CVE-2024-8881

Medium

Description

A post-authentication command injection vulnerability in the CGI program in the Zyxel GS1900-48 switch firmware version V2.80(AAHN.1)C0 and earlier could allow an authenticated, LAN-based attacker with administrator privileges to execute some operating system (OS) commands on an affected device by sending a crafted HTTP request.

SeverityMedium

CVSS6.8

Exploit probability53. percentile0.7%

Product

Zyxel Gs1900-48 Firmware

PublishedNov 12, 2024

First seenNov 12, 2024

Weakness typeCWE-78OS command injection

How to fix

Update

zyxel gs1900-48_firmware2.90\(aahn.0\)c0 or later
zyxel gs1900-8_firmware2.90\(aahh.0\)c0 or later
zyxel gs1900-8hp_firmware2.90\(aahi.0\)c0 or later
zyxel gs1900-10hp_firmware2.90\(aazi.0\)c0 or later
zyxel gs1900-16_firmware2.90\(aahj.0\)c0 or later
zyxel gs1900-24_firmware2.90\(aahl.0\)c0 or later
zyxel gs1900-24e_firmware2.90\(aahk.0\)c0 or later
zyxel gs1900-24ep_firmware2.90\(abto.0\)c0 or later
zyxel gs1900-24hpv2_firmware2.90\(abtp.0\)c0 or later
zyxel gs1900-48hpv2_firmware2.90\(abtq.0\)c0 or later

Vendor advisories

zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-command-injection-and-buffer-overflow-vulnerabilities-in-gs1900-series-switches-11-12-2024

Affected products

Product	Affected versions	Fixed in
zyxel gs1900-48_firmware	v < 2.90\(aahn.0\)c0	2.90\(aahn.0\)c0
zyxel gs1900-8_firmware	v < 2.90\(aahh.0\)c0	2.90\(aahh.0\)c0
zyxel gs1900-8hp_firmware	v < 2.90\(aahi.0\)c0	2.90\(aahi.0\)c0
zyxel gs1900-10hp_firmware	v < 2.90\(aazi.0\)c0	2.90\(aazi.0\)c0
zyxel gs1900-16_firmware	v < 2.90\(aahj.0\)c0	2.90\(aahj.0\)c0
zyxel gs1900-24_firmware	v < 2.90\(aahl.0\)c0	2.90\(aahl.0\)c0
zyxel gs1900-24e_firmware	v < 2.90\(aahk.0\)c0	2.90\(aahk.0\)c0
zyxel gs1900-24ep_firmware	v < 2.90\(abto.0\)c0	2.90\(abto.0\)c0
zyxel gs1900-24hpv2_firmware	v < 2.90\(abtp.0\)c0	2.90\(abtp.0\)c0
zyxel gs1900-48hpv2_firmware	v < 2.90\(abtq.0\)c0	2.90\(abtq.0\)c0

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