CVE-2019-20755 : Certain NETGEAR devices are affected by a stack-based buffer overflow by an auth

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6220 before 1.0.0.46, D6400 before 1.0.0.80, D7000v2 before 1.0.0.51, D8500 before 1.0.3.42, DGN2200v1 before 1.0.0.58, DGN2200B before 1.0.0.58, JNDR3000 before 1.0.0.24, RBW30 before 2.1.4.16, R6250 before 1.0.4.26, R6300v2 before 1.0.4.28, R6400 before 1.0.1.42, R6400v2 before 1.0.2.56, R6700 before 1.0.1.46, R6900 before 1.0.1.46, R7000 before 1.0.9.32, R6900P before 1.3.1.44, R7100LG before 1.0.0.46, R7300DST before 1.0.0.68, R7000P before 1.3.1.44, R7900 before 1.0.2.16, R8000P before 1.4.0.10, R7900P before 1.4.0.10, R8300 before 1.0.2.122, R8500 before 1.0.2.122, R8000 before 1.0.4.18, WNDR3400v3 before 1.0.1.22, WNDR4500v2 before 1.0.0.72, WNR3500Lv2 before 1.2.0.54, WN3100RP before 1.0.0.20, and WN2500RPv2 before 1.0.1.54.

Published 2020-04-16 22:15:13

Updated 2020-04-23 20:02:54

Source MITRE

View at NVD, CVE.org

Vulnerability category: OverflowMemory Corruption

Products affected by CVE-2019-20755

Netgear » R6400 Firmware
Versions before (<) 1.0.2.56
cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6400 » Version: V2
Netgear » R6400 Firmware
Versions before (<) 1.0.1.42
cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6400 » Version: N/A
Netgear » R6700 Firmware
Versions before (<) 1.0.1.46
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 (<) 1.0.9.32
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 » R7300dst Firmware
Versions before (<) 1.0.0.68
cpe:2.3:o:netgear:r7300dst_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7300dst » Version: N/A
Netgear » R7900 Firmware
Versions before (<) 1.0.2.16
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 » D6220 Firmware
Versions before (<) 1.0.0.46
cpe:2.3:o:netgear:d6220_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » D6220 » Version: N/A
Netgear » D6400 Firmware
Versions before (<) 1.0.0.80
cpe:2.3:o:netgear:d6400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » D6400 » Version: N/A
Netgear » R6250 Firmware
Versions before (<) 1.0.4.26
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 » Wndr4500 Firmware
Versions before (<) 1.0.0.72
cpe:2.3:o:netgear:wndr4500_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wndr4500 » Version: V2
Netgear » Dgn2200 Firmware
Versions before (<) 1.0.0.58
cpe:2.3:o:netgear:dgn2200_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Dgn2200 » Version: V1
Netgear » Wnr3500l Firmware
Versions before (<) 1.2.0.54
cpe:2.3:o:netgear:wnr3500l_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wnr3500l » Version: V2
Netgear » Dgn2200b Firmware
Versions before (<) 1.0.0.58
cpe:2.3:o:netgear:dgn2200b_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Dgn2200b » Version: N/A
Netgear » Wndr3400 Firmware
Versions before (<) 1.0.1.22
cpe:2.3:o:netgear:wndr3400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wndr3400 » Version: V3
Netgear » D7000 Firmware
Versions before (<) 1.0.0.51
cpe:2.3:o:netgear:d7000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » D7000 » 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 » 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 » 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 » Wn3100rp Firmware
Versions before (<) 1.0.0.20
cpe:2.3:o:netgear:wn3100rp_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wn3100rp » Version: N/A
Netgear » Wn2500rp Firmware
Versions before (<) 1.0.1.54
cpe:2.3:o:netgear:wn2500rp_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wn2500rp » Version: V2
Netgear » R7900p Firmware
Versions before (<) 1.4.0.10
cpe:2.3:o:netgear:r7900p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7900p » Version: N/A
Netgear » R8000p Firmware
Versions before (<) 1.4.0.10
cpe:2.3:o:netgear:r8000p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R8000p » Version: N/A
Netgear » Rbw30 Firmware
Versions before (<) 2.1.4.16
cpe:2.3:o:netgear:rbw30_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Rbw30 » Version: N/A
Netgear » Jndr3000 Firmware
Versions before (<) 1.0.0.24
cpe:2.3:o:netgear:jndr3000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Jndr3000 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2019-20755

EPSS FAQ

0.04%

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

~ 10 %

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

CVSS scores for CVE-2019-20755

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.2	MEDIUM	AV:A/AC:L/Au:S/C:P/I:P/A:P	5.1	6.4	NIST
Access Vector: Adjacent Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
6.8	MEDIUM	CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	0.9	5.9	MITRE
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
6.8	MEDIUM	CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	0.9	5.9	NIST
Attack Vector: Adjacent Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2019-20755

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-2019-20755

https://kb.netgear.com/000060627/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-Modem-Routers-Extenders-and-Orbi-Satellites-PSV-2018-0053

Security Advisory for Post-Authentication Stack Overflow on Some Routers, Modem Routers, Extenders, and Orbi Satellites, PSV-2018-0053 | Answer | NETGEAR Support
Vendor Advisory

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Vulnerability Details : CVE-2019-20755

Products affected by CVE-2019-20755

Exploit prediction scoring system (EPSS) score for CVE-2019-20755

CVSS scores for CVE-2019-20755

CWE ids for CVE-2019-20755

References for CVE-2019-20755