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CVE-2023-4967— Denial of service

Quick assessment

Affected
Cloud Software Group NetScaler ADC
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.

Citrix Systems Citrix ADC and NetScaler Gateway是美国思杰系统（Citrix Systems）公司的一款应用交付控制器。 NetScaler ADC 和 NetScaler Gateway 存在安全漏洞，该漏洞源于配置为网关或 AAA 虚拟服务器时，存在拒绝服务漏洞。

CVSS 8.2 · High EPSS 0.89% · P58

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-4967

Vulnerability Information
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Vulnerability Title
Denial of service
Source: CVE Program / CVE List V5
Vulnerability Description
Denial of Service in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA Virtual Server
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Citrix ADC 和 NetScaler Gateway 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Citrix Systems Citrix ADC and NetScaler Gateway是美国思杰系统（Citrix Systems）公司的一款应用交付控制器。 NetScaler ADC 和 NetScaler Gateway 存在安全漏洞，该漏洞源于配置为网关或 AAA 虚拟服务器时，存在拒绝服务漏洞。
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
Cloud Software Group NetScaler ADC 14.1 ~ 8.50 -
Cloud Software Group NetScaler Gateway 14.1 ~ 8.50 -

II. Public POCs for CVE-2023-4967

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III. Intelligence Information for CVE-2023-4967

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Other References for CVE-2023-4967 (1)

IV. Related Vulnerabilities

Same product: NetScaler ADC
Same vendor: Cloud Software Group
Same weakness: CWE-119

V. Comments for CVE-2023-4967

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