Stored cross-site scripting in NETGEAR Routers

1) Stored cross-site scripting

EUVDB-ID: #VU77787

Risk: Low

CVSSv3.1: 5.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

LAX20: before 1.1.6.34

RAX43: before 1.0.10.110

RAX48: before 1.0.10.110

RAX50: before 1.0.10.110

RAX50S: before 1.0.10.110

RAX45: before 1.0.10.110

RAX38v2: before 1.0.10.110

RAX35v2: before 1.0.10.110

RAX42: before 1.0.10.110

RAX40v2: before 1.0.10.110

R8000: before 1.0.4.84

R7850: before 1.0.5.84

RAXE500: before 1.0.9.78

RAXE450: before 1.0.9.78

External links

http://kb.netgear.com/000065711/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Routers-PSV-2021-0329

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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