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CVE-2023-35136

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。 Zyxel ATP 存在输入验证错误漏洞，该漏洞源于Quagga程序包中存在不正确的输入验证漏洞，允许经身份验证的本地攻击者访问受影响设备上的配置文件。受影响的产品和版本：Zyxel ATP series 4.32至5.37版本，USG FLEX series 4.50至5.37版本，USG FLEX 50(W) series 4.16至5.37版本，USG20(W)-VPN series 4.16至5.37版本，VPN series 4.30

CVSS 5.5 · Medium EPSS 0.24% · P16
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I. Basic Information for CVE-2023-35136

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An improper input validation vulnerability in the “Quagga” package of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an authenticated local attacker to access configuration 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
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Zyxel ATP 输入验证错误漏洞
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 存在输入验证错误漏洞，该漏洞源于Quagga程序包中存在不正确的输入验证漏洞，允许经身份验证的本地攻击者访问受影响设备上的配置文件。受影响的产品和版本：Zyxel ATP series 4.32至5.37版本，USG FLEX series 4.50至5.37版本，USG FLEX 50(W) series 4.16至5.37版本，USG20(W)-VPN series 4.16至5.37版本，VPN series 4.30
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 versions 4.32 through 5.37 -
Zyxel USG FLEX series firmware versions 4.50 through 5.37 -
Zyxel USG FLEX 50(W) series firmware versions 4.16 through 5.37 -
Zyxel USG20(W)-VPN series firmware versions 4.16 through 5.37 -
Zyxel VPN series firmware versions 4.30 through 5.37 -

II. Public POCs for CVE-2023-35136

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III. Intelligence Information for CVE-2023-35136

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Other References for CVE-2023-35136 (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-2023-5960 5.5 MEDIUM Zyxel USG FLEX 安全漏洞
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-2023-35139 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 product: ATP series firmware
Same vendor: Zyxel
Same weakness: CWE-20

V. Comments for CVE-2023-35136

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