CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
47.7%
According to its version, the installation of IBM DB2 running on the remote host is either 9.7 prior to Fix Pack 11 Special Build 40162, 10.1 prior to Fix Pack 6 Special Build 40161, 10.5 prior to Fix Pack 11 Special Build 40160, or 11.1 prior to Fix Pack 5 Special Build 40159, 11.5 prior to Mod 4 Fix Pack 0. It is, therefore, affected by one or more of the following vulnerabilities:
IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is vulnerable to a denial of service, caused by improper handling of Secure Sockets Layer (SSL) renegotiation requests. By sending specially-crafted requests, a remote attacker could exploit this vulnerability to increase the resource usage on the system. (CVE-2020-4355)
IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is vulnerable to a buffer overflow, caused by improper bounds checking which allows a local attacker to execute arbitrary code on the system with root privileges. (CVE-2020-4363)
IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 allows a local user to obtain sensitive information using a race condition of a symbolic link. (CVE-2020-4386, CVE-2020-4387)
IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 allows a local attacker to perform unauthorized actions on the system, caused by improper usage of shared memory.
By sending a specially-crafted request, an attacker can exploit this vulnerability to obtain sensitive information or cause a denial of service (DoS). (CVE-2020-4414)
IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow an unauthenticated attacker to cause a denial of service due a hang in the execution of a terminate command. (CVE-2020-4420) Note that Nessus has not tested for this issue 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(138332);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/07/26");
script_cve_id(
"CVE-2020-4355",
"CVE-2020-4363",
"CVE-2020-4386",
"CVE-2020-4387",
"CVE-2020-4414",
"CVE-2020-4420"
);
script_xref(name:"IAVB", value:"2020-B-0035-S");
script_xref(name:"IAVB", value:"2020-B-0043-S");
script_name(english:"IBM DB2 9.7 < FP11 40162 / 10.1 < FP6 40161 / 10.5 < FP11 40160 / 11.1 < FP5 40159 / 11.5 < Mod 4 FP0 Multiple Vulnerabilities (UNIX)");
script_set_attribute(attribute:"synopsis", value:
"The remote database server is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"According to its version, the installation of IBM DB2 running on the remote host is either 9.7 prior to Fix Pack 11
Special Build 40162, 10.1 prior to Fix Pack 6 Special Build 40161, 10.5 prior to Fix Pack 11 Special Build 40160, or
11.1 prior to Fix Pack 5 Special Build 40159, 11.5 prior to Mod 4 Fix Pack 0. It is, therefore,
affected by one or more of the following vulnerabilities:
- IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is
vulnerable to a denial of service, caused by improper handling of Secure Sockets Layer (SSL) renegotiation
requests. By sending specially-crafted requests, a remote attacker could exploit this vulnerability to
increase the resource usage on the system. (CVE-2020-4355)
- IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is
vulnerable to a buffer overflow, caused by improper bounds checking which allows a local attacker to
execute arbitrary code on the system with root privileges. (CVE-2020-4363)
- IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 allows a
local user to obtain sensitive information using a race condition of a symbolic link. (CVE-2020-4386,
CVE-2020-4387)
- IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 allows a
local attacker to perform unauthorized actions on the system, caused by improper usage of shared memory.
By sending a specially-crafted request, an attacker can exploit this vulnerability to obtain sensitive
information or cause a denial of service (DoS). (CVE-2020-4414)
- IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could
allow an unauthenticated attacker to cause a denial of service due a hang in the execution of a terminate
command. (CVE-2020-4420)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://www.ibm.com/support/pages/node/6242342");
script_set_attribute(attribute:"see_also", value:"https://www.ibm.com/support/pages/node/6242332");
script_set_attribute(attribute:"see_also", value:"https://www.ibm.com/support/pages/node/6242336");
script_set_attribute(attribute:"see_also", value:"https://www.ibm.com/support/pages/node/6242350");
script_set_attribute(attribute:"see_also", value:"https://www.ibm.com/support/pages/node/6242356");
script_set_attribute(attribute:"see_also", value:"https://www.ibm.com/support/pages/node/6242362");
script_set_attribute(attribute:"solution", value:
"Apply the appropriate IBM DB2 Fix Pack or Special Build based on the most recent fix pack level for your branch.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-4363");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/06/30");
script_set_attribute(attribute:"patch_publication_date", value:"2020/06/30");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/09");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:db2");
script_set_attribute(attribute:"agent", value:"all");
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) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("db2_installed.nbin");
script_require_keys("installed_sw/DB2 Server");
script_exclude_keys("SMB/db2/Installed");
exit(0);
}
include('vcf_extras_db2.inc');
# The remote host's OS is Windows, not Linux.
if (get_kb_item('SMB/db2/Installed'))
audit(AUDIT_OS_NOT, 'Linux', 'Windows');
var app_info = vcf::ibm_db2::get_app_info();
# DB2 has an optional OpenSSH server that will run on
# windows. We need to exit out if we picked up the windows
# installation that way.
if ('Windows' >< app_info['platform'])
audit(AUDIT_HOST_NOT, 'a Linux based operating system');
var constraints = [
{'equal':'9.7.0.11', 'fixed_build':'40162'},
{'equal':'10.1.0.6', 'fixed_build':'40161'},
{'equal':'10.5.0.11', 'fixed_build':'40160'},
{'equal':'11.1.4.5', 'fixed_build':'40159'},
{'min_version':'9.7', 'fixed_version':'9.7.0.11', 'fixed_display':'9.7.0.11 + Special Build 40162'},
{'min_version':'10.1', 'fixed_version':'10.1.0.6', 'fixed_display':'10.1.0.6 + Special Build 40161'},
{'min_version':'10.5', 'fixed_version':'10.5.0.11', 'fixed_display':'10.5.0.11 + Special Build 40160'},
{'min_version':'11.1', 'fixed_version':'11.1.4.5', 'fixed_display':'11.1.4.5 + Special Build 40159'},
{'min_version':'11.5', 'fixed_version':'11.5.4.0'}
];
vcf::ibm_db2::check_version_and_report(
app_info:app_info,
constraints:constraints,
severity:SECURITY_NOTE
);
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4355
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4363
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4386
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4387
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4414
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4420
www.ibm.com/support/pages/node/6242332
www.ibm.com/support/pages/node/6242336
www.ibm.com/support/pages/node/6242342
www.ibm.com/support/pages/node/6242350
www.ibm.com/support/pages/node/6242356
www.ibm.com/support/pages/node/6242362
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
47.7%