CVE-2021-21968

A file 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 arbitrary file overwrite. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.

CVSS v3.0 8.3 HIGH
CVSS v2.0 6.8 MEDIUM

8.3^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.6 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

6.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1395	Exploit Technical Description Third Party Advisory

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Configurations

Configuration 1 (hide)

AND

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

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

Information

Published : 2022-02-04 15:15

Updated : 2022-09-30 19:13

NVD link : CVE-2021-21968

Mitre link : CVE-2021-21968

JSON object : View

CWE

CWE-20

Improper Input Validation

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Products Affected

sealevel

seaconnect_370w
seaconnect_370w_firmware

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