Unbound < 1.3.4 NSEC3 Signature Verification DNS Spoofing Vulnerability (CVE-2009-3602)

High Nessus Plugin ID 106379


The remote name server is affected by a remote DNS spoofing vulnerability.


According to its self-reported version number, the remote Unbound DNS resolver is affected by a remote DNS spoofing vulnerability when verifying NSEC3 signatures.


Upgrade to Unbound version 1.3.4 or later.

See Also


Plugin Details

Severity: High

ID: 106379

File Name: unbound_1_3_4.nasl

Version: 1.5

Type: remote

Family: DNS

Published: 2018/01/26

Updated: 2018/11/15

Dependencies: 87872

Configuration: Enable paranoid mode

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

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

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

CVSS v3.0

Base Score: 7.3

Temporal Score: 6.4

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:unbound:unbound

Required KB Items: Settings/ParanoidReport, unbound/version

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2009/10/07

Vulnerability Publication Date: 2009/10/07

Reference Information

CVE: CVE-2009-3602

BID: 37459

CWE: 310