CVE-2023-34140
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I. Basic Information for CVE-2023-34140
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A buffer overflow vulnerability in the Zyxel ATP series firmware versions 4.32 through 5.36 Patch 2, USG FLEX series firmware versions 4.50 through 5.36 Patch 2, USG FLEX 50(W) series firmware versions 4.16 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 4.16 through 5.36 Patch 2, VPN series firmware versions 4.30 through 5.36 Patch 2, NXC2500 firmware versions 6.10(AAIG.0) through 6.10(AAIG.3), and NXC5500 firmware versions 6.10(AAOS.0) through 6.10(AAOS.4), could allow an unauthenticated, LAN-based attacker to cause denial of service (DoS) conditions by sending a crafted request to the CAPWAP daemon.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Zyxel ATP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel ATP是中国合勤（Zyxel）公司的一款防火墙。 Zyxel ATP ZLD V4.32 到 V5.36 Patch 2版本、USG FLEX ZLD V4.50到 V5.36 Patch 2版本、USG FLEX 50(W) / USG20(W)-VPN ZLD V4.16 到 V5.36 Patch 2版本、VPN ZLD V4.30 到 V5.36 Patch 2版本存在安全漏洞，该漏洞源于允许未经身份验证的基于 LAN 的攻击者在受影响的设备上通过向 CAPWAP 守护程序发送精心设计
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 5.36 Patch 2 | - | |
| Zyxel | USG FLEX series firmware | 4.50 through 5.36 Patch 2 | - | |
| Zyxel | USG FLEX 50(W) series firmware | 4.16 through 5.36 Patch 2 | - | |
| Zyxel | USG20(W)-VPN series firmware | 4.16 through 5.36 Patch 2 | - | |
| Zyxel | VPN series firmware | 4.30 through 5.36 Patch 2 | - | |
| Zyxel | NXC2500 firmware | 6.10(AAIG.0) through 6.10(AAIG.3) | - | |
| Zyxel | NXC5500 firmware | 6.10(AAOS.0) through 6.10(AAOS.4) | - |
II. Public POCs for CVE-2023-34140
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Zyxel · 2023-07-17 · 7 CVEs total
| CVE-2023-28767 | 8.8 HIGH | Zyxel ATP 操作系统命令注入漏洞 |
| CVE-2023-33011 | 8.8 HIGH | Zyxel ATP 格式化字符串错误漏洞 |
| CVE-2023-33012 | 8.8 HIGH | Zyxel ATP 操作系统命令注入漏洞 |
| CVE-2023-34139 | 8.8 HIGH | Zyxel USG FLEX 操作系统命令注入漏洞 |
| CVE-2023-34138 | 8.0 HIGH | Zyxel ATP 操作系统命令注入漏洞 |
| CVE-2023-34141 | 8.0 HIGH | Zyxel ATP 操作系统命令注入漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-120
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V. Comments for CVE-2023-34140
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