Vulnerabilities > CVE-2017-1375 - Inadequate Encryption Strength vulnerability in IBM Storwize Unified V7000 Software 1.5/1.6

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
NONE
Availability impact
NONE
network
low complexity
ibm
CWE-326
nessus
NVD
Published: 2017-10-24
Updated: 2024-11-21

Summary

IBM System Storage Storwize V7000 Unified (V7000U) 1.5 and 1.6 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 126868.

Vulnerable Configurations

Part Description Count
Application
Ibm
2

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 familyMisc.
NASL idIBM_STORWIZE_CVE-2017-1375.NASL
descriptionAccording to its self-reported version number, the IBM Storwize server running on the remote host uses a weak encryption algorithm that contains a flaw in the initial keystream generation that introduces several types of biases. These can be used in a cryptanalysis attack to disclose sensitive information.
last seen2020-06-01
modified2020-06-02
plugin id104388
published2017-11-03
reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/104388
titleIBM Storwize 1.5.x / 1.6.x < 1.6.2.0 RC4 Initial Keystream Bias Vulnerability (CVE-2017-1375)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(104388);
  script_version("1.6");
  script_cvs_date("Date: 2019/11/12");

  script_cve_id("CVE-2017-1375");
  script_bugtraq_id(101561);

  script_name(english:"IBM Storwize 1.5.x / 1.6.x < 1.6.2.0 RC4 Initial Keystream Bias Vulnerability (CVE-2017-1375)");
  script_summary(english:"Checks for vulnerable Storwize models.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by a weak encryption vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the IBM Storwize server
running on the remote host uses a weak encryption algorithm that
contains a flaw in the initial keystream generation that introduces
several types of biases. These can be used in a cryptanalysis attack
to disclose sensitive information.");
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=ssg1S1010657");
  script_set_attribute(attribute:"solution", value:
"Upgrade to IBM Storwize version 1.6.2.0 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:L/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-2017-1375");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/10/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/10/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/03");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:ibm:storwize_v7000_unified");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:storwize_v7000_software");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ibm_storwize_detect.nbin");
  script_require_ports("Host/IBM/Storwize/version", "Host/IBM/Storwize/machine_major", "Host/IBM/Storwize/display_name");

  exit(0);
}

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

version = get_kb_item_or_exit("Host/IBM/Storwize/version");
machine_major = get_kb_item_or_exit("Host/IBM/Storwize/machine_major");
display_name = get_kb_item_or_exit("Host/IBM/Storwize/display_name");

# audit out if it isn't an affected device
if (
  machine_major != "2073" # Storwize V7000 Unified
) audit(AUDIT_DEVICE_NOT_VULN, display_name);

if (version == UNKNOWN_VER)
  audit(AUDIT_UNKNOWN_APP_VER, display_name);

# 1.5.x and 1.6.x < 1.6.2.0
if (version =~ "^1\.[56]\.")
  fix = "1.6.2.0";
else audit(AUDIT_DEVICE_NOT_VULN, display_name, version);

if (ver_compare(ver:version, fix:fix) < 0)
{
  report =
    '\n  Name              : ' + display_name +
    '\n  Installed version : ' + version +
    '\n  Fixed version     : ' + fix +
    '\n';
  security_report_v4(severity:SECURITY_WARNING, port:0, extra:report);
}
else audit(AUDIT_DEVICE_NOT_VULN, display_name, version);

References