VAR-201909-1387

Vulnerability from variot - Updated: 2023-12-18 13:28

An issue was discovered in ASUSWRT 3.0.0.4.384.20308. There is a stack-based buffer overflow issue in parse_req_queries function in wanduck.c via a long string over UDP, which may lead to an information leak. ASUSWRT Contains a classic buffer overflow vulnerability.Information may be obtained. ASUS Asuswrt-Merlin is a firmware that runs in its router from Taiwan's ASUS Corporation (ASUS).

ASUS Asuswrt-Merlin 3.0.0.4.384.20308 version of the wanduck.c file ‘parse_req_queries’ function has a buffer overflow vulnerability. The vulnerability stems from the fact that when a network system or product performs an operation on memory, the data boundary is not correctly verified, resulting in an incorrect read and write operation to other associated memory locations. Attackers can use this vulnerability to cause buffer overflow or heap overflow

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-201909-1387",
  "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": "asuswrt-merlin",
        "scope": "eq",
        "trust": 2.2,
        "vendor": "asus",
        "version": "3.0.0.4.384.20308"
      },
      {
        "model": "asuswrt-merlin",
        "scope": "eq",
        "trust": 0.8,
        "vendor": "asuswrt merlin",
        "version": "3.0.0.4.384.20308"
      },
      {
        "model": "rt-ac68u",
        "scope": "eq",
        "trust": 0.6,
        "vendor": "asus",
        "version": null
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-19212"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2018-016073"
      },
      {
        "db": "NVD",
        "id": "CVE-2018-20336"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-201909-804"
      }
    ]
  },
  "configurations": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/configurations#",
      "children": {
        "@container": "@list"
      },
      "cpe_match": {
        "@container": "@list"
      },
      "data": {
        "@container": "@list"
      },
      "nodes": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [
              {
                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:o:asus:asuswrt-merlin:3.0.0.4.384.20308:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": true
                  }
                ],
                "operator": "OR"
              },
              {
                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:h:asus:rt-ac68u:-:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": false
                  }
                ],
                "operator": "OR"
              }
            ],
            "cpe_match": [],
            "operator": "AND"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2018-20336"
      }
    ]
  },
  "cve": "CVE-2018-20336",
  "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": [
          {
            "acInsufInfo": false,
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "author": "NVD",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "PARTIAL",
            "exploitabilityScore": 10.0,
            "impactScore": 2.9,
            "integrityImpact": "NONE",
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "severity": "MEDIUM",
            "trust": 1.0,
            "userInteractionRequired": false,
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          {
            "acInsufInfo": null,
            "accessComplexity": "Low",
            "accessVector": "Network",
            "authentication": "None",
            "author": "NVD",
            "availabilityImpact": "None",
            "baseScore": 5.0,
            "confidentialityImpact": "Partial",
            "exploitabilityScore": null,
            "id": "CVE-2018-20336",
            "impactScore": null,
            "integrityImpact": "None",
            "obtainAllPrivilege": null,
            "obtainOtherPrivilege": null,
            "obtainUserPrivilege": null,
            "severity": "Medium",
            "trust": 0.9,
            "userInteractionRequired": null,
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "author": "CNVD",
            "availabilityImpact": "COMPLETE",
            "baseScore": 7.8,
            "confidentialityImpact": "NONE",
            "exploitabilityScore": 10.0,
            "id": "CNVD-2020-19212",
            "impactScore": 6.9,
            "integrityImpact": "NONE",
            "severity": "HIGH",
            "trust": 0.6,
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
            "version": "2.0"
          },
          {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "author": "VULHUB",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "PARTIAL",
            "exploitabilityScore": 10.0,
            "id": "VHN-131132",
            "impactScore": 2.9,
            "integrityImpact": "NONE",
            "severity": "MEDIUM",
            "trust": 0.1,
            "vectorString": "AV:N/AC:L/AU:N/C:P/I:N/A:N",
            "version": "2.0"
          }
        ],
        "cvssV3": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "author": "NVD",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "exploitabilityScore": 3.9,
            "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:H/I:N/A:N",
            "version": "3.1"
          },
          {
            "attackComplexity": "Low",
            "attackVector": "Network",
            "author": "NVD",
            "availabilityImpact": "None",
            "baseScore": 7.5,
            "baseSeverity": "High",
            "confidentialityImpact": "High",
            "exploitabilityScore": null,
            "id": "CVE-2018-20336",
            "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:H/I:N/A:N",
            "version": "3.0"
          }
        ],
        "severity": [
          {
            "author": "NVD",
            "id": "CVE-2018-20336",
            "trust": 1.8,
            "value": "HIGH"
          },
          {
            "author": "CNVD",
            "id": "CNVD-2020-19212",
            "trust": 0.6,
            "value": "HIGH"
          },
          {
            "author": "CNNVD",
            "id": "CNNVD-201909-804",
            "trust": 0.6,
            "value": "HIGH"
          },
          {
            "author": "VULHUB",
            "id": "VHN-131132",
            "trust": 0.1,
            "value": "MEDIUM"
          },
          {
            "author": "VULMON",
            "id": "CVE-2018-20336",
            "trust": 0.1,
            "value": "MEDIUM"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-19212"
      },
      {
        "db": "VULHUB",
        "id": "VHN-131132"
      },
      {
        "db": "VULMON",
        "id": "CVE-2018-20336"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2018-016073"
      },
      {
        "db": "NVD",
        "id": "CVE-2018-20336"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-201909-804"
      }
    ]
  },
  "description": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/description#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "An issue was discovered in ASUSWRT 3.0.0.4.384.20308. There is a stack-based buffer overflow issue in parse_req_queries function in wanduck.c via a long string over UDP, which may lead to an information leak. ASUSWRT Contains a classic buffer overflow vulnerability.Information may be obtained. ASUS Asuswrt-Merlin is a firmware that runs in its router from Taiwan\u0027s ASUS Corporation (ASUS). \n\r\n\r\nASUS Asuswrt-Merlin 3.0.0.4.384.20308 version of the wanduck.c file \u2018parse_req_queries\u2019 function has a buffer overflow vulnerability. The vulnerability stems from the fact that when a network system or product performs an operation on memory, the data boundary is not correctly verified, resulting in an incorrect read and write operation to other associated memory locations. Attackers can use this vulnerability to cause buffer overflow or heap overflow",
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2018-20336"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2018-016073"
      },
      {
        "db": "CNVD",
        "id": "CNVD-2020-19212"
      },
      {
        "db": "VULHUB",
        "id": "VHN-131132"
      },
      {
        "db": "VULMON",
        "id": "CVE-2018-20336"
      }
    ],
    "trust": 2.34
  },
  "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-2018-20336",
        "trust": 3.2
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2018-016073",
        "trust": 0.8
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-201909-804",
        "trust": 0.7
      },
      {
        "db": "CNVD",
        "id": "CNVD-2020-19212",
        "trust": 0.6
      },
      {
        "db": "VULHUB",
        "id": "VHN-131132",
        "trust": 0.1
      },
      {
        "db": "VULMON",
        "id": "CVE-2018-20336",
        "trust": 0.1
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-19212"
      },
      {
        "db": "VULHUB",
        "id": "VHN-131132"
      },
      {
        "db": "VULMON",
        "id": "CVE-2018-20336"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2018-016073"
      },
      {
        "db": "NVD",
        "id": "CVE-2018-20336"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-201909-804"
      }
    ]
  },
  "id": "VAR-201909-1387",
  "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-2020-19212"
      },
      {
        "db": "VULHUB",
        "id": "VHN-131132"
      }
    ],
    "trust": 1.28278895
  },
  "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-2020-19212"
      }
    ]
  },
  "last_update_date": "2023-12-18T13:28:26.761000Z",
  "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.asuswrt-merlin.net/"
      },
      {
        "title": "Patch for ASUS Asuswrt-Merlin buffer overflow vulnerability",
        "trust": 0.6,
        "url": "https://www.cnvd.org.cn/patchinfo/show/210721"
      },
      {
        "title": "ASUS Asuswrt-Merlin Security vulnerabilities",
        "trust": 0.6,
        "url": "http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=98337"
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-19212"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2018-016073"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-201909-804"
      }
    ]
  },
  "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-120",
        "trust": 1.9
      }
    ],
    "sources": [
      {
        "db": "VULHUB",
        "id": "VHN-131132"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2018-016073"
      },
      {
        "db": "NVD",
        "id": "CVE-2018-20336"
      }
    ]
  },
  "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": 3.2,
        "url": "https://www.asus.com/networking/rt-ac1200g-plus/helpdesk_bios/"
      },
      {
        "trust": 2.6,
        "url": "https://starlabs.sg/advisories/18-20336/"
      },
      {
        "trust": 1.4,
        "url": "https://nvd.nist.gov/vuln/detail/cve-2018-20336"
      },
      {
        "trust": 0.8,
        "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-20336"
      },
      {
        "trust": 0.1,
        "url": "https://cwe.mitre.org/data/definitions/120.html"
      },
      {
        "trust": 0.1,
        "url": "https://nvd.nist.gov"
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-19212"
      },
      {
        "db": "VULHUB",
        "id": "VHN-131132"
      },
      {
        "db": "VULMON",
        "id": "CVE-2018-20336"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2018-016073"
      },
      {
        "db": "NVD",
        "id": "CVE-2018-20336"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-201909-804"
      }
    ]
  },
  "sources": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "db": "CNVD",
        "id": "CNVD-2020-19212"
      },
      {
        "db": "VULHUB",
        "id": "VHN-131132"
      },
      {
        "db": "VULMON",
        "id": "CVE-2018-20336"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2018-016073"
      },
      {
        "db": "NVD",
        "id": "CVE-2018-20336"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-201909-804"
      }
    ]
  },
  "sources_release_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2020-03-25T00:00:00",
        "db": "CNVD",
        "id": "CNVD-2020-19212"
      },
      {
        "date": "2019-09-17T00:00:00",
        "db": "VULHUB",
        "id": "VHN-131132"
      },
      {
        "date": "2019-09-17T00:00:00",
        "db": "VULMON",
        "id": "CVE-2018-20336"
      },
      {
        "date": "2019-09-24T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2018-016073"
      },
      {
        "date": "2019-09-17T16:15:10.747000",
        "db": "NVD",
        "id": "CVE-2018-20336"
      },
      {
        "date": "2019-09-17T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-201909-804"
      }
    ]
  },
  "sources_update_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2020-03-25T00:00:00",
        "db": "CNVD",
        "id": "CNVD-2020-19212"
      },
      {
        "date": "2019-09-19T00:00:00",
        "db": "VULHUB",
        "id": "VHN-131132"
      },
      {
        "date": "2019-09-19T00:00:00",
        "db": "VULMON",
        "id": "CVE-2018-20336"
      },
      {
        "date": "2019-09-24T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2018-016073"
      },
      {
        "date": "2019-09-19T22:15:10.613000",
        "db": "NVD",
        "id": "CVE-2018-20336"
      },
      {
        "date": "2019-09-30T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-201909-804"
      }
    ]
  },
  "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-201909-804"
      }
    ],
    "trust": 0.6
  },
  "title": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/title#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "ASUSWRT Vulnerable to classic buffer overflow",
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2018-016073"
      }
    ],
    "trust": 0.8
  },
  "type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "buffer error",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-201909-804"
      }
    ],
    "trust": 0.6
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

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…