CVE-2019-5636 (GCVE-0-2019-5636)
Vulnerability from cvelistv5 – Published: 2019-11-21 19:16 – Updated: 2024-09-17 03:18
VLAI?
Summary
When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).
Severity ?
5.3 (Medium)
CWE
- CWE-404 - Improper Resource Shutdown or Release
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Beckhoff | TwinCAT 2 |
Affected:
2304 , ≤ 2304
(custom)
|
|||||||
|
|||||||||
Credits
This issue was discovered, and reported to Rapid7, by Andreas Galauner at Rapid7. It is being disclosed in accordance with Rapid7's vulnerability disclosure policy (https://www.rapid7.com/disclosure/).
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T20:01:52.163Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-004.pdf"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "TwinCAT 2",
"vendor": "Beckhoff",
"versions": [
{
"lessThanOrEqual": "2304",
"status": "affected",
"version": "2304",
"versionType": "custom"
}
]
},
{
"product": "TwinCAT 3.1",
"vendor": "Beckhoff",
"versions": [
{
"lessThanOrEqual": "4204.0",
"status": "affected",
"version": "4204.0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "This issue was discovered, and reported to Rapid7, by Andreas Galauner at Rapid7. It is being disclosed in accordance with Rapid7\u0027s vulnerability disclosure policy (https://www.rapid7.com/disclosure/)."
}
],
"datePublic": "2019-10-08T00:00:00",
"descriptions": [
{
"lang": "en",
"value": "When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior)."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-404",
"description": "CWE-404 Improper Resource Shutdown or Release",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2020-02-04T22:58:40",
"orgId": "9974b330-7714-4307-a722-5648477acda7",
"shortName": "rapid7"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-004.pdf"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/"
}
],
"source": {
"advisory": "R7-2019-32",
"discovery": "EXTERNAL"
},
"title": "Beckhoff TwinCAT Discovery Service Denial of Service",
"x_generator": {
"engine": "Vulnogram 0.0.8"
},
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@rapid7.com",
"DATE_PUBLIC": "2019-10-08T14:05:00.000Z",
"ID": "CVE-2019-5636",
"STATE": "PUBLIC",
"TITLE": "Beckhoff TwinCAT Discovery Service Denial of Service"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "TwinCAT 2",
"version": {
"version_data": [
{
"version_affected": "\u003c=",
"version_name": "2304",
"version_value": "2304"
}
]
}
},
{
"product_name": "TwinCAT 3.1",
"version": {
"version_data": [
{
"version_affected": "\u003c=",
"version_name": "4204.0",
"version_value": "4204.0"
}
]
}
}
]
},
"vendor_name": "Beckhoff"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "This issue was discovered, and reported to Rapid7, by Andreas Galauner at Rapid7. It is being disclosed in accordance with Rapid7\u0027s vulnerability disclosure policy (https://www.rapid7.com/disclosure/)."
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior)."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.8"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-404 Improper Resource Shutdown or Release"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-004.pdf",
"refsource": "CONFIRM",
"url": "https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-004.pdf"
},
{
"name": "https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/",
"refsource": "MISC",
"url": "https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/"
}
]
},
"source": {
"advisory": "R7-2019-32",
"discovery": "EXTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "9974b330-7714-4307-a722-5648477acda7",
"assignerShortName": "rapid7",
"cveId": "CVE-2019-5636",
"datePublished": "2019-11-21T19:16:12.913139Z",
"dateReserved": "2019-01-07T00:00:00",
"dateUpdated": "2024-09-17T03:18:42.935Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"fkie_nvd": {
"configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:beckhoff:twincat:2.0:build2304:*:*:*:*:*:*\", \"matchCriteriaId\": \"CB711A2C-9F84-4462-82C8-296C51CC2F60\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:beckhoff:twincat:3.1:build4024.0:*:*:*:*:*:*\", \"matchCriteriaId\": \"BB46CCC9-4BF8-43CC-A382-5287F432DC9B\"}]}]}]",
"descriptions": "[{\"lang\": \"en\", \"value\": \"When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).\"}, {\"lang\": \"es\", \"value\": \"Cuando un Beckhoff TwinCAT Runtime recibe un paquete UDP con formato incorrecto, el servicio de descubrimiento de ADS se cierra. Tenga en cuenta que los dispositivos TwinCAT siguen funcionando normalmente. Este problema afecta a TwinCAT 2 versi\\u00f3n 2304 (y anterior) y TwinCAT 3.1 versi\\u00f3n 4204.0 (y anterior).\"}]",
"id": "CVE-2019-5636",
"lastModified": "2024-11-21T04:45:16.907",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"cve@rapid7.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"LOW\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 1.4}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:N/A:P\", \"baseScore\": 5.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 10.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
"published": "2019-11-21T20:15:15.897",
"references": "[{\"url\": \"https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/\", \"source\": \"cve@rapid7.com\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-004.pdf\", \"source\": \"cve@rapid7.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-004.pdf\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
"sourceIdentifier": "cve@rapid7.com",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"cve@rapid7.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-404\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-404\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2019-5636\",\"sourceIdentifier\":\"cve@rapid7.com\",\"published\":\"2019-11-21T20:15:15.897\",\"lastModified\":\"2024-11-21T04:45:16.907\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).\"},{\"lang\":\"es\",\"value\":\"Cuando un Beckhoff TwinCAT Runtime recibe un paquete UDP con formato incorrecto, el servicio de descubrimiento de ADS se cierra. Tenga en cuenta que los dispositivos TwinCAT siguen funcionando normalmente. Este problema afecta a TwinCAT 2 versi\u00f3n 2304 (y anterior) y TwinCAT 3.1 versi\u00f3n 4204.0 (y anterior).\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve@rapid7.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"cve@rapid7.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-404\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-404\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:beckhoff:twincat:2.0:build2304:*:*:*:*:*:*\",\"matchCriteriaId\":\"CB711A2C-9F84-4462-82C8-296C51CC2F60\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:beckhoff:twincat:3.1:build4024.0:*:*:*:*:*:*\",\"matchCriteriaId\":\"BB46CCC9-4BF8-43CC-A382-5287F432DC9B\"}]}]}],\"references\":[{\"url\":\"https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/\",\"source\":\"cve@rapid7.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-004.pdf\",\"source\":\"cve@rapid7.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-004.pdf\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
}
}
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…