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[email protected]CVE-2021-31698

HistoryAug 12, 2021 - 10:15 p.m.

CVE-2021-31698

2021-08-1222:15:07

CWE-78

[email protected]

web.nvd.nist.gov

cve-2021-31698

quectel eg25-g

remote code execution

at command

shell metacharacters

security vulnerability

10 High

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

9.8 High

CVSS3

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

9.6 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

77.2%

JSON

Quectel EG25-G devices through 202006130814 allow executing arbitrary code remotely by using an AT command to place shell metacharacters in quectel_handle_fumo_cfg input in atfwd_daemon.

Affected configurations

NVD

Node

quecteleg25-g_firmwareRange≤202006130814

AND

quecteleg25-gMatch-

CPENameOperatorVersion
quectel:eg25-g_firmwarequectel eg25-g firmwarele202006130814 

CPE	Name	Operator	Version
quectel:eg25-g_firmware	quectel eg25-g firmware	le	202006130814

References

nns.ee/blog/2021/04/03/modem-rce.html

10 High

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

9.8 High

CVSS3

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

9.6 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

77.2%

JSON

Related for CVE-2021-31698

nvd1 prion1 cvelist1