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CVE-2023-6340

Quick assessment

Affected
SonicWall Capture Client
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.

SonicWALL NetExtender是美国SonicWALL公司的一个允许远程用户以安全方式连接到远程网络的软件应用程序。为 Windows 和 Linux 用户提供简单而安全的访问。 SonicWall NetExtender client 10.2.337及之前版本和Capture Client 3.7.10及之前版本存在安全漏洞，该漏洞源于安装了sfpmonitor.sys驱动程序，该驱动程序存在缓冲区溢出漏洞，攻击者可利用该漏洞造成拒绝服务（DOS）。

AI Predicted 5.6 Difficulty: Moderate EPSS 0.21% · P12

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2023-6340

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
SonicWall Capture Client version 3.7.10, NetExtender client version 10.2.337 and earlier versions are installed with sfpmonitor.sys driver. The driver has been found to be vulnerable to Denial-of-Service (DoS) caused by Stack-based Buffer Overflow vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
SonicWALL NetExtender 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SonicWALL NetExtender是美国SonicWALL公司的一个允许远程用户以安全方式连接到远程网络的软件应用程序。为 Windows 和 Linux 用户提供简单而安全的访问。 SonicWall NetExtender client 10.2.337及之前版本和Capture Client 3.7.10及之前版本存在安全漏洞，该漏洞源于安装了sfpmonitor.sys驱动程序，该驱动程序存在缓冲区溢出漏洞，攻击者可利用该漏洞造成拒绝服务（DOS）。
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
SonicWall Capture Client 3.7.10 and earlier versions -
SonicWall NetExtender 10.2.337 and earlier versions -

II. Public POCs for CVE-2023-6340

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2023-6340

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Other References for CVE-2023-6340 (1)

IV. Related Vulnerabilities

Same vendor: SonicWall
Same weakness: CWE-121