CVE-2024-32943 - Vulnerability Details - OpenCVE

An attacker may be able to cause a denial-of-service condition by sending many SSH packets repeatedly.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Westermo	L210-f2g L210-f2g Firmware

Configuration 1 [-]

AND

cpe:2.3:o:westermo:l210-f2g_firmware:4.21.0:*:*:*:*:*:*:*

cpe:2.3:h:westermo:l210-f2g:-:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://www.cisa.gov/news-events/ics-advisories/icsa-24-172-03

History

Wed, 30 Jul 2025 18:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Westermo Westermo l210-f2g Westermo l210-f2g Firmware
CPEs		cpe:2.3:h:westermo:l210-f2g:-:::::::* cpe:2.3:o:westermo:l210-f2g_firmware:4.21.0:::::::*
Vendors & Products		Westermo Westermo l210-f2g Westermo l210-f2g Firmware

MITRE

Status: PUBLISHED

Assigner: icscert

Published: 2024-06-20T22:12:34.239Z

Updated: 2024-08-02T02:27:52.185Z

Reserved: 2024-06-13T14:52:17.243Z

Link: CVE-2024-32943

Vulnrichment

Updated: 2024-08-02T02:27:52.185Z

NVD

Status : Analyzed

Published: 2024-06-20T23:15:51.940

Modified: 2025-07-30T18:05:27.247

Link: CVE-2024-32943

Redhat

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-32943", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "state": "PUBLISHED", "assignerShortName": "icscert", "dateReserved": "2024-06-13T14:52:17.243Z", "datePublished": "2024-06-20T22:12:34.239Z", "dateUpdated": "2024-08-02T02:27:52.185Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "L210-F2G Lynx", "vendor": "Westermo", "versions": [{"status": "affected", "version": "4.21.0"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Aviv Malka and Joseph Baum of OTORIO reported these vulnerabilities to CISA."}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "\n\n\nAn attacker may be able to cause a denial-of-service condition by sending many SSH packets repeatedly.\n\n"}], "value": "An attacker may be able to cause a denial-of-service condition by sending many SSH packets repeatedly."}], "metrics": [{"cvssV3_1": {"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"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 8.7, "baseSeverity": "HIGH", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-799", "description": "CWE-799", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2024-06-20T22:12:34.239Z"}, "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-24-172-03"}], "source": {"advisory": "ICSA-24-172-03", "discovery": "EXTERNAL"}, "title": "Westermo L210-F2G Lynx Improper Control of Interaction Frequency", "workarounds": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "\n<p>Westermo advises users to disable HTTP access to the WebGUI and \ninstead use HTTPS instead. This change will secure the credentials and \nsession IDs, effectively nullifying the exploits described.</p>\n<p>To mitigate the risk of a denial-of-service attack through continuous\n login attempts, Westermo recommends disabling access to the device's \nWebGUI on external communication interfaces. For devices in production \nenvironments, disabling the WebGUI is suggested if possible.</p>\n<p>Westermo suggests limiting access to the device's CLI on external \ncommunication interfaces to prevent SSH DOS attacks through repeated \nlogin attempts.</p>\n<p>Westermo will keep users updated on any further enhancements.</p>\n\n<br>"}], "value": "Westermo advises users to disable HTTP access to the WebGUI and \ninstead use HTTPS instead. This change will secure the credentials and \nsession IDs, effectively nullifying the exploits described.\n\n\nTo mitigate the risk of a denial-of-service attack through continuous\n login attempts, Westermo recommends disabling access to the device's \nWebGUI on external communication interfaces. For devices in production \nenvironments, disabling the WebGUI is suggested if possible.\n\n\nWestermo suggests limiting access to the device's CLI on external \ncommunication interfaces to prevent SSH DOS attacks through repeated \nlogin attempts.\n\n\nWestermo will keep users updated on any further enhancements."}], "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-06-21T13:47:36.074775Z", "id": "CVE-2024-32943", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-21T13:47:48.242Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T02:27:52.185Z"}, "title": "CVE Program Container", "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-24-172-03", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-24-172-03", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T02:27:52.185Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-32943", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-06-21T13:47:36.074775Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-21T13:47:42.427Z"}}], "cna": {"title": "Westermo L210-F2G Lynx Improper Control of Interaction Frequency", "source": {"advisory": "ICSA-24-172-03", "discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Aviv Malka and Joseph Baum of OTORIO reported these vulnerabilities to CISA."}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Westermo", "product": "L210-F2G Lynx", "versions": [{"status": "affected", "version": "4.21.0"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-24-172-03"}], "workarounds": [{"lang": "en", "value": "Westermo advises users to disable HTTP access to the WebGUI and \ninstead use HTTPS instead. This change will secure the credentials and \nsession IDs, effectively nullifying the exploits described.\n\n\nTo mitigate the risk of a denial-of-service attack through continuous\n login attempts, Westermo recommends disabling access to the device's \nWebGUI on external communication interfaces. For devices in production \nenvironments, disabling the WebGUI is suggested if possible.\n\n\nWestermo suggests limiting access to the device's CLI on external \ncommunication interfaces to prevent SSH DOS attacks through repeated \nlogin attempts.\n\n\nWestermo will keep users updated on any further enhancements.", "supportingMedia": [{"type": "text/html", "value": "\n<p>Westermo advises users to disable HTTP access to the WebGUI and \ninstead use HTTPS instead. This change will secure the credentials and \nsession IDs, effectively nullifying the exploits described.</p>\n<p>To mitigate the risk of a denial-of-service attack through continuous\n login attempts, Westermo recommends disabling access to the device's \nWebGUI on external communication interfaces. For devices in production \nenvironments, disabling the WebGUI is suggested if possible.</p>\n<p>Westermo suggests limiting access to the device's CLI on external \ncommunication interfaces to prevent SSH DOS attacks through repeated \nlogin attempts.</p>\n<p>Westermo will keep users updated on any further enhancements.</p>\n\n<br>", "base64": false}]}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "An attacker may be able to cause a denial-of-service condition by sending many SSH packets repeatedly.", "supportingMedia": [{"type": "text/html", "value": "\n\n\nAn attacker may be able to cause a denial-of-service condition by sending many SSH packets repeatedly.\n\n", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-799", "description": "CWE-799"}]}], "providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2024-06-20T22:12:34.239Z"}}}, "cveMetadata": {"cveId": "CVE-2024-32943", "state": "PUBLISHED", "dateUpdated": "2024-08-02T02:27:52.185Z", "dateReserved": "2024-06-13T14:52:17.243Z", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "datePublished": "2024-06-20T22:12:34.239Z", "assignerShortName": "icscert"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:westermo:l210-f2g_firmware:4.21.0:*:*:*:*:*:*:*", "matchCriteriaId": "B4712143-6A81-44AF-8F1A-9A49930FF4E6", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:westermo:l210-f2g:-:*:*:*:*:*:*:*", "matchCriteriaId": "27754675-F9E5-4BDA-8DD6-487363BEABC0", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An attacker may be able to cause a denial-of-service condition by sending many SSH packets repeatedly."}, {"lang": "es", "value": "Un atacante puede provocar una condici\u00f3n de denegaci\u00f3n de servicio enviando muchos paquetes SSH repetidamente."}], "id": "CVE-2024-32943", "lastModified": "2025-07-30T18:05:27.247", "metrics": {"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": "[email protected]", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2024-06-20T23:15:51.940", "references": [{"source": "[email protected]", "tags": ["Third Party Advisory", "US Government Resource"], "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-24-172-03"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "US Government Resource"], "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-24-172-03"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-799"}], "source": "[email protected]", "type": "Secondary"}]}