ISC BIND 9 'query.c' Function Unspecified Recursive Query DoS

medium Nessus Network Monitor Plugin ID 3978
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 host is vulnerable to a Denial of Service (DoS) attack.

Description

The remote BIND DNS server is vulnerable to a flaw in the way that it handles malformed recursive query requests. An attacker exploiting this flaw would need to have the ability to send malformed requests to the vulnerable DNS Server. Further, the remote server must be configured to handle recursive queries from the attacker. Successful exploitation would lead to the BIND server crashing.

Solution

Either disable recursion or upgrade to version 9.4.1, 9.5.0a4 or higher.

See Also

http://www.isc.org/index.pl?/sw/bind/bind-security.php

http://marc.info/?l=bind-users&m=117781099030155&w=2

https://www.isc.org/node/394

http://marc.info/?l=bind-announce&m=117798912418849&w=2

Plugin Details

Severity: Medium

ID: 3978

Family: DNS Servers

Published: 5/1/2007

Updated: 3/6/2019

Dependencies: 1003

Nessus ID: 25121

Risk Information

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.7

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

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

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 4

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

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

Vulnerability Information

CPE: cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*

Reference Information

CVE: CVE-2007-2241

BID: 23738