Vulnerabilities > CVE-2018-1925 - Inadequate Encryption Strength vulnerability in IBM Websphere MQ 9.1.0.0/9.1.0.1/9.1.1

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
NONE
Availability impact
NONE
network
ibm
CWE-326
nessus

Summary

IBM WebShere MQ 9.1.0.0, 9.1.0.1, 9.1.1 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 152925.

Vulnerable Configurations

Part Description Count
Application
Ibm
7

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Brute Force
    In this attack, some asset (information, functionality, identity, etc.) is protected by a finite secret value. The attacker attempts to gain access to this asset by using trial-and-error to exhaustively explore all the possible secret values in the hope of finding the secret (or a value that is functionally equivalent) that will unlock the asset. Examples of secrets can include, but are not limited to, passwords, encryption keys, database lookup keys, and initial values to one-way functions. The key factor in this attack is the attackers' ability to explore the possible secret space rapidly. This, in turn, is a function of the size of the secret space and the computational power the attacker is able to bring to bear on the problem. If the attacker has modest resources and the secret space is large, the challenge facing the attacker is intractable. While the defender cannot control the resources available to an attacker, they can control the size of the secret space. Creating a large secret space involves selecting one's secret from as large a field of equally likely alternative secrets as possible and ensuring that an attacker is unable to reduce the size of this field using available clues or cryptanalysis. Doing this is more difficult than it sounds since elimination of patterns (which, in turn, would provide an attacker clues that would help them reduce the space of potential secrets) is difficult to do using deterministic machines, such as computers. Assuming a finite secret space, a brute force attack will eventually succeed. The defender must rely on making sure that the time and resources necessary to do so will exceed the value of the information. For example, a secret space that will likely take hundreds of years to explore is likely safe from raw-brute force attacks.
  • Encryption Brute Forcing
    An attacker, armed with the cipher text and the encryption algorithm used, performs an exhaustive (brute force) search on the key space to determine the key that decrypts the cipher text to obtain the plaintext.

Nessus

NASL familyWindows
NASL idWEBSPHERE_MQ_IBM10744713.NASL
descriptionAccording to its self-reported version, the IBM MQ server installed on the remote host is 9.1.0.x LTS < 9.1.0.2 LTS, or 9.1.1 CD and is therefore affected by an unspecified man in the middle vulnerability in the IBM MQ Console due to weaker than expected cryptographic algorithms.
last seen2020-06-01
modified2020-06-02
plugin id124567
published2019-05-03
reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/124567
titleIBM MQ 9.1.0.x LTS < 9.1.0.2 LTS / 9.1.1 CD Console Weak Cryptography Man in the Middle Vulnerability (CVE-2018-1925)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(124567);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/19");

  script_cve_id("CVE-2018-1925");
  script_bugtraq_id(108068);
  script_xref(name:"IAVA", value:"2019-A-0137-S");

  script_name(english:"IBM MQ 9.1.0.x LTS < 9.1.0.2 LTS / 9.1.1 CD Console Weak Cryptography Man in the Middle Vulnerability (CVE-2018-1925)");
  script_summary(english:"Checks the version of IBM MQ.");

  script_set_attribute(attribute:"synopsis", value:
"A message queuing service installed on the remote host is affected
by a man in the middle vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the IBM MQ server installed
on the remote host is 9.1.0.x LTS < 9.1.0.2 LTS, or 9.1.1 CD and is
therefore affected by an unspecified man in the middle vulnerability
in the IBM MQ Console due to weaker than expected cryptographic
algorithms.");
  script_set_attribute(attribute:"see_also", value:"https://www-01.ibm.com/support/docview.wss?uid=ibm10744713");
  script_set_attribute(attribute:"solution", value:
"Upgrade to IBM MQ 9.1.2 CD or IBM MQ 9.1.0.2 LTS as per the vendor
advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-1925");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/04/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/04/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/03");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:websphere_mq");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

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

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

  script_dependencies("websphere_mq_installed.nasl");
  script_require_keys("installed_sw/IBM WebSphere MQ");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("install_func.inc");

app_name = "IBM WebSphere MQ";
install  = get_single_install(app_name:app_name, exit_if_unknown_ver:TRUE);

version  = install['version'];
path = install['path'];
fix = NULL;
flag = FALSE;

# v9.1.0.0 - 9.1.0.1
if (version =~ "^9\.1\.0\.[01]$")
{
  fix = "9.1.0.2";
}
else if (version =~ "^9\.1\.1($|\.)")
{
  fix = "9.1.2";
}
else
  audit(AUDIT_INST_PATH_NOT_VULN, app_name, version, path);

if (ver_compare(ver:version, fix:fix, strict:FALSE) == -1)
{
  port = get_kb_item("SMB/transport");
  if (!port) port = 445;
  report =
    '\n  Path              : ' + path +
    '\n  Installed version : ' + version +
    '\n  Fixed version     : ' + fix +
    '\n';
  security_report_v4(port:port, extra:report, severity:SECURITY_WARNING);
}
else audit(AUDIT_INST_PATH_NOT_VULN, app_name, version, path);