CVE-2021-34991

Published: Nov 15, 2021Modified: Nov 21, 2024

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: NVD

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6400v2 1.0.4.106_10.0.80 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the UPnP service, which listens on TCP port 5000 by default. When parsing the uuid request header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-14110.

Affected (44)

Products: Netgear: Ex3700 Firmware, Ex3800 Firmware, Ex6120 Firmware, Ex6130 Firmware, R6400 Firmware, R6400v2 Firmware, R6700v3 Firmware, R6900p Firmware, R7000 Firmware, R7000p Firmware, R7100lg Firmware, R7850 Firmware, R7900p Firmware, R7960p Firmware, R8000 Firmware, R8000p Firmware, R8300 Firmware, R8500 Firmware, Rax15 Firmware, Rax20 Firmware, Rax200 Firmware, Rax35v2 Firmware, Rax38v2 Firmware, Rax40v2 Firmware, Rax42 Firmware, Rax43 Firmware, Rax45 Firmware, Rax48 Firmware, Rax50 Firmware, Rax50s Firmware, Rax75 Firmware, Rax80 Firmware, Raxe450 Firmware, Raxe500 Firmware, Rs400 Firmware, Wndr3400v3 Firmware, Wnr3500lv2 Firmware, Xr300 Firmware, D6220 Firmware, D6400 Firmware, D7000v2 Firmware, Dgn2200v4 Firmware, Dc112a Firmware, Cax80 Firmware

44 products

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Ex3700 Firmware	Before 1.0.0.94

Running on/with	Platform Versions
Netgear Ex3700	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Ex3800 Firmware	Before 1.0.0.94

Running on/with	Platform Versions
Netgear Ex3800	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Ex6120 Firmware	Before 1.0.0.66

Running on/with	Platform Versions
Netgear Ex6120	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Ex6130 Firmware	Before 1.0.0.66

Running on/with	Platform Versions
Netgear Ex6130	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R6400 Firmware	Before 1.0.1.76

Running on/with	Platform Versions
Netgear R6400	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R6400v2 Firmware	Before 1.0.4.120

Running on/with	Platform Versions
Netgear R6400v2	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R6700v3 Firmware	Before 1.0.4.120

Running on/with	Platform Versions
Netgear R6700v3	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R6900p Firmware	Before 1.3.3.142

Running on/with	Platform Versions
Netgear R6900p	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R7000 Firmware	Before 1.0.11.128

Running on/with	Platform Versions
Netgear R7000	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R7000p Firmware	Before 1.3.3.142

Running on/with	Platform Versions
Netgear R7000p	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R7100lg Firmware	Before 1.0.0.72

Running on/with	Platform Versions
Netgear R7100lg	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R7850 Firmware	Before 1.0.5.76

Running on/with	Platform Versions
Netgear R7850	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R7900p Firmware	Before 1.4.2.84

Running on/with	Platform Versions
Netgear R7900p	All versions

Configuration N

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R7960p Firmware	Before 1.4.2.84

Running on/with	Platform Versions
Netgear R7960p	All versions

Configuration O

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R8000 Firmware	Before 1.0.4.76

Running on/with	Platform Versions
Netgear R8000	All versions

Configuration P

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R8000p Firmware	Before 1.4.2.84

Running on/with	Platform Versions
Netgear R8000p	All versions

Configuration Q

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R8300 Firmware	Before 1.0.2.156

Running on/with	Platform Versions
Netgear R8300	All versions

Configuration R

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear R8500 Firmware	Before 1.0.2.156

Running on/with	Platform Versions
Netgear R8500	All versions

Configuration S

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax15 Firmware	Before 1.0.4.100

Running on/with	Platform Versions
Netgear Rax15	All versions

Configuration T

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax20 Firmware	Before 1.0.4.100

Running on/with	Platform Versions
Netgear Rax20	All versions

Configuration U

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax200 Firmware	Before 1.0.5.132

Running on/with	Platform Versions
Netgear Rax200	All versions

Configuration V

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax35v2 Firmware	Before 1.0.4.100

Running on/with	Platform Versions
Netgear Rax35v2	All versions

Configuration W

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax38v2 Firmware	Before 1.0.4.100

Running on/with	Platform Versions
Netgear Rax38v2	All versions

Configuration X

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax40v2 Firmware	Before 1.0.4.100

Running on/with	Platform Versions
Netgear Rax40v2	All versions

Configuration Y

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax42 Firmware	Before 1.0.4.100

Running on/with	Platform Versions
Netgear Rax42	All versions

Configuration Z

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax43 Firmware	Before 1.0.4.100

Running on/with	Platform Versions
Netgear Rax43	All versions

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax45 Firmware	Before 1.0.4.100

Running on/with	Platform Versions
Netgear Rax45	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax48 Firmware	Before 1.0.4.100

Running on/with	Platform Versions
Netgear Rax48	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax50 Firmware	Before 1.0.4.100

Running on/with	Platform Versions
Netgear Rax50	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax50s Firmware	Before 1.0.4.100

Running on/with	Platform Versions
Netgear Rax50s	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax75 Firmware	Before 1.0.5.132

Running on/with	Platform Versions
Netgear Rax75	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rax80 Firmware	Before 1.0.5.132

Running on/with	Platform Versions
Netgear Rax80	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Raxe450 Firmware	Before 1.0.8.70

Running on/with	Platform Versions
Netgear Raxe450	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Raxe500 Firmware	Before 1.0.8.70

Running on/with	Platform Versions
Netgear Raxe500	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Rs400 Firmware	Before 1.5.1.80

Running on/with	Platform Versions
Netgear Rs400	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Wndr3400v3 Firmware	Before 1.0.1.42

Running on/with	Platform Versions
Netgear Wndr3400v3	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Wnr3500lv2 Firmware	Before 1.2.0.70

Running on/with	Platform Versions
Netgear Wnr3500lv2	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Xr300 Firmware	Before 1.0.3.68

Running on/with	Platform Versions
Netgear Xr300	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear D6220 Firmware	Before 1.0.0.76

Running on/with	Platform Versions
Netgear D6220	All versions

Configuration N

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear D6400 Firmware	Before 1.0.0.108

Running on/with	Platform Versions
Netgear D6400	All versions

Configuration O

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear D7000v2 Firmware	Before 1.0.0.76

Running on/with	Platform Versions
Netgear D7000v2	All versions

Configuration P

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Dgn2200v4 Firmware	Before 1.0.0.126

Running on/with	Platform Versions
Netgear Dgn2200v4	All versions

Configuration Q

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Dc112a Firmware	Before 1.0.0.62

Running on/with	Platform Versions
Netgear Dc112a	All versions

Configuration R

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netgear Cax80 Firmware	Before 2.1.3.5

Running on/with	Platform Versions
Netgear Cax80	All versions

Related CWEs

CWE-121

Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

CWE-787

Out-of-bounds Write

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

References (4)

https://kb.netgear.com/000064361/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0168

Source: zdi-disclosures@trendmicro.com

Vendor Advisory

https://www.zerodayinitiative.com/advisories/ZDI-21-1303/

Source: zdi-disclosures@trendmicro.com

Third Party AdvisoryVDB Entry

https://kb.netgear.com/000064361/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0168

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

https://www.zerodayinitiative.com/advisories/ZDI-21-1303/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party AdvisoryVDB Entry

Timeline

No history available yet.