "https://www.variotdbs.pl/ref/iot/"
    },
    "iot_taxonomy": {
      "@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
    },
    "patch": {
      "@id": "https://www.variotdbs.pl/ref/patch/"
    },
    "problemtype_data": {
      "@id": "https://www.variotdbs.pl/ref/problemtype_data/"
    },
    "references": {
      "@id": "https://www.variotdbs.pl/ref/references/"
    },
    "sources": {
      "@id": "https://www.variotdbs.pl/ref/sources/"
    },
    "sources_release_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_release_date/"
    },
    "sources_update_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_update_date/"
    },
    "threat_type": {
      "@id": "https://www.variotdbs.pl/ref/threat_type/"
    },
    "title": {
      "@id": "https://www.variotdbs.pl/ref/title/"
    },
    "type": {
      "@id": "https://www.variotdbs.pl/ref/type/"
    }
  },
  "@id": "https://www.variotdbs.pl/vuln/VAR-202108-1039",
  "affected_products": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/affected_products#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "model": "dap-2360",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "dlink",
        "version": "2.07.rc043"
      },
      {
        "model": "dap-2690",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "dlink",
        "version": "3.16.rc100"
      },
      {
        "model": "dap-2553",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "dlink",
        "version": "3.06.rc027"
      },
      {
        "model": "dap-2330",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "dlink",
        "version": "1.07.rc028"
      },
      {
        "model": "dap-2310",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "dlink",
        "version": "2.0.7.rc031"
      },
      {
        "model": "dap-3320",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "dlink",
        "version": "1.01.rc014"
      },
      {
        "model": "dap-2660",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "dlink",
        "version": "1.13.rc074"
      },
      {
        "model": "dap-3662",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "dlink",
        "version": "1.01.rc022"
      },
      {
        "model": "dap-2695",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "dlink",
        "version": "1.17.rc063"
      },
      {
        "model": "dap-2330",
        "scope": null,
        "trust": 0.8,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-2360",
        "scope": null,
        "trust": 0.8,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-3320",
        "scope": null,
        "trust": 0.8,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-2690",
        "scope": null,
        "trust": 0.8,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-3662",
        "scope": null,
        "trust": 0.8,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-2695",
        "scope": null,
        "trust": 0.8,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-2310",
        "scope": null,
        "trust": 0.8,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-2553",
        "scope": null,
        "trust": 0.8,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-2660",
        "scope": null,
        "trust": 0.8,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-2310 2.07.rc031",
        "scope": null,
        "trust": 0.6,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-2330 1.07.rc028",
        "scope": null,
        "trust": 0.6,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-2360 2.07.rc043",
        "scope": null,
        "trust": 0.6,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-2553 3.06.rc027",
        "scope": null,
        "trust": 0.6,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-2660 rap-1.76.rc031",
        "scope": null,
        "trust": 0.6,
        "vendor": "d link",
        "version": null
      },
      {
        "model": "dap-2660 rcap-1.46.103.13",
        "scope": null,
        "trust": 0.6,
        "vendor": "d link",
        "version": null
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2021-94842"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-010919"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-28840"
      }
    ]
  },
  "cve": "CVE-2021-28840",
  "cvss": {
    "@context": {
      "cvssV2": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
      },
      "cvssV3": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
      },
      "severity": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/cvss/severity#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/severity"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "cvssV2": [
          {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "author": "nvd@nist.gov",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "exploitabilityScore": 10.0,
            "id": "CVE-2021-28840",
            "impactScore": 2.9,
            "integrityImpact": "NONE",
            "severity": "MEDIUM",
            "trust": 1.9,
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "author": "CNVD",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "exploitabilityScore": 10.0,
            "id": "CNVD-2021-94842",
            "impactScore": 2.9,
            "integrityImpact": "NONE",
            "severity": "MEDIUM",
            "trust": 0.6,
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          }
        ],
        "cvssV3": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "author": "nvd@nist.gov",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "exploitabilityScore": 3.9,
            "id": "CVE-2021-28840",
            "impactScore": 3.6,
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "trust": 1.0,
            "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"
          },
          {
            "attackComplexity": "Low",
            "attackVector": "Network",
            "author": "NVD",
            "availabilityImpact": "High",
            "baseScore": 7.5,
            "baseSeverity": "High",
            "confidentialityImpact": "None",
            "exploitabilityScore": null,
            "id": "CVE-2021-28840",
            "impactScore": null,
            "integrityImpact": "None",
            "privilegesRequired": "None",
            "scope": "Unchanged",
            "trust": 0.8,
            "userInteraction": "None",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          }
        ],
        "severity": [
          {
            "author": "nvd@nist.gov",
            "id": "CVE-2021-28840",
            "trust": 1.0,
            "value": "HIGH"
          },
          {
            "author": "NVD",
            "id": "CVE-2021-28840",
            "trust": 0.8,
            "value": "High"
          },
          {
            "author": "CNVD",
            "id": "CNVD-2021-94842",
            "trust": 0.6,
            "value": "MEDIUM"
          },
          {
            "author": "CNNVD",
            "id": "CNNVD-202108-999",
            "trust": 0.6,
            "value": "HIGH"
          },
          {
            "author": "VULMON",
            "id": "CVE-2021-28840",
            "trust": 0.1,
            "value": "MEDIUM"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2021-94842"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-28840"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-010919"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202108-999"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-28840"
      }
    ]
  },
  "description": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/description#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_config function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the content in upload_file variable is NULL in the upload_config function then the strncasecmp would take NULL as first argument, and incur the NULL pointer dereference vulnerability. plural D-Link DAP The product has NULL There is a vulnerability in pointer dereference.Service operation interruption (DoS) It may be put into a state. D-Link DAP-2310 is a single-band wireless network access point, suitable for small businesses or schools that require fast and reliable wireless networks. DAP-2330 is a wireless N300 single-band PoE access point. Attackers can use vulnerabilities to cause the program to crash",
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2021-28840"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-010919"
      },
      {
        "db": "CNVD",
        "id": "CNVD-2021-94842"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-28840"
      }
    ],
    "trust": 2.25
  },
  "external_ids": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/external_ids#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "db": "NVD",
        "id": "CVE-2021-28840",
        "trust": 3.9
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-010919",
        "trust": 0.8
      },
      {
        "db": "CNVD",
        "id": "CNVD-2021-94842",
        "trust": 0.6
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202108-999",
        "trust": 0.6
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-28840",
        "trust": 0.1
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2021-94842"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-28840"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-010919"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202108-999"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-28840"
      }
    ]
  },
  "id": "VAR-202108-1039",
  "iot": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/iot#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": true,
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2021-94842"
      }
    ],
    "trust": 1.123860036
  },
  "iot_taxonomy": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/iot_taxonomy#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "category": [
          "Network device"
        ],
        "sub_category": null,
        "trust": 0.6
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2021-94842"
      }
    ]
  },
  "last_update_date": "2024-08-14T14:50:12.307000Z",
  "patch": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/patch#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "title": "Security\u00a0Bulletin",
        "trust": 0.8,
        "url": "https://www.dlink.com/en/security-bulletin"
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-010919"
      }
    ]
  },
  "problemtype_data": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "problemtype": "CWE-476",
        "trust": 1.0
      },
      {
        "problemtype": "NULL Pointer dereference (CWE-476) [NVD evaluation ]",
        "trust": 0.8
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-010919"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-28840"
      }
    ]
  },
  "references": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/references#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "trust": 2.5,
        "url": "https://github.com/zyw-200/equafl/blob/main/dlink-email-cve.pdf"
      },
      {
        "trust": 2.0,
        "url": "https://nvd.nist.gov/vuln/detail/cve-2021-28840"
      },
      {
        "trust": 1.7,
        "url": "https://www.dlink.com/en/security-bulletin/"
      },
      {
        "trust": 1.7,
        "url": "https://github.com/zyw-200/equafl/blob/main/dlink-email-cve2.pdf"
      },
      {
        "trust": 0.1,
        "url": "https://cwe.mitre.org/data/definitions/476.html"
      },
      {
        "trust": 0.1,
        "url": "https://nvd.nist.gov"
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2021-94842"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-28840"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-010919"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202108-999"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-28840"
      }
    ]
  },
  "sources": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "db": "CNVD",
        "id": "CNVD-2021-94842"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-28840"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-010919"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202108-999"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-28840"
      }
    ]
  },
  "sources_release_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2021-12-07T00:00:00",
        "db": "CNVD",
        "id": "CNVD-2021-94842"
      },
      {
        "date": "2021-08-10T00:00:00",
        "db": "VULMON",
        "id": "CVE-2021-28840"
      },
      {
        "date": "2022-07-12T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2021-010919"
      },
      {
        "date": "2021-08-10T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202108-999"
      },
      {
        "date": "2021-08-10T18:15:07.220000",
        "db": "NVD",
        "id": "CVE-2021-28840"
      }
    ]
  },
  "sources_update_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2021-12-07T00:00:00",
        "db": "CNVD",
        "id": "CNVD-2021-94842"
      },
      {
        "date": "2021-08-17T00:00:00",
        "db": "VULMON",
        "id": "CVE-2021-28840"
      },
      {
        "date": "2022-07-12T03:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2021-010919"
      },
      {
        "date": "2021-08-24T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202108-999"
      },
      {
        "date": "2021-08-17T15:01:09.087000",
        "db": "NVD",
        "id": "CVE-2021-28840"
      }
    ]
  },
  "threat_type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/threat_type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "remote",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202108-999"
      }
    ],
    "trust": 0.6
  },
  "title": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/title#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "plural \u00a0D-Link\u00a0DAP\u00a0 In the product \u00a0NULL\u00a0 Pointer dereference vulnerability",
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-010919"
      }
    ],
    "trust": 0.8
  },
  "type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "code problem",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202108-999"
      }
    ],
    "trust": 0.6
  }
}



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…

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…