CVE-2021-40368 (GCVE-0-2021-40368)
Vulnerability from cvelistv5 – Published: 2022-04-12 09:07 – Updated: 2025-04-21 13:54
VLAI?
Summary
A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414-2 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416-2 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416F-2 DP V7 (All versions), SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions < V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions < V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.
This could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations.
Severity ?
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
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"id": "CVE-2021-40368",
"lastModified": "2024-11-21T06:23:58.173",
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"published": "2022-04-12T09:15:13.343",
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SIPLUS variants) (All versions \u003c V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions \u003c V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions \u003c V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.\\n\\nThis could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations.\"},{\"lang\":\"es\",\"value\":\"Se ha identificado una vulnerabilidad en la familia de CPUs SIMATIC S7-400 H V6 (incluidas las variantes SIPLUS) (todas las versiones anteriores a V6.0.10), la familia de CPUs SIMATIC S7-400 PN/DP V7 (incluidas las variantes SIPLUS) (todas las versiones), la familia de CPUs SIMATIC S7-410 V10 (incluidas las variantes SIPLUS) (todas las versiones anteriores a V10.1) y la familia de CPUs SIMATIC S7-410 V8 (incluidas las variantes SIPLUS) (todas las versiones anteriores a V8.2.3). Los dispositivos afectados manejan incorrectamente paquetes especialmente dise\u00f1ados enviados al puerto 102/tcp. Esto podr\u00eda permitir a un atacante crear una condici\u00f3n de denegaci\u00f3n de servicio. Se necesita un reinicio para restaurar las operaciones normales\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"productcert@siemens.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"productcert@siemens.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-119\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-119\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:simatic_s7-400h_v6_firmware:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.0.10\",\"matchCriteriaId\":\"B9F393A1-B2CD-4584-A401-F782D52CF419\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:siemens:simatic_s7-400h_v6:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1D082EB6-3C13-40C1-9949-179DC59037C1\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:simatic_s7-400_pn\\\\/dp_v7_firmware:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EC44664E-830D-4122-A97A-1AFA61F5BBB5\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:siemens:simatic_s7-400_pn\\\\/dp_v7:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C48D93F2-FB6B-4D4D-84FB-3A7CDE89B727\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:simatic_s7-410_v8_firmware:*:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"18E1CA5D-3D7D-49D0-A417-235E2AF6075C\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:siemens:simatic_s7-410_v8:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"926D9DCF-A7EA-416A-9A07-122D1FCA027B\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:simatic_s7-410_v10_firmware:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"10.1\",\"matchCriteriaId\":\"FEB11632-058A-4D56-B176-FC864038E41A\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:siemens:simatic_s7-410_v10:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6F240847-0ADC-475C-BDDF-6483A8FF5602\"}]}]}],\"references\":[{\"url\":\"https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf\",\"source\":\"productcert@siemens.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T02:44:09.608Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-40368\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-04-18T15:12:26.532560Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-04-18T15:12:28.175Z\"}}], \"cna\": {\"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C\"}}], \"affected\": [{\"vendor\": \"Siemens\", \"product\": \" SIMATIC S7-400 CPU 412-1 DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \" SIMATIC S7-400 CPU 412-2 DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \" SIMATIC S7-400 CPU 412-2 PN/DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions \u003c V7.0.3\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \" SIMATIC S7-400 CPU 414-2 DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \" SIMATIC S7-400 CPU 414-3 DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \" SIMATIC S7-400 CPU 414-3 PN/DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions \u003c V7.0.3\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \" SIMATIC S7-400 CPU 414F-3 PN/DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions \u003c V7.0.3\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \" SIMATIC S7-400 CPU 416-2 DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \" SIMATIC S7-400 CPU 416-3 DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \" SIMATIC S7-400 CPU 416-3 PN/DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions \u003c V7.0.3\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \" SIMATIC S7-400 CPU 416F-2 DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \" SIMATIC S7-400 CPU 416F-3 PN/DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions \u003c V7.0.3\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \" SIMATIC S7-400 CPU 417-4 DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions \u003c V6.0.10\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions \u003c V10.1\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions \u003c V8.2.3\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIPLUS S7-400 CPU 414-3 PN/DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions \u003c V7.0.3\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIPLUS S7-400 CPU 416-3 PN/DP V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions \u003c V7.0.3\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIPLUS S7-400 CPU 416-3 V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIPLUS S7-400 CPU 417-4 V7\", \"versions\": [{\"status\": \"affected\", \"version\": \"All versions\"}], \"defaultStatus\": \"unknown\"}], \"references\": [{\"url\": \"https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions \u003c V7.0.3), SIMATIC S7-400 CPU 414-2 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions \u003c V7.0.3), SIMATIC S7-400 CPU 416-2 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3), SIMATIC S7-400 CPU 416F-2 DP V7 (All versions), SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions \u003c V7.0.3), SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions \u003c V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions \u003c V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions \u003c V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.\\n\\nThis could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-119\", \"description\": \"CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer\"}]}], \"providerMetadata\": {\"orgId\": \"cec7a2ec-15b4-4faf-bd53-b40f371f3a77\", \"shortName\": \"siemens\", \"dateUpdated\": \"2023-04-11T09:02:03.176Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2021-40368\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-04-21T13:54:27.056Z\", \"dateReserved\": \"2021-09-01T00:00:00.000Z\", \"assignerOrgId\": \"cec7a2ec-15b4-4faf-bd53-b40f371f3a77\", \"datePublished\": \"2022-04-12T09:07:23.000Z\", \"assignerShortName\": \"siemens\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
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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