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FreeBSD : powerdns-recursor -- insufficient validation of DNSSEC signatures (24a82876-002e-11e8-9a95-0cc47a02c232)

low Nessus Plugin ID 106287

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Synopsis

The remote FreeBSD host is missing a security-related update.

Description

PowerDNS Security Advisory reports :

An issue has been found in the DNSSEC validation component of PowerDNS Recursor, allowing an ancestor delegation NSEC or NSEC3 record to be used to wrongfully prove the non-existence of a RR below the owner name of that record. This would allow an attacker in position of man-in-the-middle to send a NXDOMAIN answer for a name that does exist.

Solution

Update the affected package.

See Also

http://www.nessus.org/u?be17e57d

http://www.nessus.org/u?41c5f4a3

Plugin Details

Severity: Low

ID: 106287

File Name: freebsd_pkg_24a82876002e11e89a950cc47a02c232.nasl

Version: 3.4

Type: local

Published: 1/24/2018

Updated: 11/10/2018

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS v3

Risk Factor: Low

Base Score: 3.7

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:powerdns-recursor, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 1/23/2018

Vulnerability Publication Date: 1/22/2018

Reference Information

CVE: CVE-2018-1000003