cve-2021-31894
Vulnerability from cvelistv5
Published
2021-07-13 11:02
Modified
2024-08-03 23:10
Severity ?
EPSS score ?
Summary
A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.X (All versions < V9.1 SP2), SIMATIC PDM (All versions < V9.2 SP2), SIMATIC STEP 7 V5.X (All versions < V5.7), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 SP2 HF1). A directory containing metafiles relevant to devices' configurations has write permissions. An attacker could leverage this vulnerability by changing the content of certain metafiles and subsequently manipulate parameters or behavior of devices that would be later configured by the affected software.
References
▼ | URL | Tags | |
---|---|---|---|
productcert@siemens.com | https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf | Patch, Vendor Advisory |
Impacted products
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-03T23:10:30.952Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "SIMATIC PCS 7 V8.2 and earlier", "vendor": "Siemens", "versions": [ { "status": "affected", "version": "All versions" } ] }, { "product": "SIMATIC PCS 7 V9.X", "vendor": "Siemens", "versions": [ { "status": "affected", "version": "All versions \u003c V9.1 SP2" } ] }, { "product": "SIMATIC PDM", "vendor": "Siemens", "versions": [ { "status": "affected", "version": "All versions \u003c V9.2 SP2" } ] }, { "product": "SIMATIC STEP 7 V5.X", "vendor": "Siemens", "versions": [ { "status": "affected", "version": "All versions \u003c V5.7" } ] }, { "product": "SINAMICS STARTER (containing STEP 7 OEM version)", "vendor": "Siemens", "versions": [ { "status": "affected", "version": "All versions \u003c V5.4 SP2 HF1" } ] } ], "descriptions": [ { "lang": "en", "value": "A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.X (All versions \u003c V9.1 SP2), SIMATIC PDM (All versions \u003c V9.2 SP2), SIMATIC STEP 7 V5.X (All versions \u003c V5.7), SINAMICS STARTER (containing STEP 7 OEM version) (All versions \u003c V5.4 SP2 HF1). A directory containing metafiles relevant to devices\u0027 configurations has write permissions. An attacker could leverage this vulnerability by changing the content of certain metafiles and subsequently manipulate parameters or behavior of devices that would be later configured by the affected software." } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-732", "description": "CWE-732: Incorrect Permission Assignment for Critical Resource", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2022-08-10T11:17:00", "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77", "shortName": "siemens" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "productcert@siemens.com", "ID": "CVE-2021-31894", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "SIMATIC PCS 7 V8.2 and earlier", "version": { "version_data": [ { "version_value": "All versions" } ] } }, { "product_name": "SIMATIC PCS 7 V9.X", "version": { "version_data": [ { "version_value": "All versions \u003c V9.1 SP2" } ] } }, { "product_name": "SIMATIC PDM", "version": { "version_data": [ { "version_value": "All versions \u003c V9.2 SP2" } ] } }, { "product_name": "SIMATIC STEP 7 V5.X", "version": { "version_data": [ { "version_value": "All versions \u003c V5.7" } ] } }, { "product_name": "SINAMICS STARTER (containing STEP 7 OEM version)", "version": { "version_data": [ { "version_value": "All versions \u003c V5.4 SP2 HF1" } ] } } ] }, "vendor_name": "Siemens" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.X (All versions \u003c V9.1 SP2), SIMATIC PDM (All versions \u003c V9.2 SP2), SIMATIC STEP 7 V5.X (All versions \u003c V5.7), SINAMICS STARTER (containing STEP 7 OEM version) (All versions \u003c V5.4 SP2 HF1). A directory containing metafiles relevant to devices\u0027 configurations has write permissions. An attacker could leverage this vulnerability by changing the content of certain metafiles and subsequently manipulate parameters or behavior of devices that would be later configured by the affected software." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-732: Incorrect Permission Assignment for Critical Resource" } ] } ] }, "references": { "reference_data": [ { "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf", "refsource": "MISC", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf" } ] } } } }, "cveMetadata": { "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77", "assignerShortName": "siemens", "cveId": "CVE-2021-31894", "datePublished": "2021-07-13T11:02:58", "dateReserved": "2021-04-29T00:00:00", "dateUpdated": "2024-08-03T23:10:30.952Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-31894\",\"sourceIdentifier\":\"productcert@siemens.com\",\"published\":\"2021-07-13T11:15:09.603\",\"lastModified\":\"2022-08-10T20:28:00.357\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.X (All versions \u003c V9.1 SP2), SIMATIC PDM (All versions \u003c V9.2 SP2), SIMATIC STEP 7 V5.X (All versions \u003c V5.7), SINAMICS STARTER (containing STEP 7 OEM version) (All versions \u003c V5.4 SP2 HF1). A directory containing metafiles relevant to devices\u0027 configurations has write permissions. An attacker could leverage this vulnerability by changing the content of certain metafiles and subsequently manipulate parameters or behavior of devices that would be later configured by the affected software.\"},{\"lang\":\"es\",\"value\":\"Se ha identificado una vulnerabilidad en SIMATIC PCS 7 V8.2 y anteriores (Todas las versiones), SIMATIC PCS 7 V9.X (Todas las versiones anteriores a V9.1 SP2), SIMATIC PDM (Todas las versiones anteriores a V9.2 SP2), SIMATIC STEP 7 V5.X (Todas las versiones anteriores a V5.7), SINAMICS STARTER (que contiene la versi\u00f3n OEM de STEP 7) (Todas las versiones anteriores a V5.4 SP2 HF1). Un directorio que contiene metafichas relevantes para las configuraciones de los dispositivos tiene permisos de escritura. Un atacante podr\u00eda aprovechar esta vulnerabilidad cambiando el contenido de ciertos metaficheros y posteriormente manipular los par\u00e1metros o el comportamiento de los dispositivos que posteriormente ser\u00edan configurados por el software afectado\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":2.0,\"impactScore\":6.0}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:C/I:C/A:C\",\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\",\"baseScore\":7.2},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":3.9,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"productcert@siemens.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-732\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:simatic_pcs_7_firmware:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"8.2\",\"matchCriteriaId\":\"943D8B33-182B-4E6F-9318-D7AEC1CB09C5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:simatic_pcs_7_firmware:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EF59BB59-530E-41D7-8D5B-090C0FDBDDB1\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:siemens:simatic_pcs_7:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5EEFB170-B4B0-4A0E-8828-9491446033A3\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:simatic_pdm_firmware:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"311060D9-5691-4C4C-9CB6-14F25CBA4DB0\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:siemens:simatic_pdm:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E092B735-42D5-48D5-947B-288C0FA2E180\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:simatic_step_7_firmware:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.0\",\"versionEndExcluding\":\"5.7\",\"matchCriteriaId\":\"2CE4FB98-0276-4573-BAD7-04CE7F7E025E\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:siemens:simatic_step_7:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FB1FE00B-0613-4819-8D50-A5A0B6A190D1\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:sinamics_starter_firmware:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"5.4\",\"matchCriteriaId\":\"ACF25F6B-8DC4-4835-AE2F-2E03D3FA4C8C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"4D01AB88-A23C-4105-9D5C-DEAA8C2AAFE9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hf1:*:*:*:*:*:*\",\"matchCriteriaId\":\"F5953F96-3995-4974-9D73-EA32BF4DE53B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hf2:*:*:*:*:*:*\",\"matchCriteriaId\":\"D8793ACD-F4C9-4954-856A-ECB57A2BE990\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:sp1:*:*:*:*:*:*\",\"matchCriteriaId\":\"FABF5C1B-F79B-4CB4-9340-A0D61EF151A9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:sp1_hf1:*:*:*:*:*:*\",\"matchCriteriaId\":\"104FAEB7-9C81-49B2-8F06-7E5FDA87BD98\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:sp2:*:*:*:*:*:*\",\"matchCriteriaId\":\"5973C248-327A-44C4-B913-1327270E64D5\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:siemens:sinamics_starter:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C3E8B354-CB0D-40F1-BC2B-C2355974C2A9\"}]}]}],\"references\":[{\"url\":\"https://cert-portal.siemens.com/productcert/pdf/ssa-661034.pdf\",\"source\":\"productcert@siemens.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]}]}}" } }
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- 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.
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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