6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:N/I:N/A:C
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9 Medium
AI Score
Confidence
High
0.081 Low
EPSS
Percentile
94.3%
The version of MySQL running on the remote host is 5.7.x prior to and including 5.7.30. It is, therefore, affected by multiple vulnerabilities, as noted in the July 2020 Critical Patch Update advisory:
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 5.7.30 and prior and 8.0.17 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. (CVE-2021-2160)
A vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 5.6.48 and prior, 5.7.30 and prior and 8.0.20 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. (CVE-2020-14539)
A vulnerability in the MySQL Client product of Oracle MySQL (component: C API). Supported versions that are affected are 5.6.48 and prior, 5.7.30 and prior and 8.0.20 and prior. Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Client. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Client. (CVE-2020-14550)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
##
# (C) Tenable Network Security, Inc.
##
include('compat.inc');
if (description)
{
script_id(138570);
script_version("1.13");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/01");
script_cve_id(
"CVE-2020-1967",
"CVE-2020-14539",
"CVE-2020-14540",
"CVE-2020-14547",
"CVE-2020-14550",
"CVE-2020-14553",
"CVE-2020-14559",
"CVE-2020-14576",
"CVE-2021-2001",
"CVE-2021-2160"
);
script_xref(name:"CEA-ID", value:"CEA-2021-0004");
script_xref(name:"CEA-ID", value:"CEA-2021-0025");
script_xref(name:"IAVA", value:"2021-A-0193-S");
script_xref(name:"IAVA", value:"2020-A-0321-S");
script_xref(name:"IAVA", value:"2021-A-0038-S");
script_name(english:"MySQL 5.7.x < 5.7.31 Multiple Vulnerabilities (Jul 2020 CPU)");
script_set_attribute(attribute:"synopsis", value:
"The remote database server is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The version of MySQL running on the remote host is 5.7.x prior to and including 5.7.30. It is, therefore, affected by
multiple vulnerabilities, as noted in the July 2020 Critical Patch Update
advisory:
- Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions
that are affected are 5.7.30 and prior and 8.0.17 and prior. Easily exploitable vulnerability allows high
privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of
this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete
DOS) of MySQL Server. (CVE-2021-2160)
- A vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions
that are affected are 5.6.48 and prior, 5.7.30 and prior and 8.0.20 and prior. Easily exploitable
vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently
repeatable crash (complete DOS) of MySQL Server. (CVE-2020-14539)
- A vulnerability in the MySQL Client product of Oracle MySQL (component: C API). Supported versions that are
affected are 5.6.48 and prior, 5.7.30 and prior and 8.0.20 and prior. Difficult to exploit vulnerability allows
low privileged attacker with network access via multiple protocols to compromise MySQL Client. Successful
attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Client. (CVE-2020-14550)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://www.oracle.com/security-alerts/cpujul2020.html#AppendixMSQL");
script_set_attribute(attribute:"see_also", value:"https://www.oracle.com/a/tech/docs/cpujul2020cvrf.xml");
script_set_attribute(attribute:"see_also", value:"https://www.oracle.com/security-alerts/cpujan2021.html#AppendixMSQL");
script_set_attribute(attribute:"see_also", value:"https://www.oracle.com/a/tech/docs/cpujan2021cvrf.xml");
script_set_attribute(attribute:"see_also", value:"https://www.oracle.com/security-alerts/cpuapr2021.html#AppendixMSQL");
script_set_attribute(attribute:"see_also", value:"https://www.oracle.com/a/tech/docs/cpuapr2021cvrf.xml");
script_set_attribute(attribute:"solution", value:
"Upgrade to MySQL version 5.7.31 or later.");
script_set_attribute(attribute:"agent", value:"all");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-14559");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/07/14");
script_set_attribute(attribute:"patch_publication_date", value:"2020/07/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/17");
script_set_attribute(attribute:"plugin_type", value:"combined");
script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:mysql");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Databases");
script_copyright(english:"This script is Copyright (C) 2020-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("mysql_version.nasl", "mysql_login.nasl", "mysql_version_local.nasl", "mysql_win_installed.nbin", "macosx_mysql_installed.nbin");
script_require_keys("installed_sw/MySQL Server");
exit(0);
}
include('vcf_extras_mysql.inc');
var app_info = vcf::mysql::combined_get_app_info();
var constraints = [{ 'min_version' : '5.7.0', 'fixed_version' : '5.7.31'}];
vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14539
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14540
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14547
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14550
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14553
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14559
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14576
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1967
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-2001
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-2160
www.oracle.com/a/tech/docs/cpuapr2021cvrf.xml
www.oracle.com/a/tech/docs/cpujan2021cvrf.xml
www.oracle.com/a/tech/docs/cpujul2020cvrf.xml
www.oracle.com/security-alerts/cpuapr2021.html#AppendixMSQL
www.oracle.com/security-alerts/cpujan2021.html#AppendixMSQL
www.oracle.com/security-alerts/cpujul2020.html#AppendixMSQL
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:N/I:N/A:C
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9 Medium
AI Score
Confidence
High
0.081 Low
EPSS
Percentile
94.3%