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TalosCVE-2021-21968

HistoryFeb 04, 2022 - 11:15 p.m.

CVE-2021-21968

2022-02-0423:15:10

CWE-20

talos

web.nvd.nist.gov

cve-2021-21968

file write vulnerability

ota update

sealevel systems

seaconnect 370w

mqtt payload

man-in-the-middle attack

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

AI Score

8.1

Confidence

High

EPSS

0.002

Percentile

52.1%

JSON

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.

Affected configurations

Nvd

Vulners

Node

sealevelseaconnect_370w_firmwareMatch1.3.34

AND

sealevelseaconnect_370wMatch-

VendorProductVersionCPE
sealevelseaconnect_370w_firmware1.3.34cpe:2.3:o:sealevel:seaconnect_370w_firmware:1.3.34:*:*:*:*:*:*:*
sealevelseaconnect_370w-cpe:2.3:h:sealevel:seaconnect_370w:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
sealevel	seaconnect_370w_firmware	1.3.34	cpe:2.3:o:sealevel:seaconnect_370w_firmware:1.3.34:::::::*
sealevel	seaconnect_370w	-	cpe:2.3:h:sealevel:seaconnect_370w:-:::::::*

CNA Affected

[
  {
    "product": "Sealevel",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Sealevel Systems, Inc. SeaConnect 370W v1.3.34"
      }
    ]
  }
]

References

talosintelligence.com/vulnerability_reports/TALOS-2021-1395

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

AI Score

8.1

Confidence

High

EPSS

0.002

Percentile

52.1%

JSON

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