PowerDNS Authoritative Server < 2.9.22.5 / 3.0.1 Response Packet Parsing DoS

medium Nessus Plugin ID 57573
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Synopsis

The remote name server may be affected by a denial of service vulnerability.

Description

According to its self-reported version number, the version of the PowerDNS service listening on the remote host is prior to 2.9.22.5 or 3.0.1. It is, therefore, affected by a denial of service vulnerability due to improper handling of response packets. A remote attacker can exploit this, via a specially crafted packet, to tagger an infinite packet response loop, resulting in a denial of service condition.

Note that Nessus has not attempted to exploit this issue but has instead relied only on the application's self-reported version number.
Also, Nessus has not checked for the presence of any of the workarounds or if a patch is applied. Furthermore, for versions prior to 3.x, Nessus did not check if the server is operating as an authoritative server.

Solution

Upgrade to PowerDNS Authoritative Server 2.9.22.5 / 3.0.1 or later.
Alternatively, apply one of the workarounds or patches referenced in the vendor advisory.

See Also

https://doc.powerdns.com/powerdns-advisory-2012-01.html

http://www.nessus.org/u?9c15fb8b

Plugin Details

Severity: Medium

ID: 57573

File Name: powerdns_3_0_1.nasl

Version: 1.6

Type: remote

Family: DNS

Published: 1/17/2012

Updated: 7/25/2018

Dependencies: pdns_version.nasl

Configuration: Enable paranoid mode

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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

Vulnerability Information

CPE: cpe:/a:powerdns:powerdns, cpe:/a:powerdns:authoritative

Required KB Items: pdns/version, pdns/version_full, pdns/version_source, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 1/10/2012

Vulnerability Publication Date: 1/10/2012

Reference Information

CVE: CVE-2012-0206

BID: 51355