Vulnerabilities > CVE-2018-1923 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in IBM DB2

047910
CVSS 7.8 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
local
low complexity
ibm
CWE-119
nessus
NVD
Published: 2019-03-11
Updated: 2024-11-21

Summary

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, and 11.1 is affected by buffer overflow vulnerability that can potentially result in arbitrary code execution. IBM X-Force ID: 152859.

Vulnerable Configurations

Part Description Count
Application
Ibm
4
OS
Linux
1
OS
Microsoft
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

NASL familyGeneral
NASL idIBM_SPECTRUM_PROTECT_8_1_8.NASL
descriptionIBM Spectrum Protect, formerly known as Tivoli Storage Manager, installed on the remote host is version 7.1.x < 7.1.9.300 or 8.1.x < 8.1.8. It is, therefore, affected by multiple IBM Db2 remote code execution and privilege escalation vulnerabilities. These vulnerabilities could allow an attacker to gain system-level access to the affected host. Note that Nessus has not tested for this issue but has instead relied only on the application
last seen2020-03-18
modified2019-07-24
plugin id126987
published2019-07-24
reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/126987
titleIBM Spectrum Protect 7.1.x < 7.1.9.300 / 8.1.x < 8.1.8 Multiple Vulnerabilities
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(126987);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/02/28");

  script_cve_id(
    "CVE-2018-1922",
    "CVE-2018-1923",
    "CVE-2018-1936",
    "CVE-2018-1978",
    "CVE-2018-1980",
    "CVE-2019-4014",
    "CVE-2019-4015",
    "CVE-2019-4016",
    "CVE-2019-4094"
  );
  script_bugtraq_id(
    107398,
    107439,
    107686,
    107985
  );

  script_name(english:"IBM Spectrum Protect 7.1.x < 7.1.9.300 / 8.1.x < 8.1.8 Multiple Vulnerabilities");
  script_summary(english:"Checks the version of IBM Spectrum Protect.");

  script_set_attribute(attribute:"synopsis", value:
"The backup service installed on the remote host is affected by
multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"IBM Spectrum Protect, formerly known as Tivoli Storage Manager,
installed on the remote host is version 7.1.x < 7.1.9.300 or 8.1.x <
8.1.8. It is, therefore, affected by multiple IBM Db2 remote code
execution and privilege escalation vulnerabilities. These
vulnerabilities could allow an attacker to gain system-level access to
the affected host.

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:"http://www.ibm.com/support/docview.wss?uid=ibm10882974");
  script_set_attribute(attribute:"solution", value:
"Upgrade to IBM Spectrum Protect 7.1.9.300 or 8.1.8 or later.");
  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-2019-4094");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/06/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/07/24");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:tivoli_storage_manager");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/a:ibm:spectrum_protect");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"General");

  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ibm_tsm_detect.nasl", "ibm_spectrum_protect_installed.nbin");
  script_require_ports("installed_sw/IBM Tivoli Storage Manager", "installed_sw/IBM Spectrum Protect");

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

port = get_service(svc:'tsm-agent');

app_info = vcf::ibm::spectrum_protect::get_app_info(port:port);

vcf::check_granularity(app_info:app_info, sig_segments:2);

constraints = [
  { 'min_version' : '7.1', 'max_version' : '7.1.9.200', 'fixed_version' : '7.1.9.300' },
  { 'min_version' : '8.1', 'fixed_version' : '8.1.8' }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);

References