VAR-201912-2034
Vulnerability from variot - Updated: 2022-05-17 01:46This 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 BwOpcBs.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{
"affected_products": {
"_id": null,
"data": [
{
"_id": null,
"model": "webaccess",
"scope": null,
"trust": 0.7,
"vendor": "advantech",
"version": null
}
],
"sources": [
{
"db": "ZDI",
"id": "ZDI-19-1010"
}
]
},
"credits": {
"_id": null,
"data": "Mat Powell of Trend Micro Zero Day Initiative",
"sources": [
{
"db": "ZDI",
"id": "ZDI-19-1010"
}
],
"trust": 0.7
},
"cvss": {
"_id": null,
"data": [
{
"cvssV2": [],
"cvssV3": [
{
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"author": "ZDI",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"exploitabilityScore": 3.9,
"id": "ZDI-19-1010",
"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-19-1010",
"trust": 0.7,
"value": "CRITICAL"
}
]
}
],
"sources": [
{
"db": "ZDI",
"id": "ZDI-19-1010"
}
]
},
"description": {
"_id": null,
"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 BwOpcBs.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-19-1010"
}
],
"trust": 0.7
},
"external_ids": {
"_id": null,
"data": [
{
"db": "ZDI_CAN",
"id": "ZDI-CAN-7883",
"trust": 0.7
},
{
"db": "ZDI",
"id": "ZDI-19-1010",
"trust": 0.7
}
],
"sources": [
{
"db": "ZDI",
"id": "ZDI-19-1010"
}
]
},
"id": "VAR-201912-2034",
"iot": {
"_id": null,
"data": true,
"sources": [
{
"db": "VARIoT devices database",
"id": null
}
],
"trust": 0.41739574
},
"last_update_date": "2022-05-17T01:46:21.009000Z",
"sources": {
"_id": null,
"data": [
{
"db": "ZDI",
"id": "ZDI-19-1010",
"ident": null
}
]
},
"sources_release_date": {
"_id": null,
"data": [
{
"date": "2019-12-12T00:00:00",
"db": "ZDI",
"id": "ZDI-19-1010",
"ident": null
}
]
},
"sources_update_date": {
"_id": null,
"data": [
{
"date": "2019-12-12T00:00:00",
"db": "ZDI",
"id": "ZDI-19-1010",
"ident": null
}
]
},
"title": {
"_id": null,
"data": "(0Day) Advantech WebAccess Node BwOpcBs Stack-based Buffer Overflow Remote Code Execution Vulnerability",
"sources": [
{
"db": "ZDI",
"id": "ZDI-19-1010"
}
],
"trust": 0.7
}
}
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…
Loading…