fkie_cve-2021-36762
Vulnerability from fkie_nvd
Published
2021-08-19 12:15
Modified
2024-11-21 06:14
Severity ?
Summary
An issue was discovered in HCC Embedded InterNiche NicheStack through 4.3. The tfshnd():tftpsrv.c TFTP packet processing function doesn't ensure that a filename is adequately '\0' terminated; therefore, a subsequent call to strlen for the filename might read out of bounds of the protocol packet buffer (if no '\0' byte exists within a reasonable range).
References
| URL | Tags | ||
|---|---|---|---|
| cve@mitre.org | https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ | Mitigation, Third Party Advisory | |
| cve@mitre.org | https://www.hcc-embedded.com/about/about-interniche | Product | |
| cve@mitre.org | https://www.kb.cert.org/vuls/id/608209 | Third Party Advisory, US Government Resource | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ | Mitigation, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.hcc-embedded.com/about/about-interniche | Product | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.kb.cert.org/vuls/id/608209 | Third Party Advisory, US Government Resource |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| hcc-embedded | nichestack | * |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:hcc-embedded:nichestack:*:*:*:*:*:*:*:*",
"matchCriteriaId": "36A27EF5-D19C-4126-850C-89387A7A1410",
"versionEndExcluding": "4.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in HCC Embedded InterNiche NicheStack through 4.3. The tfshnd():tftpsrv.c TFTP packet processing function doesn\u0027t ensure that a filename is adequately \u0027\\0\u0027 terminated; therefore, a subsequent call to strlen for the filename might read out of bounds of the protocol packet buffer (if no \u0027\\0\u0027 byte exists within a reasonable range)."
},
{
"lang": "es",
"value": "Se ha detectado un problema en HCC Embedded InterNicheStack versiones hasta 4.3. La funci\u00f3n packet processing TFTP tfshnd():tftpsrv.c no asegura que un nombre de archivo est\u00e9 apropiadamente terminado en \"\\0\"; por lo tanto, una llamada posterior a strlen para el nombre de archivo podr\u00eda leer fuera de l\u00edmites del b\u00fafer de paquetes del protocolo (si no presenta ning\u00fan byte \"\\0\" dentro de un rango razonable)."
}
],
"id": "CVE-2021-36762",
"lastModified": "2024-11-21T06:14:02.443",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 7.8,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:C/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-08-19T12:15:09.133",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Mitigation",
"Third Party Advisory"
],
"url": "https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/"
},
{
"source": "cve@mitre.org",
"tags": [
"Product"
],
"url": "https://www.hcc-embedded.com/about/about-interniche"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"url": "https://www.kb.cert.org/vuls/id/608209"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mitigation",
"Third Party Advisory"
],
"url": "https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Product"
],
"url": "https://www.hcc-embedded.com/about/about-interniche"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"url": "https://www.kb.cert.org/vuls/id/608209"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-Other"
}
],
"source": "nvd@nist.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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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