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CVE-2019-3806

Quick assessment

Affected
Power DNS pdns-recursor
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.

PowerDNS Recursor（又名pdns_recursor）是荷兰PowerDNS公司的一款域名解析服务器。 PowerDNS Recursor 4.1.4版本至4.1.8版本中存在安全特征问题漏洞，该漏洞源于程序没有对通过TCP协议所接收到的查询执行Lua hooks机制。远程攻击者可利用该漏洞绕过安全策略。

AI Predicted 7.5 Difficulty: Easy EPSS 1.45% · P73
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I. Basic Information for CVE-2019-3806

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue has been found in PowerDNS Recursor versions after 4.1.3 before 4.1.9 where Lua hooks are not properly applied to queries received over TCP in some specific combination of settings, possibly bypassing security policies enforced using Lua.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不恰当实现的标准安全检查
Source: CVE Program / CVE List V5
Vulnerability Title
PowerDNS Recursor 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PowerDNS Recursor（又名pdns_recursor）是荷兰PowerDNS公司的一款域名解析服务器。 PowerDNS Recursor 4.1.4版本至4.1.8版本中存在安全特征问题漏洞，该漏洞源于程序没有对通过TCP协议所接收到的查询执行Lua hooks机制。远程攻击者可利用该漏洞绕过安全策略。
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
Power DNS pdns-recursor versions after 4.1.3 before 4.1.9 -

II. Public POCs for CVE-2019-3806

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III. Intelligence Information for CVE-2019-3806

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Vendor Advisories for CVE-2019-3806 (1)

Other References for CVE-2019-3806 (1)

IV. Related Vulnerabilities

Same product: pdns-recursor
Same vendor: Power DNS
Same weakness: CWE-358

V. Comments for CVE-2019-3806

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