7.5 High
CVSS2
Attack Vector
NETWORK
Attack 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
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
9.9 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
70.8%
D-Link DAP-1520 is prone to a remote code execution (RCE)
vulnerability.
# SPDX-FileCopyrightText: 2020 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 = "cpe:/o:dlink:dap-1520_firmware";
if (description)
{
script_oid("1.3.6.1.4.1.25623.1.0.144347");
script_version("2024-06-28T15:38:46+0000");
script_tag(name:"last_modification", value:"2024-06-28 15:38:46 +0000 (Fri, 28 Jun 2024)");
script_tag(name:"creation_date", value:"2020-08-04 02:55:09 +0000 (Tue, 04 Aug 2020)");
script_tag(name:"cvss_base", value:"7.5");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
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:"2020-07-27 14:56:00 +0000 (Mon, 27 Jul 2020)");
script_cve_id("CVE-2020-15892");
script_tag(name:"qod_type", value:"remote_banner");
script_tag(name:"solution_type", value:"VendorFix");
script_name("D-Link DAP-1520 < 1.10b04Beta02 RCE Vulnerability");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2020 Greenbone AG");
script_family("Web application abuses");
script_dependencies("gb_dlink_dap_consolidation.nasl");
script_mandatory_keys("d-link/dap/detected");
script_tag(name:"summary", value:"D-Link DAP-1520 is prone to a remote code execution (RCE)
vulnerability.");
script_tag(name:"insight", value:"Whenever a user performs a login action from the web interface,
the request values are being forwarded to the ssi binary. On the login page, the web interface
restricts the password input field to a fixed length of 15 characters. The problem is that
validation is being done on the client side, hence it can be bypassed. When an attacker manages to
intercept the login request (POST based) and tampers with the vulnerable parameter (log_pass), to a
larger length, the request will be forwarded to the webserver. This results in a stack-based buffer
overflow. A few other POST variables, (transferred as part of the login request) are also
vulnerable: html_response_page and log_user.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"affected", value:"D-Link DAP-1520 version 1.10B04 and prior.");
script_tag(name:"solution", value:"Update to version 1.10b04Beta02 or later.");
script_xref(name:"URL", value:"https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10169");
script_xref(name:"URL", value:"https://research.loginsoft.com/vulnerability/classic-stack-based-buffer-overflow-in-dlink-firmware-dap-1520/");
exit(0);
}
include("host_details.inc");
include("version_func.inc");
if (!version = get_app_version(cpe: CPE, nofork: TRUE))
exit(0);
if (version_is_less_equal(version: version, test_version: "1.10b04")) {
report = report_fixed_ver(installed_version: version, fixed_version: "1.10b04Beta02");
security_message(port: 0, data: report);
exit(0);
}
exit(99);
7.5 High
CVSS2
Attack Vector
NETWORK
Attack 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
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
9.9 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
70.8%