var-201902-0943
Vulnerability from variot
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Advantech WebAccess Node. Authentication is not required to exploit this vulnerability.The specific flaw exists within spchapi.exe, which is accessed through the 0x2711 IOCTL in the webvrpcs process. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in 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-201902-0943", "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-19-229" } ] }, "credits": { "@context": { "@vocab": "https://www.variotdbs.pl/ref/credits#", "sources": { "@container": "@list", "@context": { "@vocab": "https://www.variotdbs.pl/ref/sources#" } } }, "data": "Natnael Samson (@NattiSamson)", "sources": [ { "db": "ZDI", "id": "ZDI-19-229" } ], "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": [], "cvssV3": [ { "attackComplexity": "LOW", "attackVector": "NETWORK", "author": "ZDI", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "exploitabilityScore": 3.9, "id": "ZDI-19-229", "impactScore": 5.9, "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "trust": 0.7, "userInteraction": "NONE", "vectorString": "AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0" } ], "severity": [ { "author": "ZDI", "id": "ZDI-19-229", "trust": 0.7, "value": "CRITICAL" } ] } ], "sources": [ { "db": "ZDI", "id": "ZDI-19-229" } ] }, "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 Node. Authentication is not required to exploit this vulnerability.The specific flaw exists within spchapi.exe, which is accessed through the 0x2711 IOCTL in the webvrpcs process. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of Administrator.", "sources": [ { "db": "ZDI", "id": "ZDI-19-229" } ], "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-7878", "trust": 0.7 }, { "db": "ZDI", "id": "ZDI-19-229", "trust": 0.7 } ], "sources": [ { "db": "ZDI", "id": "ZDI-19-229" } ] }, "id": "VAR-201902-0943", "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": "2022-05-17T02:10:29.035000Z", "sources": { "@context": { "@vocab": "https://www.variotdbs.pl/ref/sources#", "data": { "@container": "@list" } }, "data": [ { "db": "ZDI", "id": "ZDI-19-229" } ] }, "sources_release_date": { "@context": { "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#", "data": { "@container": "@list" } }, "data": [ { "date": "2019-02-28T00:00:00", "db": "ZDI", "id": "ZDI-19-229" } ] }, "sources_update_date": { "@context": { "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#", "data": { "@container": "@list" } }, "data": [ { "date": "2019-05-30T00:00:00", "db": "ZDI", "id": "ZDI-19-229" } ] }, "title": { "@context": { "@vocab": "https://www.variotdbs.pl/ref/title#", "sources": { "@container": "@list", "@context": { "@vocab": "https://www.variotdbs.pl/ref/sources#" } } }, "data": "(0Day) Advantech WebAccess Node spchapi Stack-based Buffer Overflow Remote Code Execution Vulnerability", "sources": [ { "db": "ZDI", "id": "ZDI-19-229" } ], "trust": 0.7 } }
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.