CVE-2021-20998

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

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

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

Advertisement

Configurations

Configuration 1 (hide)

AND

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

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

Configuration 2 (hide)

AND

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

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

Configuration 3 (hide)

AND

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

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

Configuration 4 (hide)

AND

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

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

Configuration 5 (hide)

AND

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

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

Information

Published : 2021-05-13 07:15

Updated : 2021-05-20 13:03

NVD link : CVE-2021-20998

Mitre link : CVE-2021-20998

JSON object : View

CWE

CWE-306

Missing Authentication for Critical Function

Advertisement

Products Affected

wago

0852-1505\/000-001_firmware
0852-0303
0852-1305\/000-001
0852-1505_firmware
0852-1305
0852-1505
0852-1505\/000-001
0852-0303_firmware
0852-1305_firmware
0852-1305\/000-001_firmware

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://cert.vde.com/en-us/advisories/vde-2021-013", "name": "https://cert.vde.com/en-us/advisories/vde-2021-013", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-306"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-20998", "ASSIGNER": "info@cert.vde.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "HIGH", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}}, "publishedDate": "2021-05-13T14:15Z", "configurations": {"nodes": [{"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:wago:0852-0303_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.2.3.s0"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:wago:0852-0303:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:wago:0852-1305_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.1.7.s0"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:wago:0852-1305:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:wago:0852-1505_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.1.6.s0"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:wago:0852-1505:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:wago:0852-1305\\/000-001_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.0.4.s0"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:wago:0852-1305\\/000-001:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:wago:0852-1505\\/000-001_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.0.4.s0"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:h:wago:0852-1505\\/000-001:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-05-20T20:03Z"}