CVE-2019-3871
6.5 · MEDIUMOverview
CVE-2019-3871 is a medium-severity vulnerability affecting powerdns authoritative_server. It was published on March 21, 2019 and has a CVSS 3.0 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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
Remediation
Check the references section for vendor advisories and patches from powerdns. Update authoritative_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| powerdns | authoritative_server | >= 0, < 4.0.7 | Affected |
References
Frequently Asked Questions
What is CVE-2019-3871?
CVE-2019-3871 is a medium-severity vulnerability affecting powerdns authoritative_server. It was published on March 21, 2019 and has a CVSS 3.0 base score of 6.5 (MEDIUM).
How severe is CVE-2019-3871?
This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-3871?
Check the references section for vendor advisories and patches from powerdns. Update authoritative_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-3871?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-3871 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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