CVE-2021-36799 (GCVE-0-2021-36799)
Vulnerability from cvelistv5 – Published: 2021-07-19 16:31 – Updated: 2024-08-04 01:01 Unsupported When Assigned
VLAI
EPSS
VEX
Summary
KNX ETS5 through 5.7.6 uses the hard-coded password ETS5Password, with a salt value of Ivan Medvedev, allowing local users to read project information. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
Severity
8.8 (High)
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/robertguetzkow/ets5-password-r… | x_refsource_MISC |
| https://www.knx.org/knx-en/for-professionals/soft… | x_refsource_MISC |
| http://packetstormsecurity.com/files/165200/ETS5-… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T01:01:59.381Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/robertguetzkow/ets5-password-recovery"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.knx.org/knx-en/for-professionals/software/ets-5-professional/"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://packetstormsecurity.com/files/165200/ETS5-Password-Recovery-Tool.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "KNX ETS5 through 5.7.6 uses the hard-coded password ETS5Password, with a salt value of Ivan Medvedev, allowing local users to read project information. NOTE: This vulnerability only affects products that are no longer supported by the maintainer"
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-12-08T17:06:13.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/robertguetzkow/ets5-password-recovery"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.knx.org/knx-en/for-professionals/software/ets-5-professional/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://packetstormsecurity.com/files/165200/ETS5-Password-Recovery-Tool.html"
}
],
"tags": [
"unsupported-when-assigned"
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2021-36799",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** UNSUPPORTED WHEN ASSIGNED ** KNX ETS5 through 5.7.6 uses the hard-coded password ETS5Password, with a salt value of Ivan Medvedev, allowing local users to read project information. NOTE: This vulnerability only affects products that are no longer supported by the maintainer."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/robertguetzkow/ets5-password-recovery",
"refsource": "MISC",
"url": "https://github.com/robertguetzkow/ets5-password-recovery"
},
{
"name": "https://www.knx.org/knx-en/for-professionals/software/ets-5-professional/",
"refsource": "MISC",
"url": "https://www.knx.org/knx-en/for-professionals/software/ets-5-professional/"
},
{
"name": "http://packetstormsecurity.com/files/165200/ETS5-Password-Recovery-Tool.html",
"refsource": "MISC",
"url": "http://packetstormsecurity.com/files/165200/ETS5-Password-Recovery-Tool.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2021-36799",
"datePublished": "2021-07-19T16:31:25.000Z",
"dateReserved": "2021-07-19T00:00:00.000Z",
"dateUpdated": "2024-08-04T01:01:59.381Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-36799",
"date": "2026-09-19",
"epss": "0.00418",
"percentile": "0.35723"
},
"fkie_nvd": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:knx:engineering_tool_software_5:*:*:*:*:*:*:*:*",
"matchCriteriaId": "5601DBE0-1467-4B6E-A5D3-1EC58E35E36B",
"versionEndIncluding": "5.7.6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [
{
"sourceIdentifier": "cve@mitre.org",
"tags": [
"unsupported-when-assigned"
]
}
],
"descriptions": [
{
"lang": "en",
"value": "KNX ETS5 through 5.7.6 uses the hard-coded password ETS5Password, with a salt value of Ivan Medvedev, allowing local users to read project information. NOTE: This vulnerability only affects products that are no longer supported by the maintainer"
},
{
"lang": "es",
"value": "** NO SOPORTADO CUANDO SE ASIGN\u00d3 ** KNX ETS5 a trav\u00e9s de la 5.7.6 utiliza la contrase\u00f1a hard-coded ETS5Password, con un valor de sal de Ivan Medvedev, permitiendo a los usuarios locales leer la informaci\u00f3n del proyecto. NOTA: Esta vulnerabilidad s\u00f3lo afecta a los productos que ya no son soportados por el mantenedor"
}
],
"id": "CVE-2021-36799",
"lastModified": "2024-11-21T06:14:07.687",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 2.1,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 6.0,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-07-19T17:15:11.920",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://packetstormsecurity.com/files/165200/ETS5-Password-Recovery-Tool.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/robertguetzkow/ets5-password-recovery"
},
{
"source": "cve@mitre.org",
"tags": [
"Product",
"Vendor Advisory"
],
"url": "https://www.knx.org/knx-en/for-professionals/software/ets-5-professional/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://packetstormsecurity.com/files/165200/ETS5-Password-Recovery-Tool.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/robertguetzkow/ets5-password-recovery"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Product",
"Vendor Advisory"
],
"url": "https://www.knx.org/knx-en/for-professionals/software/ets-5-professional/"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-798"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:knx:engineering_tool_software_5:*:*:*:*:*:*:*:*",
"matchCriteriaId": "5601DBE0-1467-4B6E-A5D3-1EC58E35E36B",
"versionEndIncluding": "5.7.6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [
{
"sourceIdentifier": "cve@mitre.org",
"tags": [
"unsupported-when-assigned"
]
}
],
"descriptions": [
{
"lang": "en",
"value": "KNX ETS5 through 5.7.6 uses the hard-coded password ETS5Password, with a salt value of Ivan Medvedev, allowing local users to read project information. NOTE: This vulnerability only affects products that are no longer supported by the maintainer"
},
{
"lang": "es",
"value": "** NO SOPORTADO CUANDO SE ASIGN\u00d3 ** KNX ETS5 a trav\u00e9s de la 5.7.6 utiliza la contrase\u00f1a hard-coded ETS5Password, con un valor de sal de Ivan Medvedev, permitiendo a los usuarios locales leer la informaci\u00f3n del proyecto. NOTA: Esta vulnerabilidad s\u00f3lo afecta a los productos que ya no son soportados por el mantenedor"
}
],
"id": "CVE-2021-36799",
"lastModified": "2024-11-21T06:14:07.687",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 2.1,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.0,
"impactScore": 6.0,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-07-19T17:15:11.920",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://packetstormsecurity.com/files/165200/ETS5-Password-Recovery-Tool.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/robertguetzkow/ets5-password-recovery"
},
{
"source": "cve@mitre.org",
"tags": [
"Product",
"Vendor Advisory"
],
"url": "https://www.knx.org/knx-en/for-professionals/software/ets-5-professional/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://packetstormsecurity.com/files/165200/ETS5-Password-Recovery-Tool.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/robertguetzkow/ets5-password-recovery"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Product",
"Vendor Advisory"
],
"url": "https://www.knx.org/knx-en/for-professionals/software/ets-5-professional/"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-798"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T13:48:08+00:00",
"cve": "CVE-2021-36799",
"id": "CVE-2021-36799",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2021-36799",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-36799.json",
"version": "3"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…