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MitreCVE-2021-27944

HistoryAug 26, 2021 - 12:15 p.m.

CVE-2021-27944

2021-08-2612:15:07

CWE-78

mitre

web.nvd.nist.gov

vizio

smart tvs

vulnerability

cve-2021-27944

os command execution

access controls

api

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.3

Confidence

High

EPSS

0.008

Percentile

81.8%

JSON

Several high privileged APIs on the Vizio P65-F1 6.0.31.4-2 and E50x-E1 10.0.31.4-2 Smart TVs do not enforce access controls, allowing an unauthenticated threat actor to access privileged functionality, leading to OS command execution. The specific attack methodology is a file upload.

Affected configurations

Nvd

Node

viziop65-f1Match-

AND

viziop65-f1_firmwareMatch6.0.31.4-2

Node

vizioe50x-e1Match-

AND

vizioe50x-e1_firmwareMatch10.0.31.4-2

VendorProductVersionCPE
viziop65-f1-cpe:2.3:h:vizio:p65-f1:-:*:*:*:*:*:*:*
viziop65-f1_firmware6.0.31.4-2cpe:2.3:o:vizio:p65-f1_firmware:6.0.31.4-2:*:*:*:*:*:*:*
vizioe50x-e1-cpe:2.3:h:vizio:e50x-e1:-:*:*:*:*:*:*:*
vizioe50x-e1_firmware10.0.31.4-2cpe:2.3:o:vizio:e50x-e1_firmware:10.0.31.4-2:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
vizio	p65-f1	-	cpe:2.3:h:vizio:p65-f1:-:::::::*
vizio	p65-f1_firmware	6.0.31.4-2	cpe:2.3:o:vizio:p65-f1_firmware:6.0.31.4-2:::::::*
vizio	e50x-e1	-	cpe:2.3:h:vizio:e50x-e1:-:::::::*
vizio	e50x-e1_firmware	10.0.31.4-2	cpe:2.3:o:vizio:e50x-e1_firmware:10.0.31.4-2:::::::*

References

www.l9group.com/advisories/vizio-tv-unauthenticated-remote-code-execution

www.vizio.com

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.3

Confidence

High

EPSS

0.008

Percentile

81.8%

JSON

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