CVE-2017-15093

low-risk
Published 2018-01-23

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.

Do I need to act?

-
0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / HIGH complexity

Affected Products (1)

Affected Vendors

Powerdns

References (4)

Third Party Advisory http://www.securityfocus.com/bid/101982
Mitigation https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-06....
Third Party Advisory http://www.securityfocus.com/bid/101982
Mitigation https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2017-06....
22
/ 100
low-risk
Severity 17/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal