Stack-based buffer overflow in NETGEAR Routers and WiFi Systems

1) Stack-based buffer overflow

EUVDB-ID: #VU64814

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

RAXE500: before 1.0.8.70

RAXE450: before 1.0.8.70

XR1000: before 1.0.0.64

MK83: before 1.1.6.14

MK62: before 1.1.6.122

R6400v2: before 1.0.4.122

R7850: before 1.0.5.76

R6700v3: before 1.0.4.122

R7000P: before 1.3.3.148

R6900P: before 1.3.3.148

R8000: before 1.0.4.76

RS400: before 1.5.1.86

XR300: before 1.0.3.68

DC112A: before 1.0.0.64

R6400: before 1.0.1.76

WNDR3400v3: before 1.0.1.44

R7000: before 1.0.11.130

MR60: before 1.1.6.122

MR80: before 1.1.6.14

MS60: before 1.1.6.122

MS80: before 1.1.6.14

External links

http://kb.netgear.com/000065043/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-WiFi-Systems-PSV-2021-0187

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.