fkie_cve-2021-22659
Vulnerability from fkie_nvd
Published
2021-03-25 16:15
Modified
2024-11-21 05:50
Severity ?
Summary
Rockwell Automation MicroLogix 1400 Version 21.6 and below may allow a remote unauthenticated attacker to send a specially crafted Modbus packet allowing the attacker to retrieve or modify random values in the register. If successfully exploited, this may lead to a buffer overflow resulting in a denial-of-service condition. The FAULT LED will flash RED and communications may be lost. Recovery from denial-of-service condition requires the fault to be cleared by the user.
References
| ▶ | URL | Tags | |
|---|---|---|---|
| ics-cert@hq.dhs.gov | https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1129877/loc/en_US#__highlight | Permissions Required, Vendor Advisory | |
| ics-cert@hq.dhs.gov | https://us-cert.cisa.gov/ics/advisories/icsa-21-033-01 | Third Party Advisory, US Government Resource | |
| af854a3a-2127-422b-91ae-364da2661108 | https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1129877/loc/en_US#__highlight | Permissions Required, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://us-cert.cisa.gov/ics/advisories/icsa-21-033-01 | Third Party Advisory, US Government Resource |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| rockwellautomation | micrologix_1400_firmware | * | |
| rockwellautomation | micrologix_1400 | - |
{
"configurations": [
{
"nodes": [
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"criteria": "cpe:2.3:o:rockwellautomation:micrologix_1400_firmware:*:*:*:*:*:*:*:*",
"matchCriteriaId": "325F851D-26F6-4361-95A8-1CB68746B5E3",
"versionEndIncluding": "21.6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
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"criteria": "cpe:2.3:h:rockwellautomation:micrologix_1400:-:*:*:*:*:*:*:*",
"matchCriteriaId": "196EA0BE-FDF3-46BE-B3DA-5F49208C5D80",
"vulnerable": false
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Rockwell Automation MicroLogix 1400 Version 21.6 and below may allow a remote unauthenticated attacker to send a specially crafted Modbus packet allowing the attacker to retrieve or modify random values in the register. If successfully exploited, this may lead to a buffer overflow resulting in a denial-of-service condition. The FAULT LED will flash RED and communications may be lost. Recovery from denial-of-service condition requires the fault to be cleared by the user."
},
{
"lang": "es",
"value": "Rockwell Automation MicroLogix 1400 versi\u00f3n 21.6 y anteriores, puede permitir a un atacante remoto no autenticado enviar un paquete Modbus especialmente dise\u00f1ado que le permita al atacante recuperar o modificar valores aleatorios en el registro.\u0026#xa0;Si es explotado con \u00e9xito, esto puede conllevar a un desbordamiento del b\u00fafer que resulte en una condici\u00f3n de denegaci\u00f3n de servicio.\u0026#xa0;El LED de FALLO parpadear\u00e1 en ROJO y es posible que se pierdan las comunicaciones.\u0026#xa0;Una recuperaci\u00f3n de la condici\u00f3n de denegaci\u00f3n de servicio requiere que el fallo sea eliminado por usuario"
}
],
"id": "CVE-2021-22659",
"lastModified": "2024-11-21T05:50:25.370",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 4.7,
"source": "nvd@nist.gov",
"type": "Primary"
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},
"published": "2021-03-25T16:15:14.040",
"references": [
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"tags": [
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"url": "https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1129877/loc/en_US#__highlight"
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"sourceIdentifier": "ics-cert@hq.dhs.gov",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-120"
}
],
"source": "ics-cert@hq.dhs.gov",
"type": "Primary"
}
]
}
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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.
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