5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
6.2 Medium
AI Score
Confidence
Low
0.019 Low
EPSS
Percentile
88.6%
PowerDNS Authoritative Server is prone to a denial of service
vulnerability.
# SPDX-FileCopyrightText: 2016 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
CPE = 'cpe:/a:powerdns:authoritative_server';
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.106094");
script_version("2023-07-20T05:05:17+0000");
script_tag(name:"last_modification", value:"2023-07-20 05:05:17 +0000 (Thu, 20 Jul 2023)");
script_tag(name:"creation_date", value:"2016-06-08 11:23:10 +0700 (Wed, 08 Jun 2016)");
script_tag(name:"cvss_base", value:"5.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_cve_id("CVE-2015-5311");
script_name("PowerDNS Authoritative Server DoS Vulnerability");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2016 Greenbone AG");
script_family("Denial of Service");
script_dependencies("pdns_version.nasl");
script_mandatory_keys("powerdns/authoritative_server/installed");
script_xref(name:"URL", value:"https://doc.powerdns.com/md/security/powerdns-advisory-2015-03/");
script_tag(name:"summary", value:"PowerDNS Authoritative Server is prone to a denial of service
vulnerability.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"A bug was found in the packet parsing code. This bug, when exploited,
causes an assertion error and consequent termination of the pdns_server process, causing a Denial of Service.
When the PowerDNS Authoritative Server is run inside the guardian (--guardian), or inside a supervisor
like supervisord or systemd, it will be automatically restarted, limiting the impact to a somewhat
degraded service.");
script_tag(name:"impact", value:"A remote attacker may cause a DoS condition.");
script_tag(name:"affected", value:"PowerDNS Authoritative Server 3.4.4 until 3.4.6");
script_tag(name:"solution", value:"Upgrade to version 3.4.7 or later");
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
exit(0);
}
include("version_func.inc");
include("host_details.inc");
if( ! port = get_app_port( cpe:CPE ) ) exit( 0 );
if( ! infos = get_app_version_and_proto( cpe:CPE, port:port ) ) exit( 0 );
version = infos["version"];
proto = infos["proto"];
if( version_is_less( version:version, test_version:"3.4.7" ) ) {
report = report_fixed_ver( installed_version:version, fixed_version:"3.4.7" );
security_message( data:report, port:port, proto:proto );
exit( 0 );
}
exit( 99 );