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ID

VAR-202202-1220


CVE

CVE-2021-21959


TITLE

Sealevel Systems SeaConnect 370W Trust Management Issue Vulnerability

Trust: 1.2

sources: CNVD: CNVD-2022-10698 // CNNVD: CNNVD-202202-095

DESCRIPTION

A misconfiguration exists in the MQTTS functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. This misconfiguration significantly simplifies a man-in-the-middle attack, which directly leads to control of device functionality. SeaConnect 370W Exists in a certificate validation vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. Used to remotely monitor and control the status of the actual I/O process

Trust: 2.7

sources: NVD: CVE-2021-21959 // JVNDB: JVNDB-2022-004778 // CNVD: CNVD-2022-10698 // CNNVD: CNNVD-202202-095

IOT TAXONOMY

category:['IoT']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2022-10698

AFFECTED PRODUCTS

vendor:sealevelmodel:seaconnect 370wscope:eqversion:1.3.34

Trust: 1.0

vendor:sealevelmodel:seaconnect 370wscope:eqversion: -

Trust: 0.8

vendor:sealevelmodel:seaconnect 370wscope:eqversion:seaconnect 370w firmware 1.3.34

Trust: 0.8

vendor:sealevelmodel:systems seaconnect 370wscope:eqversion:v1.3.34

Trust: 0.6

sources: CNVD: CNVD-2022-10698 // JVNDB: JVNDB-2022-004778 // NVD: CVE-2021-21959

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-21959
value: HIGH

Trust: 1.0

talos-cna@cisco.com: CVE-2021-21959
value: HIGH

Trust: 1.0

NVD: CVE-2021-21959
value: HIGH

Trust: 0.8

CNVD: CNVD-2022-10698
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202202-095
value: HIGH

Trust: 0.6

nvd@nist.gov: CVE-2021-21959
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:M/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

CNVD: CNVD-2022-10698
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:M/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2021-21959
baseSeverity: HIGH
baseScore: 8.1
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.2
impactScore: 5.9
version: 3.1

Trust: 1.0

talos-cna@cisco.com: CVE-2021-21959
baseSeverity: HIGH
baseScore: 7.7
vectorString: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: LOW
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.2
impactScore: 5.5
version: 3.0

Trust: 1.0

NVD: CVE-2021-21959
baseSeverity: HIGH
baseScore: 8.1
vectorString: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2022-10698 // JVNDB: JVNDB-2022-004778 // CNNVD: CNNVD-202202-095 // NVD: CVE-2021-21959 // NVD: CVE-2021-21959

PROBLEMTYPE DATA

problemtype:CWE-295

Trust: 1.0

problemtype:Illegal certificate verification (CWE-295) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2022-004778 // NVD: CVE-2021-21959

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202202-095

TYPE

trust management problem

Trust: 0.6

sources: CNNVD: CNNVD-202202-095

PATCH

title:Top Pageurl:https://www.sealevel.com/

Trust: 0.8

title:Patch for Sealevel Systems SeaConnect 370W Trust Management Issue Vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/319866

Trust: 0.6

title:Sealevel Systems SeaConnect 370W Repair measures for trust management problem vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=180566

Trust: 0.6

sources: CNVD: CNVD-2022-10698 // JVNDB: JVNDB-2022-004778 // CNNVD: CNNVD-202202-095

EXTERNAL IDS

db:NVDid:CVE-2021-21959

Trust: 3.8

db:TALOSid:TALOS-2021-1388

Trust: 3.0

db:JVNDBid:JVNDB-2022-004778

Trust: 0.8

db:CNVDid:CNVD-2022-10698

Trust: 0.6

db:CNNVDid:CNNVD-202202-095

Trust: 0.6

sources: CNVD: CNVD-2022-10698 // JVNDB: JVNDB-2022-004778 // CNNVD: CNNVD-202202-095 // NVD: CVE-2021-21959

REFERENCES

url:https://talosintelligence.com/vulnerability_reports/talos-2021-1388

Trust: 3.6

url:https://nvd.nist.gov/vuln/detail/cve-2021-21959

Trust: 1.4

sources: CNVD: CNVD-2022-10698 // JVNDB: JVNDB-2022-004778 // CNNVD: CNNVD-202202-095 // NVD: CVE-2021-21959

CREDITS

Discovered by Francesco Benvenuto and Matt Wiseman of Cisco Talos.

Trust: 0.6

sources: CNNVD: CNNVD-202202-095

SOURCES

db:CNVDid:CNVD-2022-10698
db:JVNDBid:JVNDB-2022-004778
db:CNNVDid:CNNVD-202202-095
db:NVDid:CVE-2021-21959

LAST UPDATE DATE

2024-08-14T15:37:42.727000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2022-10698date:2022-02-16T00:00:00
db:JVNDBid:JVNDB-2022-004778date:2023-05-01T08:33:00
db:CNNVDid:CNNVD-202202-095date:2022-02-16T00:00:00
db:NVDid:CVE-2021-21959date:2022-07-29T16:38:22.870

SOURCES RELEASE DATE

db:CNVDid:CNVD-2022-10698date:2022-02-16T00:00:00
db:JVNDBid:JVNDB-2022-004778date:2023-05-01T00:00:00
db:CNNVDid:CNNVD-202202-095date:2022-02-01T00:00:00
db:NVDid:CVE-2021-21959date:2022-02-04T23:15:10.443