CVE-2018-21093 : Certain NETGEAR devices are affected by a stack-based buffer overflow by an unau

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D8500 before 1.0.3.42, EX3700 before 1.0.0.70, EX3800 before 1.0.0.70, EX6000 before 1.0.0.30, EX6100 before 1.0.2.24, EX6120 before 1.0.0.40, EX6130 before 1.0.0.22, EX6150 before 1.0.0.42, EX6200 before 1.0.3.88, EX7000 before 1.0.0.66, R6250 before 1.0.4.26, R6300-2CXNAS before 1.0.3.60, R6300v2 before 1.0.4.28, R6400 before 1.0.1.36, R6400v2 before 1.0.2.52, R6700 before 1.0.1.46, R6900 before 1.0.1.46, R7000 before 1.0.9.28, R7000P before 1.3.1.44, R6900P before 1.3.1.44, R7100LG before 1.0.0.46, R7300 before 1.0.0.68, R7900 before 1.0.2.10, R8000 before 1.0.4.18, R8000P before 1.3.0.10, R7900P before 1.3.0.10, R8500 before 1.0.2.122, R8300 before 1.0.2.122, RBW30 before 2.1.2.6, WN2500RPv2 before 1.0.0.54, and WNR3500Lv2 before 1.2.0.56.

Published 2020-04-27 15:15:12

Updated 2020-05-04 15:36:41

Source MITRE

View at NVD, CVE.org

Vulnerability category: OverflowMemory Corruption

Products affected by CVE-2018-21093

Netgear » R6400 Firmware
Versions before (<) 1.0.1.36
cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6400 » Version: N/A
Netgear » R6400 Firmware
Versions before (<) 1.0.2.52
cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6400 » Version: V2
Netgear » R6700 Firmware
Versions before (<) 1.0.1.46
cpe:2.3:o:netgear:r6700_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6700 » Version: N/A
Netgear » R6900 Firmware
Versions before (<) 1.0.1.46
cpe:2.3:o:netgear:r6900_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6900 » Version: N/A
Netgear » R7000 Firmware
Versions before (<) 1.0.9.28
cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7000 » Version: N/A
Netgear » R7100lg Firmware
Versions before (<) 1.0.0.46
cpe:2.3:o:netgear:r7100lg_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7100lg » Version: N/A
Netgear » R7900 Firmware
Versions before (<) 1.0.2.10
cpe:2.3:o:netgear:r7900_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7900 » Version: N/A
Netgear » R8000 Firmware
Versions before (<) 1.0.4.18
cpe:2.3:o:netgear:r8000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R8000 » Version: N/A
Netgear » R6250 Firmware
Versions before (<) 1.0.4.26
cpe:2.3:o:netgear:r6250_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6250 » Version: N/A
Netgear » R6300 Firmware
Versions before (<) 1.0.4.28
cpe:2.3:o:netgear:r6300_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6300 » Version: V2
Netgear » Ex7000 Firmware
Versions before (<) 1.0.0.66
cpe:2.3:o:netgear:ex7000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex7000 » Version: N/A
Netgear » Wnr3500l Firmware
Versions before (<) 1.2.0.56
cpe:2.3:o:netgear:wnr3500l_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wnr3500l » Version: V2
Netgear » R8300 Firmware
Versions before (<) 1.0.2.122
cpe:2.3:o:netgear:r8300_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R8300 » Version: N/A
Netgear » R8500 Firmware
Versions before (<) 1.0.2.122
cpe:2.3:o:netgear:r8500_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R8500 » Version: N/A
Netgear » Ex6150 Firmware
Versions before (<) 1.0.0.42
cpe:2.3:o:netgear:ex6150_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6150 » Version: N/A
Netgear » R7000p Firmware
Versions before (<) 1.3.1.44
cpe:2.3:o:netgear:r7000p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7000p » Version: N/A
Netgear » R6900p Firmware
Versions before (<) 1.3.1.44
cpe:2.3:o:netgear:r6900p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6900p » Version: N/A
Netgear » Ex3700 Firmware
Versions before (<) 1.0.0.70
cpe:2.3:o:netgear:ex3700_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex3700 » Version: N/A
Netgear » Ex3800 Firmware
Versions before (<) 1.0.0.70
cpe:2.3:o:netgear:ex3800_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex3800 » Version: N/A
Netgear » Ex6100 Firmware
Versions before (<) 1.0.2.24
cpe:2.3:o:netgear:ex6100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6100 » Version: N/A
Netgear » Ex6120 Firmware
Versions before (<) 1.0.0.40
cpe:2.3:o:netgear:ex6120_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6120 » Version: N/A
Netgear » Ex6200 Firmware
Versions before (<) 1.0.3.88
cpe:2.3:o:netgear:ex6200_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6200 » Version: N/A
Netgear » D8500 Firmware
Versions before (<) 1.0.3.42
cpe:2.3:o:netgear:d8500_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » D8500 » Version: N/A
Netgear » Ex6130 Firmware
Versions before (<) 1.0.0.22
cpe:2.3:o:netgear:ex6130_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6130 » Version: N/A
Netgear » R7300 Firmware
Versions before (<) 1.0.0.68
cpe:2.3:o:netgear:r7300_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7300 » Version: N/A
Netgear » Ex6000 Firmware
Versions before (<) 1.0.0.30
cpe:2.3:o:netgear:ex6000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6000 » Version: N/A
Netgear » Wn2500rp Firmware
Versions before (<) 1.0.0.54
cpe:2.3:o:netgear:wn2500rp_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wn2500rp » Version: V2
Netgear » R7900p Firmware
Versions before (<) 1.3.0.10
cpe:2.3:o:netgear:r7900p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7900p » Version: N/A
Netgear » R8000p Firmware
Versions before (<) 1.3.0.10
cpe:2.3:o:netgear:r8000p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R8000p » Version: N/A
Netgear » R6300-2cxnas Firmware
Versions before (<) 1.0.3.60
cpe:2.3:o:netgear:r6300-2cxnas_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6300-2cxnas » Version: N/A
Netgear » Rbw30 Firmware
Versions before (<) 2.1.2.6
cpe:2.3:o:netgear:rbw30_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Rbw30 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2018-21093

EPSS FAQ

0.08%

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

~ 33 %

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

CVSS scores for CVE-2018-21093

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.8	MEDIUM	AV:A/AC:L/Au:N/C:P/I:P/A:P	6.5	6.4	NIST
Access Vector: Adjacent Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
6.4	MEDIUM	CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L	0.9	5.5	MITRE
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: Low
8.8	HIGH	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2018-21093

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-21093

https://kb.netgear.com/000060456/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-Modem-Routers-Wireless-Extenders-and-Orbi-Satellites-PSV-2017-2011

Security Advisory for Pre-Authentication Stack Overflow on Some Routers, Modem Routers, Wireless Extenders, and Orbi Satellites, PSV-2017-2011 | Answer | NETGEAR Support
Vendor Advisory

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Vulnerability Details : CVE-2018-21093

Products affected by CVE-2018-21093

Exploit prediction scoring system (EPSS) score for CVE-2018-21093

CVSS scores for CVE-2018-21093

CWE ids for CVE-2018-21093

References for CVE-2018-21093