Knot DNS < 1.4.5 TSIG Signature Spoofing

medium Nessus Plugin ID 76799


The remote DNS server is potentially affected by a spoofing attack.


The remote host is running a version of Knot DNS prior to 1.4.5. It is, therefore, affected by an unspecified vulnerability in the TSIG validation code that may allow spoofing attacks due to improper TSIG signature verification.


Update to version 1.4.5 or later.

See Also

Plugin Details

Severity: Medium

ID: 76799

File Name: knot_dns_1_4_5.nasl

Version: 1.5

Type: remote

Family: DNS

Published: 7/25/2014

Updated: 11/28/2018

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Vulnerability Information

CPE: x-cpe:/a:cz.nic:knot_dns

Required KB Items: Settings/ParanoidReport, knot_dns/proto

Exploit Ease: No known exploits are available

Patch Publication Date: 4/15/2014

Vulnerability Publication Date: 4/14/2014

Reference Information

BID: 67187