FKIE_CVE-2018-5440
Vulnerability from fkie_nvd - Published: 2018-02-15 10:29 - Updated: 2026-06-17 02:00
Severity
Summary
A Stack-based Buffer Overflow issue was discovered in 3S-Smart CODESYS Web Server. Specifically: all Microsoft Windows (also WinCE) based CODESYS web servers running stand-alone Version 2.3, or as part of the CODESYS runtime system running prior to Version V1.1.9.19. A crafted request may cause a buffer overflow and could therefore execute arbitrary code on the web server or lead to a denial-of-service condition due to a crash in the web server.
References
| URL | Tags | ||
|---|---|---|---|
| ics-cert@hq.dhs.gov | http://www.securityfocus.com/bid/102909 | Third Party Advisory, VDB Entry | |
| ics-cert@hq.dhs.gov | https://ics-cert.us-cert.gov/advisories/ICSA-18-032-02 | Third Party Advisory, US Government Resource | |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.securityfocus.com/bid/102909 | Third Party Advisory, VDB Entry | |
| af854a3a-2127-422b-91ae-364da2661108 | https://ics-cert.us-cert.gov/advisories/ICSA-18-032-02 | Third Party Advisory, US Government Resource |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| 3s-software | codesys_runtime_system | * | |
| 3s-software | codesys_web_server | 2.3 |
{
"affected": [
{
"affectedData": [
{
"product": "3S-Smart Software Solutions GmbH CODESYS Web Server",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "3S-Smart Software Solutions GmbH CODESYS Web Server"
}
]
}
],
"source": "ics-cert@hq.dhs.gov"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:3s-software:codesys_runtime_system:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B75FDB8D-51F3-43D4-B2ED-990F0ED9CC17",
"versionEndExcluding": "1.1.9.19",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:3s-software:codesys_web_server:2.3:*:*:*:*:*:*:*",
"matchCriteriaId": "0F918177-556A-494A-A524-D4FEEF8CBE20",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A Stack-based Buffer Overflow issue was discovered in 3S-Smart CODESYS Web Server. Specifically: all Microsoft Windows (also WinCE) based CODESYS web servers running stand-alone Version 2.3, or as part of the CODESYS runtime system running prior to Version V1.1.9.19. A crafted request may cause a buffer overflow and could therefore execute arbitrary code on the web server or lead to a denial-of-service condition due to a crash in the web server."
},
{
"lang": "es",
"value": "Se ha descubierto un problema de desbordamiento de b\u00fafer basado en pila en 3S-Smart CODESYS Web Server. Espec\u00edficamente: todos los servidores web CODESYS basados en Microsoft Windows (tambi\u00e9n WinCE) que ejecutan la versi\u00f3n independiente 2.3 o que formen parte del sistema runtime CODESYS que ejecuta versiones anteriores a la V1.1.9.19. Una petici\u00f3n manipulada podr\u00eda provocar un desbordamiento de b\u00fafer y, por lo tanto, ejecutar c\u00f3digo arbitrario en el servidor web o desembocar en una condici\u00f3n de denegaci\u00f3n de servicio (DoS) debido a un cierre inesperado en el servidor web."
}
],
"id": "CVE-2018-5440",
"lastModified": "2026-06-17T02:00:19.447",
"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": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2018-02-15T10:29:00.680",
"references": [
{
"source": "ics-cert@hq.dhs.gov",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/102909"
},
{
"source": "ics-cert@hq.dhs.gov",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-032-02"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/102909"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-032-02"
}
],
"sourceIdentifier": "ics-cert@hq.dhs.gov",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-121"
}
],
"source": "ics-cert@hq.dhs.gov",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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.
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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.
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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.
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