8.1 High
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
7.5 High
AI Score
Confidence
High
5.8 Medium
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:P/I:P/A:P
0.004 Low
EPSS
Percentile
72.6%
WPA2 as used in several models of the AVM FRITZ!Box are prone to
multiple security weaknesses aka Key Reinstallation Attacks (KRACK).
# SPDX-FileCopyrightText: 2017 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:/o:avm:fritz%21_os";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.108292");
script_version("2023-07-14T16:09:27+0000");
script_cve_id("CVE-2017-13077", "CVE-2017-13078", "CVE-2017-13079", "CVE-2017-13080",
"CVE-2017-13081", "CVE-2017-13082", "CVE-2017-13084", "CVE-2017-13086",
"CVE-2017-13087", "CVE-2017-13088");
script_tag(name:"cvss_base", value:"5.8");
script_tag(name:"cvss_base_vector", value:"AV:A/AC:L/Au:N/C:P/I:P/A:P");
script_tag(name:"last_modification", value:"2023-07-14 16:09:27 +0000 (Fri, 14 Jul 2023)");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2019-10-03 00:03:00 +0000 (Thu, 03 Oct 2019)");
script_tag(name:"creation_date", value:"2017-11-22 07:59:41 +0100 (Wed, 22 Nov 2017)");
script_name("Multiple AVM FRITZ!Box WPA2 Key Reinstallation Vulnerabilities - KRACK");
script_category(ACT_GATHER_INFO);
script_family("General");
script_copyright("Copyright (C) 2017 Greenbone AG");
script_dependencies("gb_avm_fritz_box_detect.nasl");
script_mandatory_keys("avm/fritz/model", "avm/fritz/firmware_version");
script_xref(name:"URL", value:"https://avm.de/service/aktuelle-sicherheitshinweise/");
script_xref(name:"URL", value:"http://www.securityfocus.com/bid/101274");
script_xref(name:"URL", value:"https://en.avm.de/service/current-security-notifications/");
script_tag(name:"vuldetect", value:"Check the firmware version.");
script_tag(name:"solution", value:"Update the firmware to version 6.92 or later.");
script_tag(name:"summary", value:"WPA2 as used in several models of the AVM FRITZ!Box are prone to
multiple security weaknesses aka Key Reinstallation Attacks (KRACK).");
script_tag(name:"affected", value:"AVM FRITZ!Box 7590, 7580, 7560 and 7490 with a firmware below 6.92,
if configured to access the internet provided by another router via wireless LAN uplink.");
script_tag(name:"qod_type", value:"remote_banner");
script_tag(name:"solution_type", value:"VendorFix");
exit(0);
}
include("version_func.inc");
include("host_details.inc");
if( ! fw_version = get_app_version( cpe:CPE, nofork:TRUE ) ) exit( 0 );
if( ! model = get_kb_item( "avm/fritz/model" ) ) exit( 0 );
# Those got a fix from AVM but other models might be vulnerable as well
valid_models = make_list( "7590", "7580", "7560", "7490" );
foreach m( valid_models ) {
if( egrep( string:model, pattern:'^' + m ) ) {
vuln_model = TRUE;
break;
}
}
if( ! vuln_model ) exit( 0 );
patch = "6.92";
if( version_is_less( version:fw_version, test_version:patch ) ) {
report = 'Model: ' + model + '\n';
report += 'Installed Firmware: ' + fw_version + '\n';
report += 'Fixed Firmware: ' + patch;
security_message( port:0, data:report );
exit( 0 );
}
exit( 99 );
8.1 High
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
7.5 High
AI Score
Confidence
High
5.8 Medium
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:P/I:P/A:P
0.004 Low
EPSS
Percentile
72.6%