CVE-2017-15093

Name: CVE-2017-15093
Creator: NVD / NIST
Published: 2018-01-23T15:29:00.383+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.84%

Last modified Jun 17, 2026

CVE-2017-15093 is a vulnerability of currently unknown severity. When api-config-dir is set to a non-empty value, which is not the case by default, the API in PowerDNS Recursor 4.x up to and including 4.0.6 and 3.x up to and including 3.7.4 allows an authorized user to update the Recursor's ACL by adding and removing netmasks, and to configure forward zones. It was discovered that the new netmask and IP addresses of forwarded zones were not sufficiently validated, allowing an authenticated user to inject new configuration directives into the Recursor's configuration.. EPSS estimates a 0.84% chance of exploitation in the next 30 days.

Description

When api-config-dir is set to a non-empty value, which is not the case by default, the API in PowerDNS Recursor 4.x up to and including 4.0.6 and 3.x up to and including 3.7.4 allows an authorized user to update the Recursor's ACL by adding and removing netmasks, and to configure forward zones. It was discovered that the new netmask and IP addresses of forwarded zones were not sufficiently validated, allowing an authenticated user to inject new configuration directives into the Recursor's configuration.

Metrics

EPSS Probability

0.84%

53.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Powerdns	Recursor	>= 3.0, <= 3.7.4
Powerdns	Recursor	>= 4.0.0, <= 4.0.6

References

http://www.securityfocus.com/bid/101982Third Party Advisory, VDB Entry
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-06.htmlMitigation, Patch, Vendor Advisory
http://www.securityfocus.com/bid/101982Third Party Advisory, VDB Entry
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-06.htmlMitigation, Patch, Vendor Advisory

Timeline

Published: Jan 23, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-15093?

How severe is CVE-2017-15093?

Severity scoring for CVE-2017-15093 is pending analysis. The EPSS model estimates a 0.84% probability of exploitation in the next 30 days.

How do I fix CVE-2017-15093?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-15093?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST