fkie_cve-2021-34593
Vulnerability from fkie_nvd
Published
2021-10-26 10:15
Modified
2025-08-15 20:25
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing the PLC.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
wago | 750-8202_firmware | * | |
wago | 750-8202 | - | |
wago | 750-8203_firmware | * | |
wago | 750-8203 | - | |
wago | 750-8204_firmware | * | |
wago | 750-8204 | - | |
wago | 750-8206_firmware | * | |
wago | 750-8206 | - | |
wago | 750-8207_firmware | * | |
wago | 750-8207 | - | |
wago | 750-8208_firmware | * | |
wago | 750-8208 | - | |
wago | 750-8210_firmware | * | |
wago | 750-8210 | - | |
wago | 750-8211_firmware | * | |
wago | 750-8211 | - | |
wago | 750-8212_firmware | * | |
wago | 750-8212 | - | |
wago | 750-8213_firmware | * | |
wago | 750-8213 | - | |
wago | 750-8214_firmware | * | |
wago | 750-8214 | - | |
wago | 750-8216_firmware | * | |
wago | 750-8216 | - | |
wago | 750-8217_firmware | * | |
wago | 750-8217 | - | |
codesys | plcwinnt | * | |
codesys | runtime_toolkit | * |
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Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing the PLC." }, { "lang": "es", "value": "En CODESYS V2 Runtime Toolkit 32 Bit full y PLCWinNT versiones anteriores a V2.4.7.56, las peticiones no v\u00e1lidas dise\u00f1adas sin autenticaci\u00f3n pueden resultar en varias condiciones de denegaci\u00f3n de servicio. Los programas de PLC en ejecuci\u00f3n pueden detenerse, puede perderse la memoria, o puede bloquearse el acceso de otros clientes de comunicaci\u00f3n al PLC" } ], "id": "CVE-2021-34593", "lastModified": "2025-08-15T20:25:58.247", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0" }, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV31": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "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:H", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "info@cert.vde.com", "type": "Secondary" }, { "cvssData": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "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:H", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Secondary" } ] }, "published": "2021-10-26T10:15:08.013", "references": [ { "source": "info@cert.vde.com", "tags": [ "Exploit", "Third Party Advisory", "VDB Entry" ], "url": "http://packetstormsecurity.com/files/164716/CODESYS-2.4.7.0-Denial-Of-Service.html" }, { "source": "info@cert.vde.com", "tags": [ "Exploit", "Third Party Advisory", "VDB Entry" ], "url": "http://packetstormsecurity.com/files/165874/WAGO-750-8xxx-PLC-Denial-Of-Service-User-Enumeration.html" }, { "source": "info@cert.vde.com", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://seclists.org/fulldisclosure/2021/Oct/64" }, { "source": "info@cert.vde.com", "tags": [ "Vendor Advisory" ], "url": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=16877\u0026token=8faab0fc1e069f4edfca5d5aba8146139f67a175\u0026download=" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Third Party Advisory", "VDB Entry" ], "url": "http://packetstormsecurity.com/files/164716/CODESYS-2.4.7.0-Denial-Of-Service.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Third Party Advisory", "VDB Entry" ], "url": "http://packetstormsecurity.com/files/165874/WAGO-750-8xxx-PLC-Denial-Of-Service-User-Enumeration.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://seclists.org/fulldisclosure/2021/Oct/64" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Vendor Advisory" ], "url": "https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=16877\u0026token=8faab0fc1e069f4edfca5d5aba8146139f67a175\u0026download=" } ], "sourceIdentifier": "info@cert.vde.com", "vulnStatus": "Analyzed", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-755" } ], "source": "info@cert.vde.com", "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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