ISC BIND 9 DNSSEC NSEC/NSEC3 Bogus NXDOMAIN Responses

Medium Nessus Plugin ID 44116

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: 2010/01/22

Updated: 2018/06/27

Dependencies: 10028, 35373

Configuration: Enable paranoid mode

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 4.3

Temporal Score: 3.2

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:isc:bind

Required KB Items: bind/version, Settings/ParanoidReport

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2010/01/19

Vulnerability Publication Date: 2010/01/19

Reference Information

CVE: CVE-2010-0097

BID: 37865

CERT: 360341

Secunia: 38219