CVE-2018-21162 : Certain NETGEAR devices are affected by command injection by an unauthenticated

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D6400 before 1.0.0.78, EX6200 before 1.0.3.86, EX7000 before 1.0.0.64, R6250 before 1.0.4.8, R6300v2 before 1.0.4.6, R6400 before 1.0.1.12, R6700 before 1.0.1.16, R7000 before 1.0.7.10, R7100LG before 1.0.0.42, R7300DST before 1.0.0.44, R7900 before 1.0.1.12, R8000 before 1.0.3.36, R8300 before 1.0.2.74, R8500 before 1.0.2.74, WNDR3400v3 before 1.0.1.14, and WNR3500Lv2 before 1.2.0.48.

Published 2020-04-23 21:15:12

Updated 2020-05-01 16:16:51

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2018-21162

Netgear » R6400 Firmware
Versions before (<) 1.0.1.12
cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6400 » Version: N/A
Netgear » R6700 Firmware
Versions before (<) 1.0.1.16
cpe:2.3:o:netgear:r6700_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6700 » Version: N/A
Netgear » R7000 Firmware
Versions before (<) 1.0.7.10
cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7000 » Version: N/A
Netgear » R7100lg Firmware
Versions before (<) 1.0.0.42
cpe:2.3:o:netgear:r7100lg_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7100lg » Version: N/A
Netgear » R7300dst Firmware
Versions before (<) 1.0.0.44
cpe:2.3:o:netgear:r7300dst_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7300dst » Version: N/A
Netgear » R7900 Firmware
Versions before (<) 1.0.1.12
cpe:2.3:o:netgear:r7900_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7900 » Version: N/A
Netgear » R8000 Firmware
Versions before (<) 1.0.3.36
cpe:2.3:o:netgear:r8000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R8000 » Version: N/A
Netgear » D6400 Firmware
Versions before (<) 1.0.0.78
cpe:2.3:o:netgear:d6400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » D6400 » Version: N/A
Netgear » R6250 Firmware
Versions before (<) 1.0.4.8
cpe:2.3:o:netgear:r6250_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6250 » Version: N/A
Netgear » R6300 Firmware
Versions before (<) 1.0.4.6
cpe:2.3:o:netgear:r6300_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6300 » Version: V2
Netgear » Ex7000 Firmware
Versions before (<) 1.0.0.64
cpe:2.3:o:netgear:ex7000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex7000 » Version: N/A
Netgear » Wnr3500l Firmware
Versions before (<) 1.2.0.48
cpe:2.3:o:netgear:wnr3500l_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wnr3500l » Version: V2
Netgear » Wndr3400 Firmware
Versions before (<) 1.0.1.14
cpe:2.3:o:netgear:wndr3400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wndr3400 » Version: V3
Netgear » R8300 Firmware
Versions before (<) 1.0.2.74
cpe:2.3:o:netgear:r8300_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R8300 » Version: N/A
Netgear » R8500 Firmware
Versions before (<) 1.0.2.74
cpe:2.3:o:netgear:r8500_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R8500 » Version: N/A
Netgear » Ex6200 Firmware
Versions before (<) 1.0.3.86
cpe:2.3:o:netgear:ex6200_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6200 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2018-21162

EPSS FAQ

0.61%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 76 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-21162

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.8	HIGH	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	MITRE
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2018-21162

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-21162

https://kb.netgear.com/000059147/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Gateways-Routers-and-Extenders-PSV-2016-0074

Security Advisory for Pre-Authentication Command Injection on Some Gateways, Routers, and Extenders, PSV-2016-0074 | Answer | NETGEAR Support
Vendor Advisory

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Vulnerability Details : CVE-2018-21162

Products affected by CVE-2018-21162

Exploit prediction scoring system (EPSS) score for CVE-2018-21162

CVSS scores for CVE-2018-21162

CWE ids for CVE-2018-21162

References for CVE-2018-21162