ISC BIND 9 DNSSEC NSEC/NSEC3 Bogus NXDOMAIN Responses

medium Nessus Plugin ID 44116
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote name server is affected by a cache poisoning vulnerability.

Description

According to its version number, the remote installation of BIND suffers from a cache poisoning vulnerability. The vulnerability exists due to an error in DNSSEC NSEC/NSEC3 validation code which could cause caching of bogus NXDOMAIN responses without correctly validating them. This issue affects all versions prior to 9.4.3-P5, 9.5.2-P2, 9.6.1-P3 or pre-releases of 9.7.0.

Note that only nameservers that allow recursive queries and validate DNSSEC records are affected. Nessus has tried to verify if the remote service supports DNSSEC options, but has not verified if the remote service allows recursive queries, so this could be a false positive.

Solution

Upgrade to BIND 9.4.3-P5, 9.5.2-P2 or 9.6.1-P3 or later.

Note that fixes for 9.7.0 pre-releases are not available as of 2010/01/22.

Plugin Details

Severity: Medium

ID: 44116

File Name: bind9_bogus_nxdomain_caching.nasl

Version: 1.11

Type: remote

Family: DNS

Published: 1/22/2010

Updated: 6/27/2018

Dependencies: bind_version.nasl, dnssec_resolver.nasl

Configuration: Enable paranoid mode

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

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

Vulnerability Information

CPE: cpe:/a:isc:bind

Required KB Items: bind/version, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 1/19/2010

Vulnerability Publication Date: 1/19/2010

Reference Information

CVE: CVE-2010-0097

BID: 37865

CERT: 360341

Secunia: 38219