CVE-2018-14663
5.9 · MEDIUMOverview
CVE-2018-14663 is a medium-severity vulnerability affecting powerdns dnsdist. It was published on November 26, 2018 and has a CVSS 3.0 base score of 5.9 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query with trailing data such that the addition of a record by dnsdist, for example an OPT record when adding EDNS Client Subnet, might result in the trailing data being smuggled to the backend as a valid record while not seen by dnsdist. This is an issue when dnsdist is deployed as a DNS Firewall and used to filter some records that should not be received by the backend. This issue occurs only when either the 'useClientSubnet' or the experimental 'addXPF' parameters are used when declaring a new backend.
Remediation
Check the references section for vendor advisories and patches from powerdns. Update dnsdist 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 | dnsdist | 0 | Affected |
Frequently Asked Questions
What is CVE-2018-14663?
CVE-2018-14663 is a medium-severity vulnerability affecting powerdns dnsdist. It was published on November 26, 2018 and has a CVSS 3.0 base score of 5.9 (MEDIUM).
How severe is CVE-2018-14663?
This vulnerability has a CVSS 3.0 base score of 5.9, 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-2018-14663?
Check the references section for vendor advisories and patches from powerdns. Update dnsdist 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-2018-14663?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-14663 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.
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