GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

VAR-202104-0769

Vulnerability from variot - Updated: 2024-11-23 21:19

The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 do not properly sanitize user input. An authenticated remote attacker could leverage this vulnerability to alter device configuration, potentially gaining remote code execution. Buffalo WSR-2533DHPL2 firmware and WSR-2533DHP3 There is an unspecified vulnerability in the firmware.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state. Buffalo WSR-2533DHPL2 and WSR-2533DHP3 are routers of Japan Buffalo Company.

Buffalo WSR-2533DHPL2 and WSR-2533DHP3 have a code injection vulnerability. Attackers can use this vulnerability to execute code remotely. Pillow is a Python-based image processing library. There is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements

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-202104-0769",
  "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": "wsr-2533dhp3-bk",
        "scope": "lte",
        "trust": 1.0,
        "vendor": "buffalo",
        "version": "1.24"
      },
      {
        "model": "wsr-2533dhpl2-bk",
        "scope": "lte",
        "trust": 1.0,
        "vendor": "buffalo",
        "version": "1.02"
      },
      {
        "model": "wsr-2533dhp3",
        "scope": null,
        "trust": 0.8,
        "vendor": "\u30d0\u30c3\u30d5\u30a1\u30ed\u30fc",
        "version": null
      },
      {
        "model": "wsr-2533dhpl2",
        "scope": null,
        "trust": 0.8,
        "vendor": "\u30d0\u30c3\u30d5\u30a1\u30ed\u30fc",
        "version": null
      },
      {
        "model": "wsr-2533dhpl2",
        "scope": "lte",
        "trust": 0.6,
        "vendor": "buffalo",
        "version": "\u003c=1.02"
      },
      {
        "model": "wsr-2533dhp3",
        "scope": "lte",
        "trust": 0.6,
        "vendor": "buffalo",
        "version": "\u003c=1.24"
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2021-56800"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-005999"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-20091"
      }
    ]
  },
  "cve": "CVE-2021-20091",
  "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": "SINGLE",
            "author": "nvd@nist.gov",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.5,
            "confidentialityImpact": "PARTIAL",
            "exploitabilityScore": 8.0,
            "id": "CVE-2021-20091",
            "impactScore": 6.4,
            "integrityImpact": "PARTIAL",
            "severity": "MEDIUM",
            "trust": 1.9,
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
            "version": "2.0"
          },
          {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "author": "CNVD",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.5,
            "confidentialityImpact": "PARTIAL",
            "exploitabilityScore": 8.0,
            "id": "CNVD-2021-56800",
            "impactScore": 6.4,
            "integrityImpact": "PARTIAL",
            "severity": "MEDIUM",
            "trust": 0.6,
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
            "version": "2.0"
          }
        ],
        "cvssV3": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "author": "nvd@nist.gov",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "exploitabilityScore": 2.8,
            "id": "CVE-2021-20091",
            "impactScore": 5.9,
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "trust": 1.0,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          {
            "attackComplexity": "Low",
            "attackVector": "Network",
            "author": "NVD",
            "availabilityImpact": "High",
            "baseScore": 8.8,
            "baseSeverity": "High",
            "confidentialityImpact": "High",
            "exploitabilityScore": null,
            "id": "CVE-2021-20091",
            "impactScore": null,
            "integrityImpact": "High",
            "privilegesRequired": "Low",
            "scope": "Unchanged",
            "trust": 0.8,
            "userInteraction": "None",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
        ],
        "severity": [
          {
            "author": "nvd@nist.gov",
            "id": "CVE-2021-20091",
            "trust": 1.0,
            "value": "HIGH"
          },
          {
            "author": "NVD",
            "id": "CVE-2021-20091",
            "trust": 0.8,
            "value": "High"
          },
          {
            "author": "CNVD",
            "id": "CNVD-2021-56800",
            "trust": 0.6,
            "value": "MEDIUM"
          },
          {
            "author": "CNNVD",
            "id": "CNNVD-202104-975",
            "trust": 0.6,
            "value": "MEDIUM"
          },
          {
            "author": "CNNVD",
            "id": "CNNVD-202104-2005",
            "trust": 0.6,
            "value": "HIGH"
          },
          {
            "author": "VULMON",
            "id": "CVE-2021-20091",
            "trust": 0.1,
            "value": "MEDIUM"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2021-56800"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-20091"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-005999"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-975"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2005"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-20091"
      }
    ]
  },
  "description": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/description#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "The web interfaces of Buffalo WSR-2533DHPL2 firmware version \u003c= 1.02 and WSR-2533DHP3 firmware version \u003c= 1.24 do not properly sanitize user input. An authenticated remote attacker could leverage this vulnerability to alter device configuration, potentially gaining remote code execution. Buffalo WSR-2533DHPL2 firmware and WSR-2533DHP3 There is an unspecified vulnerability in the firmware.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state. Buffalo WSR-2533DHPL2 and WSR-2533DHP3 are routers of Japan Buffalo Company. \n\r\n\r\nBuffalo WSR-2533DHPL2 and WSR-2533DHP3 have a code injection vulnerability. Attackers can use this vulnerability to execute code remotely. Pillow is a Python-based image processing library. \nThere is currently no information about this vulnerability, please feel free to follow CNNVD or manufacturer announcements",
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2021-20091"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-005999"
      },
      {
        "db": "CNVD",
        "id": "CNVD-2021-56800"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-975"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-20091"
      }
    ],
    "trust": 2.79
  },
  "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-2021-20091",
        "trust": 3.9
      },
      {
        "db": "TENABLE",
        "id": "TRA-2021-13",
        "trust": 2.5
      },
      {
        "db": "CS-HELP",
        "id": "SB2021042705",
        "trust": 1.2
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-005999",
        "trust": 0.8
      },
      {
        "db": "CNVD",
        "id": "CNVD-2021-56800",
        "trust": 0.6
      },
      {
        "db": "CS-HELP",
        "id": "SB2021041363",
        "trust": 0.6
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-975",
        "trust": 0.6
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2005",
        "trust": 0.6
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-20091",
        "trust": 0.1
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2021-56800"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-20091"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-005999"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-975"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2005"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-20091"
      }
    ]
  },
  "id": "VAR-202104-0769",
  "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-2021-56800"
      }
    ],
    "trust": 1.4
  },
  "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-2021-56800"
      }
    ]
  },
  "last_update_date": "2024-11-23T21:19:05.341000Z",
  "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": "top page",
        "trust": 0.8,
        "url": "https://www.buffalo.jp/"
      },
      {
        "title": "Patch for Buffalo WSR-2533DHPL2 and WSR-2533DHP3 code injection vulnerabilities",
        "trust": 0.6,
        "url": "https://www.cnvd.org.cn/patchInfo/show/283456"
      },
      {
        "title": "Buffalo WSR-2533DHPL2 Fixes for code injection vulnerabilities",
        "trust": 0.6,
        "url": "http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=149357"
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2021-56800"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-005999"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2005"
      }
    ]
  },
  "problemtype_data": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "problemtype": "NVD-CWE-noinfo",
        "trust": 1.0
      },
      {
        "problemtype": "Lack of information (CWE-noinfo) [NVD Evaluation ]",
        "trust": 0.8
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-005999"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-20091"
      }
    ]
  },
  "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://www.tenable.com/security/research/tra-2021-13"
      },
      {
        "trust": 1.4,
        "url": "https://nvd.nist.gov/vuln/detail/cve-2021-20091"
      },
      {
        "trust": 1.2,
        "url": "https://www.cybersecurity-help.cz/vdb/sb2021042705"
      },
      {
        "trust": 0.6,
        "url": "https://www.cybersecurity-help.cz/vdb/sb2021041363"
      },
      {
        "trust": 0.1,
        "url": "https://cwe.mitre.org/data/definitions/.html"
      },
      {
        "trust": 0.1,
        "url": "https://nvd.nist.gov"
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2021-56800"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-20091"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-005999"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-975"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2005"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-20091"
      }
    ]
  },
  "sources": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "db": "CNVD",
        "id": "CNVD-2021-56800"
      },
      {
        "db": "VULMON",
        "id": "CVE-2021-20091"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-005999"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-975"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-2005"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-20091"
      }
    ]
  },
  "sources_release_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2021-07-30T00:00:00",
        "db": "CNVD",
        "id": "CNVD-2021-56800"
      },
      {
        "date": "2021-04-29T00:00:00",
        "db": "VULMON",
        "id": "CVE-2021-20091"
      },
      {
        "date": "2021-12-23T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2021-005999"
      },
      {
        "date": "2021-04-13T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202104-975"
      },
      {
        "date": "2021-04-27T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202104-2005"
      },
      {
        "date": "2021-04-29T15:15:10.660000",
        "db": "NVD",
        "id": "CVE-2021-20091"
      }
    ]
  },
  "sources_update_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2021-07-30T00:00:00",
        "db": "CNVD",
        "id": "CNVD-2021-56800"
      },
      {
        "date": "2021-05-05T00:00:00",
        "db": "VULMON",
        "id": "CVE-2021-20091"
      },
      {
        "date": "2021-12-23T09:15:00",
        "db": "JVNDB",
        "id": "JVNDB-2021-005999"
      },
      {
        "date": "2021-04-14T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202104-975"
      },
      {
        "date": "2021-05-07T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202104-2005"
      },
      {
        "date": "2024-11-21T05:45:54.603000",
        "db": "NVD",
        "id": "CVE-2021-20091"
      }
    ]
  },
  "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-202104-2005"
      }
    ],
    "trust": 0.6
  },
  "title": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/title#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Buffalo\u00a0WSR-2533DHPL2\u00a0 firmware \u00a0 and \u00a0WSR-2533DHP3\u00a0 Firmware vulnerability",
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-005999"
      }
    ],
    "trust": 0.8
  },
  "type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "other",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202104-975"
      }
    ],
    "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…

Detection rules are retrieved from Rulezet.

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…