CVE-2021-21967

An out-of-bounds write vulnerability exists in the OTA update task functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted MQTT payload can lead to denial of service. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.

CVSS v3 5.9 MEDIUM
CVSS v2.0 7.1 HIGH

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.1^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:C

Exploitability : 8.6 / Impact : 6.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1394	Exploit Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1394	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:sealevel:seaconnect_370w_firmware:1.3.34:*:*:*:*:*:*:*

cpe:2.3:h:sealevel:seaconnect_370w:-:*:*:*:*:*:*:*

History

21 Nov 2024, 05:49

Type	Values Removed	Values Added
References	~~() https://talosintelligence.com/vulnerability_reports/TALOS-2021-1394 - Exploit, Third Party Advisory~~	() https://talosintelligence.com/vulnerability_reports/TALOS-2021-1394 - Exploit, Third Party Advisory

Information

Published : 2022-04-14 20:15

Updated : 2024-11-21 05:49

NVD link : CVE-2021-21967

Mitre link : CVE-2021-21967

CVE.ORG link : CVE-2021-21967

JSON object : View

Products Affected

sealevel

seaconnect_370w_firmware
seaconnect_370w

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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