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CVE-2023-27990

Quick assessment

Affected
Zyxel ATP series firmware
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Zyxel ATP是中国合勤（Zyxel）公司的一款防火墙。 多款Zyxel产品存在安全漏洞。攻击者利用该漏洞执行跨站脚本攻击。以下产品及版本受到影响：Zyxel ATP 4.32版本至5.35版本、USG FLEX 4.50版本至5.35版本、USG FLEX 50(W) 4.16版本至5.35版本、USG20(W)-VPN 4.16版本至5.35版本、VPN 4.30版本至5.35版本。

CVSS 4.8 · Medium EPSS 0.34% · P25
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I. Basic Information for CVE-2023-27990

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The cross-site scripting (XSS) vulnerability in Zyxel ATP series firmware versions 4.32 through 5.35, USG FLEX series firmware versions 4.50 through 5.35, USG FLEX 50(W) firmware versions 4.16 through 5.35, USG20(W)-VPN firmware versions 4.16 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow an authenticated attacker with administrator privileges to store malicious scripts in a vulnerable device. A successful XSS attack could then result in the stored malicious scripts being executed when the user visits the Logs page of the GUI on the device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Zyxel ATP 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel ATP是中国合勤（Zyxel）公司的一款防火墙。 多款Zyxel产品存在安全漏洞。攻击者利用该漏洞执行跨站脚本攻击。以下产品及版本受到影响：Zyxel ATP 4.32版本至5.35版本、USG FLEX 4.50版本至5.35版本、USG FLEX 50(W) 4.16版本至5.35版本、USG20(W)-VPN 4.16版本至5.35版本、VPN 4.30版本至5.35版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Zyxel ATP series firmware 4.32 through 5.35 -
Zyxel USG FLEX series firmware 4.50 through 5.35 -
Zyxel USG FLEX 50(W) firmware 4.16 through 5.35 -
Zyxel USG20(W)-VPN firmware 4.16 through 5.35 -
Zyxel VPN series firmware 4.30 through 5.35 -

II. Public POCs for CVE-2023-27990

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III. Intelligence Information for CVE-2023-27990

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Other References for CVE-2023-27990 (1)

Same Patch Batch · Zyxel · 2023-04-24 · 8 CVEs total

CVE-2023-27991 8.8 HIGH Zyxel ATP 操作系统命令注入漏洞
CVE-2023-22916 8.1 HIGH Zyxel ATP 安全漏洞
CVE-2023-22913 8.1 HIGH Zyxel USG FLEX 命令注入漏洞
CVE-2023-22917 7.5 HIGH Zyxel ATP 安全漏洞
CVE-2023-22915 7.5 HIGH Zyxel USG FLEX 安全漏洞
CVE-2023-22914 7.2 HIGH Zyxel USG FLEX 路径遍历漏洞
CVE-2023-22918 6.5 MEDIUM Zyxel ATP 安全漏洞

IV. Related Vulnerabilities

Same product: ATP series firmware
Same vendor: Zyxel
Same weakness: CWE-79

V. Comments for CVE-2023-27990

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