CVE-2019-3871
Quick assessment
Affected
The PowerDNS Project pdns
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
PowerDNS Authoritative Server是荷兰PowerDNS公司的一款DNS服务器。 PowerDNS Authoritative Server 4.0.7之前版本和4.1.7之前版本中存在拒绝服务漏洞。远程攻击者可利用该漏洞造成拒绝服务。
Possible ATT&CK Techniques 1 AI
T1014 · Rootkit
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I. Basic Information for CVE-2019-3871
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in PowerDNS Authoritative Server before 4.0.7 and before 4.1.7. An insufficient validation of data coming from the user when building a HTTP request from a DNS query in the HTTP Connector of the Remote backend, allowing a remote user to cause a denial of service by making the server connect to an invalid endpoint, or possibly information disclosure by making the server connect to an internal endpoint and somehow extracting meaningful information about the response
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
PowerDNS Authoritative Server 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PowerDNS Authoritative Server是荷兰PowerDNS公司的一款DNS服务器。 PowerDNS Authoritative Server 4.0.7之前版本和4.1.7之前版本中存在拒绝服务漏洞。远程攻击者可利用该漏洞造成拒绝服务。
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 |
|---|---|---|---|---|
| The PowerDNS Project | pdns | 4.1.7 | - |
|
II. Public POCs for CVE-2019-3871
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2019-3871 (3)
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https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3871 x_refsource_CONFIRM
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Mailing List Discussions for CVE-2019-3871 (6)
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http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00022.html vendor-advisory x_refsource_SUSE
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GWUHF6MRSQ3YO7UUISGLV7MXCAGBW2VD/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ROFI6OTWF4GKONNSNEDUCW6LVSSEBZNF/ vendor-advisory x_refsource_FEDORA
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Other References for CVE-2019-3871 (1)
IV. Related Vulnerabilities
Same weakness: CWE-20
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V. Comments for CVE-2019-3871
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