CVE-2021-20998 - OpenCVE

In multiple managed switches by WAGO in different versions without authorization and with specially crafted packets it is possible to create users.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

Vendors & Products
CPE Configurations

Vendors	Products
Wago	0852-1305\/000-001 Firmware 0852-1505\/000-001 0852-1305\/000-001 0852-1505 Firmware 0852-1305 0852-1305 Firmware 0852-0303 0852-1505\/000-001 Firmware 0852-1505 0852-0303 Firmware

Configuration 1 [-]

AND

cpe:2.3:o:wago:0852-0303_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:wago:0852-0303:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND

cpe:2.3:o:wago:0852-1305_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:wago:0852-1305:-:*:*:*:*:*:*:*

Configuration 3 [-]

AND

cpe:2.3:o:wago:0852-1505_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:wago:0852-1505:-:*:*:*:*:*:*:*

Configuration 4 [-]

AND

cpe:2.3:o:wago:0852-1305\/000-001_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:wago:0852-1305\/000-001:-:*:*:*:*:*:*:*

Configuration 5 [-]

AND

cpe:2.3:o:wago:0852-1505\/000-001_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:wago:0852-1505\/000-001:-:*:*:*:*:*:*:*

References

Link	Resource
https://cert.vde.com/en-us/advisories/vde-2021-013	Third Party Advisory

History

No history.

MITRE Information

Status: PUBLISHED

Assigner: CERTVDE

Published: 2021-05-05T00:00:00

Updated: 2021-05-13T13:45:25

Reserved: 2020-12-17T00:00:00

Link: CVE-2021-20998

JSON object: View

NVD Information

Status : Analyzed

Published: 2021-05-13T14:15:18.113

Modified: 2021-05-20T20:03:56.123

Link: CVE-2021-20998

JSON object: View

Redhat Information

No data.

CWE

CWE-306

{"containers": {"cna": {"affected": [{"product": "0852-0303", "vendor": "WAGO", "versions": [{"lessThanOrEqual": "V1.2.3.S0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "0852-1305", "vendor": "WAGO", "versions": [{"lessThanOrEqual": "V1.1.7.S0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "0852-1505", "vendor": "WAGO", "versions": [{"lessThanOrEqual": "V1.1.6.S0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "0852-1305/000-001", "vendor": "WAGO", "versions": [{"lessThanOrEqual": "V1.0.4.S0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "0852-1505/000-001", "vendor": "WAGO", "versions": [{"lessThanOrEqual": "V1.0.4.S0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Dr. Tobias Augustin and Stephan Tigges of IKS \u2013 Institut f\u00fcr Kooperative Systeme GmbH, Kai Gaul and Jan R\u00fcbenach of ABO Wind AG, coordinated by CERT@VDE"}], "datePublic": "2021-05-05T00:00:00", "descriptions": [{"lang": "en", "value": "In multiple managed switches by WAGO in different versions without authorization and with specially crafted packets it is possible to create users."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-306", "description": "CWE-306 Missing Authentication for Critical Function", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-05-13T13:45:25", "orgId": "270ccfa6-a436-4e77-922e-914ec3a9685c", "shortName": "CERTVDE"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://cert.vde.com/en-us/advisories/vde-2021-013"}], "solutions": [{"lang": "en", "value": "The Web-Based Management is only needed during installation and commissioning, not during normal operations. It is recommended to disable the web server after commissioning. The Command Line Interface (CLI) is an alternative for commissioning the device. This is the easiest and securest way to protect your device from the listed vulnerabilities.\n\nRegardless of the action described above, the vulnerabilities are fixed with following firmware releases:\nItem number [FW version]\n0852-0303 (HW < 3)* [V1.2.5.S0] Detailed information about the hardware version is described in the installation guide.\n0852-0303 (HW >=3)* [V1.2.3.S1] Detailed information about the hardware version is described in the installation guide.\n0852-1305 [V1.1.8.S0]\n0852-1505 [V1.1.7.S0]\n0852-1305/000-001 [V1.1.4.S0]\n0852-1505/000-001 [V1.1.4.S0]"}], "source": {"advisory": "VDE-2021-013", "defect": ["VDE-2021-013"], "discovery": "EXTERNAL"}, "title": "WAGO: Managed Switches: Unauthorized creation of user accounts", "workarounds": [{"lang": "en", "value": "Disable the web server of the device.\nUse the CLI interface of the device.\nUpdate to the latest firmware.\nRestrict network access to the device.\nDo not directly connect the device to the internet."}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "info@cert.vde.com", "DATE_PUBLIC": "2021-05-05T10:00:00.000Z", "ID": "CVE-2021-20998", "STATE": "PUBLIC", "TITLE": "WAGO: Managed Switches: Unauthorized creation of user accounts"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "0852-0303", "version": {"version_data": [{"version_affected": "<=", "version_value": "V1.2.3.S0"}]}}, {"product_name": "0852-1305", "version": {"version_data": [{"version_affected": "<=", "version_value": "V1.1.7.S0"}]}}, {"product_name": "0852-1505", "version": {"version_data": [{"version_affected": "<=", "version_value": "V1.1.6.S0"}]}}, {"product_name": "0852-1305/000-001", "version": {"version_data": [{"version_affected": "<=", "version_value": "V1.0.4.S0"}]}}, {"product_name": "0852-1505/000-001", "version": {"version_data": [{"version_affected": "<=", "version_value": "V1.0.4.S0"}]}}]}, "vendor_name": "WAGO"}]}}, "credit": [{"lang": "eng", "value": "Dr. Tobias Augustin and Stephan Tigges of IKS \u2013 Institut f\u00fcr Kooperative Systeme GmbH, Kai Gaul and Jan R\u00fcbenach of ABO Wind AG, coordinated by CERT@VDE"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In multiple managed switches by WAGO in different versions without authorization and with specially crafted packets it is possible to create users."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-306 Missing Authentication for Critical Function"}]}]}, "references": {"reference_data": [{"name": "https://cert.vde.com/en-us/advisories/vde-2021-013", "refsource": "CONFIRM", "url": "https://cert.vde.com/en-us/advisories/vde-2021-013"}]}, "solution": [{"lang": "en", "value": "The Web-Based Management is only needed during installation and commissioning, not during normal operations. It is recommended to disable the web server after commissioning. The Command Line Interface (CLI) is an alternative for commissioning the device. This is the easiest and securest way to protect your device from the listed vulnerabilities.\n\nRegardless of the action described above, the vulnerabilities are fixed with following firmware releases:\nItem number [FW version]\n0852-0303 (HW < 3)* [V1.2.5.S0] Detailed information about the hardware version is described in the installation guide.\n0852-0303 (HW >=3)* [V1.2.3.S1] Detailed information about the hardware version is described in the installation guide.\n0852-1305 [V1.1.8.S0]\n0852-1505 [V1.1.7.S0]\n0852-1305/000-001 [V1.1.4.S0]\n0852-1505/000-001 [V1.1.4.S0]"}], "source": {"advisory": "VDE-2021-013", "defect": ["VDE-2021-013"], "discovery": "EXTERNAL"}, "work_around": [{"lang": "en", "value": "Disable the web server of the device.\nUse the CLI interface of the device.\nUpdate to the latest firmware.\nRestrict network access to the device.\nDo not directly connect the device to the internet."}]}}}, "cveMetadata": {"assignerOrgId": "270ccfa6-a436-4e77-922e-914ec3a9685c", "assignerShortName": "CERTVDE", "cveId": "CVE-2021-20998", "datePublished": "2021-05-05T00:00:00", "dateReserved": "2020-12-17T00:00:00", "dateUpdated": "2021-05-13T13:45:25", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.0"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:wago:0852-0303_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "F5CF4A95-5671-4AA5-8F27-B16A681AE82E", "versionEndIncluding": "1.2.3.s0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:wago:0852-0303:-:*:*:*:*:*:*:*", "matchCriteriaId": "3611D06D-0A64-4817-9142-5F8B9B3CB763", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:wago:0852-1305_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "A48F91CD-922D-4E76-AC7A-E132F9E26A79", "versionEndIncluding": "1.1.7.s0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:wago:0852-1305:-:*:*:*:*:*:*:*", "matchCriteriaId": "9FEC92F0-ED21-4BF9-AC9A-424EE913A6E7", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:wago:0852-1505_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "BDF3F15D-6BF7-4C47-8552-9A9275FD5066", "versionEndIncluding": "1.1.6.s0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:wago:0852-1505:-:*:*:*:*:*:*:*", "matchCriteriaId": "991752B3-8BE0-4D10-9240-51B0E4050358", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:wago:0852-1305\\/000-001_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "2BF24302-7E5C-41D7-AB57-064B94D7AF00", "versionEndIncluding": "1.0.4.s0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:wago:0852-1305\\/000-001:-:*:*:*:*:*:*:*", "matchCriteriaId": "9A91A50A-2BBB-4667-8764-C3D6C7717C3B", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:wago:0852-1505\\/000-001_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "A28B4348-CA65-406A-BDD7-748E5ED9C2B2", "versionEndIncluding": "1.0.4.s0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:wago:0852-1505\\/000-001:-:*:*:*:*:*:*:*", "matchCriteriaId": "F7F57D47-2310-4389-BE4C-7545A7DB8C07", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "descriptions": [{"lang": "en", "value": "In multiple managed switches by WAGO in different versions without authorization and with specially crafted packets it is possible to create users."}, {"lang": "es", "value": "En m\u00faltiples switches administrados por WAGO en diferentes versiones sin autorizaci\u00f3n y con paquetes especialmente dise\u00f1ados es posible crear usuarios"}], "id": "CVE-2021-20998", "lastModified": "2021-05-20T20:03:56.123", "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"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 6.0, "source": "info@cert.vde.com", "type": "Secondary"}]}, "published": "2021-05-13T14:15:18.113", "references": [{"source": "info@cert.vde.com", "tags": ["Third Party Advisory"], "url": "https://cert.vde.com/en-us/advisories/vde-2021-013"}], "sourceIdentifier": "info@cert.vde.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-306"}], "source": "info@cert.vde.com", "type": "Secondary"}]}