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CVE-2021-20019

Quick assessment

Affected
SonicWall SonicOS
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 SonicOS是美国SonicWALL公司的一套专为SonicWall防火墙设备设计的操作系统。 SonicWALL SonicOS 存在缓冲区错误漏洞，该漏洞允许攻击者通过发送精心设计的HTTP请求泄露部分内存，这可能导致内部敏感数据泄露漏洞。

AI Predicted 5.3 Difficulty: Easy EPSS 1.41% · P72

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2021-20019

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in SonicOS where the HTTP server response leaks partial memory by sending a crafted HTTP request, this can potentially lead to an internal sensitive data disclosure vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
SonicWALL SonicOS 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SonicWALL SonicOS是美国SonicWALL公司的一套专为SonicWall防火墙设备设计的操作系统。 SonicWALL SonicOS 存在缓冲区错误漏洞，该漏洞允许攻击者通过发送精心设计的HTTP请求泄露部分内存，这可能导致内部敏感数据泄露漏洞。
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
SonicWall SonicOS SonicOS - 6.5.4.7-83n -

II. Public POCs for CVE-2021-20019

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-20019

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Other References for CVE-2021-20019 (1)

IV. Related Vulnerabilities

Same product: SonicOS
Same vendor: SonicWall
Same weakness: CWE-200

V. Comments for CVE-2021-20019

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