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[email protected]CVE-2022-25213

HistoryMar 10, 2022 - 5:47 p.m.

CVE-2022-25213

2022-03-1017:47:00

CWE-798

NVD-CWE-Other

[email protected]

web.nvd.nist.gov

cve-2022-25213

physical access control

hard-coded credentials

root shell

uart port

das u-boot bios shell

6.8 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.6 Medium

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

45.5%

JSON

Improper physical access control and use of hard-coded credentials in /etc/passwd permits an attacker with physical access to obtain a root shell via an unprotected UART port on the device. The same port exposes an unauthenticated Das U-Boot BIOS shell.

CPENameOperatorVersion
phicomm:k2_firmwarephicomm k2 firmwarele22.5.9.163
phicomm:k3_firmwarephicomm k3 firmwarele21.5.37.246
phicomm:k3c_firmwarephicomm k3c firmwarele32.1.15.93
phicomm:k2g_firmwarephicomm k2g firmwarele22.6.3.20
phicomm:k2p_firmwarephicomm k2p firmwarele20.4.1.7

CPE	Name	Operator	Version
phicomm:k2_firmware	phicomm k2 firmware	le	22.5.9.163
phicomm:k3_firmware	phicomm k3 firmware	le	21.5.37.246
phicomm:k3c_firmware	phicomm k3c firmware	le	32.1.15.93
phicomm:k2g_firmware	phicomm k2g firmware	le	22.6.3.20
phicomm:k2p_firmware	phicomm k2p firmware	le	20.4.1.7

References

www.tenable.com/security/research/tra-2022-01

6.8 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.6 Medium

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

45.5%

JSON

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