PowerDNS Recursor 4.1.0 DNSSEC Signature Validation Spoofing Vulnerability (CVE-2018-1000003)

low Nessus Plugin ID 106487


The remote name server is affected by a spoofing vulnerability.


According to its self-reported version number, the version of the PowerDNS Recursor listening on the remote host is version 4.1.0. It is, therefore, affected by a flaw when handling DNSSEC signature validation of NSEC or NSEC3 records.

Note that Nessus has not attempted to exploit these issues but has instead relied only on the application's self-reported version number.
Also, Nessus has not checked for the presence of the patch.


Upgrade to PowerDNS Recursor 4.1.1 or later. Alternatively, apply the patches referenced in the vendor advisories.

See Also



Plugin Details

Severity: Low

ID: 106487

File Name: powerdns_recursor_4_1_1.nasl

Version: 1.5

Type: remote

Family: DNS

Published: 1/30/2018

Updated: 11/8/2019

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2018-1000003


Risk Factor: Low

Score: 1.4


Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: Low

Base Score: 3.7

Temporal Score: 3.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:powerdns:powerdns, cpe:/a:powerdns:recursor

Required KB Items: pdns/version_full, pdns/version_source, pdns/type, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 1/22/2018

Vulnerability Publication Date: 1/22/2018

Reference Information

CVE: CVE-2018-1000003