4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
6.6 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
38.0%
Two issues have been found in PowerDNS Authoritative Server allowing
an attacker in position of man-in-the-middle to alter the content of an AXFR because of insufficient validation
of TSIG signatures.
# SPDX-FileCopyrightText: 2018 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
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.112374");
script_version("2023-07-20T05:05:18+0000");
script_tag(name:"last_modification", value:"2023-07-20 05:05:18 +0000 (Thu, 20 Jul 2023)");
script_tag(name:"creation_date", value:"2018-09-12 16:54:11 +0200 (Wed, 12 Sep 2018)");
script_tag(name:"cvss_base", value:"4.3");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2019-10-09 23:19:00 +0000 (Wed, 09 Oct 2019)");
script_cve_id("CVE-2016-7073", "CVE-2016-7074");
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
script_name("PowerDNS Security Advisory 2016-04: Insufficient validation of TSIG signatures");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2018 Greenbone AG");
script_family("General");
script_dependencies("pdns_version.nasl");
script_mandatory_keys("powerdns/recursor_or_authoritative_server/installed");
script_tag(name:"summary", value:"Two issues have been found in PowerDNS Authoritative Server allowing
an attacker in position of man-in-the-middle to alter the content of an AXFR because of insufficient validation
of TSIG signatures.");
script_tag(name:"insight", value:"The first issue is a missing check of the TSIG time and fudge values in AXFRRetriever,
leading to a possible replay attack. This issue has been assigned CVE-2016-7073.
The second issue is a missing check that the TSIG record is the last one, leading to the possibility of parsing records that are not covered by the TSIG signature.
This issue has been assigned CVE-2016-7074.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"affected", value:"PowerDNS Authoritative Server up to and including 3.4.10 and 4.0.1 are affected.
PowerDNS Recursor from 4.0.0 up to and including 4.0.3 are affected.");
script_tag(name:"solution", value:"Update PowerDNS Authoritative Server to version 3.4.11 or 4.0.2 respectively.
Update PowerDNS Recursor 4.x.x to version 4.0.4.");
script_xref(name:"URL", value:"https://doc.powerdns.com/md/security/powerdns-advisory-2016-04/");
exit(0);
}
include("version_func.inc");
include("host_details.inc");
cpe_list = make_list( 'cpe:/a:powerdns:authoritative_server', 'cpe:/a:powerdns:recursor' );
if( ! list_infos = get_app_port_from_list( cpe_list:cpe_list ) )
exit( 0 );
cpe = list_infos["cpe"];
port = list_infos["port"];
if( ! infos = get_app_version_and_proto( cpe:cpe, port:port ) )
exit( 0 );
version = infos["version"];
proto = infos["proto"];
if( cpe == 'cpe:/a:powerdns:authoritative_server' ) {
if( version_is_less( version:version, test_version:"3.4.11" ) ) {
report = report_fixed_ver( installed_version:version, fixed_version:"3.4.11" );
security_message( data:report, port:port, proto:proto );
exit( 0 );
}
if( version_is_equal( version:version, test_version:"4.0.1" ) ) {
report = report_fixed_ver( installed_version:version, fixed_version:"4.0.2" );
security_message( data:report, port:port, proto:proto );
exit( 0 );
}
} else if ( cpe == 'cpe:/a:powerdns:recursor' ) {
if( version_in_range( version:version, test_version:"4.0.0", test_version2:"4.0.3" ) ) {
report = report_fixed_ver( installed_version:version, fixed_version:"4.0.4" );
security_message( data:report, port:port, proto:proto );
exit( 0 );
}
}
exit( 99 );
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
6.6 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
38.0%