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CVE-2021-30047

Quick assessment

Affected
n/a n/a
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

vsftpd是一款用于类Unix系统的FTP（文件传输协议）服务器。 vsftpd 3.0.3版本存在安全漏洞，该漏洞源于允许攻击者因允许的连接数量有限而导致拒绝服务。

AI Predicted 5.3 Difficulty: Moderate EPSS 3.21% · P88

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-30047

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
VSFTPD 3.0.3 allows attackers to cause a denial of service due to limited number of connections allowed.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
vsftpd 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
vsftpd是一款用于类Unix系统的FTP（文件传输协议）服务器。 vsftpd 3.0.3版本存在安全漏洞，该漏洞源于允许攻击者因允许的连接数量有限而导致拒绝服务。
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
- n/a n/a -

II. Public POCs for CVE-2021-30047

# POC Description Source Link Shenlong Link
1 vsftpd before 3.0.3 allows remote attackers to cause a denial of service by sending a crafted FTP command. https://github.com/projectdiscovery/nuclei-templates/blob/main/network/cves/2021/CVE-2021-30047.yaml POC Details
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III. Intelligence Information for CVE-2021-30047

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Same Patch Batch · n/a · 2023-08-22 · 151 CVEs total

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Showing top 20 of 151 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-30047

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