CVE-2021-35030

Published: Jul 26, 2021Modified: Nov 21, 2024

4.3

Vector

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

Exploitability: 1.2 / Impact: 2.7

Source: NVD

Description

A vulnerability was found in the CGI program in Zyxel GS1900-8 firmware version V2.60, that did not properly sterilize packet contents and could allow an authenticated, local user to perform a cross-site scripting (XSS) attack via a crafted LLDP packet.

Affected (12)

Products: Zyxel: Gs1900 8 Firmware, Gs1900 8hp Firmware, Gs1900 10hp Firmware, Gs1900 16 Firmware, Gs1900 24e Firmware, Gs1900 24ep Firmware, Gs1900 24 Firmware, Gs1900 24hp Firmware, Gs1900 24hpv2 Firmware, Gs1900 48 Firmware, Gs1900 48hp Firmware, Gs1900 48hpv2 Firmware

12 products

Gs1900 24hpv2 Firmware

Gs1900 48 Firmware

Gs1900 48hp Firmware

Gs1900 48hpv2 Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Gs1900 8 Firmware	Before 2.70

Running on/with	Platform Versions
Zyxel Gs1900 8	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Gs1900 8hp Firmware	Before 2.70

Running on/with	Platform Versions
Zyxel Gs1900 8hp	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Gs1900 10hp Firmware	Before 2.70

Running on/with	Platform Versions
Zyxel Gs1900 10hp	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Gs1900 16 Firmware	Before 2.70

Running on/with	Platform Versions
Zyxel Gs1900 16	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Gs1900 24e Firmware	Before 2.70

Running on/with	Platform Versions
Zyxel Gs1900 24e	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Gs1900 24ep Firmware	Before 2.70

Running on/with	Platform Versions
Zyxel Gs1900 24ep	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Gs1900 24 Firmware	Before 2.70

Running on/with	Platform Versions
Zyxel Gs1900 24	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Gs1900 24hp Firmware	Before 2.70

Running on/with	Platform Versions
Zyxel Gs1900 24hp	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Gs1900 24hpv2 Firmware	Before 2.70

Running on/with	Platform Versions
Zyxel Gs1900 24hpv2	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Gs1900 48 Firmware	Before 2.70

Running on/with	Platform Versions
Zyxel Gs1900 48	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Gs1900 48hp Firmware	Before 2.70

Running on/with	Platform Versions
Zyxel Gs1900 48hp	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Zyxel Gs1900 48hpv2 Firmware	Before 2.70

Running on/with	Platform Versions
Zyxel Gs1900 48hpv2	All versions

Related CWEs

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (2)

https://www.zyxel.com/support/Zyxel_security_advisory_for_XSS_vulnerability_of_GS1900_series_switches.shtml

Source: security@zyxel.com.tw

PatchVendor Advisory

https://www.zyxel.com/support/Zyxel_security_advisory_for_XSS_vulnerability_of_GS1900_series_switches.shtml

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

PatchVendor Advisory

Timeline

No history available yet.