var-201801-1869
Vulnerability from variot

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Advantech WebAccess. Authentication is not required to exploit this vulnerability.The specific flaw exists within the implementation of the 0x2721 IOCTL in the webvrpcs process. The issue results from the lack of proper validation of a user-supplied value prior to using it as a memory address in a free operation. An attacker can leverage this functionality to execute code under the context of Administrator.

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-201801-1869",
  "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": "webaccess",
        "scope": null,
        "trust": 0.7,
        "vendor": "advantech",
        "version": null
      }
    ],
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-18-063"
      }
    ]
  },
  "credits": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/credits#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Steven Seeley (mr_me) of Offensive Security",
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-18-063"
      }
    ],
    "trust": 0.7
  },
  "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": null,
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "author": "ZDI",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "exploitabilityScore": 8.6,
            "id": "ZDI-18-063",
            "impactScore": 6.4,
            "integrityImpact": "PARTIAL",
            "obtainAllPrivilege": null,
            "obtainOtherPrivilege": null,
            "obtainUserPrivilege": null,
            "severity": "MEDIUM",
            "trust": 0.7,
            "userInteractionRequired": null,
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          }
        ],
        "cvssV3": [],
        "severity": [
          {
            "author": "ZDI",
            "id": "ZDI-18-063",
            "trust": 0.7,
            "value": "MEDIUM"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-18-063"
      }
    ]
  },
  "description": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/description#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Advantech WebAccess. Authentication is not required to exploit this vulnerability.The specific flaw exists within the implementation of the 0x2721 IOCTL in the webvrpcs process. The issue results from the lack of proper validation of a user-supplied value prior to using it as a memory address in a free operation. An attacker can leverage this functionality to execute code under the context of Administrator.",
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-18-063"
      }
    ],
    "trust": 0.7
  },
  "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": "ZDI_CAN",
        "id": "ZDI-CAN-5066",
        "trust": 0.7
      },
      {
        "db": "ZDI",
        "id": "ZDI-18-063",
        "trust": 0.7
      }
    ],
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-18-063"
      }
    ]
  },
  "id": "VAR-201801-1869",
  "iot": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/iot#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": true,
    "sources": [
      {
        "db": "VARIoT devices database",
        "id": null
      }
    ],
    "trust": 0.41739574
  },
  "last_update_date": "2022-05-17T01:52:35.867000Z",
  "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": "Advantech has issued an update to correct this vulnerability.",
        "trust": 0.7,
        "url": "https://ics-cert.us-cert.gov/advisories/icsa-18-004-02"
      }
    ],
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-18-063"
      }
    ]
  },
  "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": 0.7,
        "url": "https://ics-cert.us-cert.gov/advisories/icsa-18-004-02"
      }
    ],
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-18-063"
      }
    ]
  },
  "sources": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "db": "ZDI",
        "id": "ZDI-18-063"
      }
    ]
  },
  "sources_release_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2018-01-05T00:00:00",
        "db": "ZDI",
        "id": "ZDI-18-063"
      }
    ]
  },
  "sources_update_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2018-01-05T00:00:00",
        "db": "ZDI",
        "id": "ZDI-18-063"
      }
    ]
  },
  "title": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/title#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Advantech WebAccess webvrpcs drawsrv Arbitrary Free Remote Code Execution Vulnerability",
    "sources": [
      {
        "db": "ZDI",
        "id": "ZDI-18-063"
      }
    ],
    "trust": 0.7
  }
}


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 seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.