CVE-2023-5960
Quick assessment
Affected
Zyxel USG FLEX 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 USG FLEX是中国合勤（Zyxel）公司的一款防火墙。提供灵活的 VPN 选项（IPsec、SSL 或 L2TP），为远程工作和管理提供灵活的安全远程访问。 Zyxel USG FLEX 系列 4.50 至 5.37固件版本、 VPN 系列 4.30 到 5.37固件版本存在安全漏洞，该漏洞源于热点功能中权限管理不当，允许经过身份验证的本地攻击者访问受影响设备上的系统文件。
Possible ATT&CK Techniques 2 AI
T1528 · Steal Application Access Token T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2023-5960
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An improper privilege management vulnerability in the hotspot feature of the Zyxel USG FLEX series firmware versions 4.50 through 5.37 and VPN series firmware versions 4.30 through 5.37 could allow an authenticated local attacker to access the system files on an affected device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Zyxel USG FLEX 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel USG FLEX是中国合勤（Zyxel）公司的一款防火墙。提供灵活的 VPN 选项（IPsec、SSL 或 L2TP），为远程工作和管理提供灵活的安全远程访问。 Zyxel USG FLEX 系列 4.50 至 5.37固件版本、 VPN 系列 4.30 到 5.37固件版本存在安全漏洞，该漏洞源于热点功能中权限管理不当，允许经过身份验证的本地攻击者访问受影响设备上的系统文件。
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 | USG FLEX series firmware | versions 4.50 through 5.37 | - |
|
| Zyxel | VPN series firmware | versions 4.30 through 5.37 | - |
|
II. Public POCs for CVE-2023-5960
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2023-5960 (1)
Same Patch Batch · Zyxel · 2023-11-28 · 9 CVEs total
| CVE-2023-4398 | 7.5 HIGH | Zyxel ATP 输入验证错误漏洞 |
| CVE-2023-5797 | 5.5 MEDIUM | Zyxel ATP 安全漏洞 |
| CVE-2023-5650 | 5.5 MEDIUM | Zyxel ATP 安全漏洞 |
| CVE-2023-37926 | 5.5 MEDIUM | Zyxel ATP 安全漏洞 |
| CVE-2023-37925 | 5.5 MEDIUM | Zyxel ATP 安全漏洞 |
| CVE-2023-35136 | 5.5 MEDIUM | Zyxel ATP 输入验证错误漏洞 |
| CVE-2023-35139 | 5.2 MEDIUM | Zyxel ATP 跨站脚本漏洞 |
| CVE-2023-4397 | 4.4 MEDIUM | Zyxel ATP 安全漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-269
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V. Comments for CVE-2023-5960
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