Vulnerabilities > CVE-2016-8998 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in IBM Tivoli Storage Manager

047910
CVSS 6.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
SINGLE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
ibm
CWE-119
nessus

Summary

IBM Tivoli Storage Manager Server 7.1 could allow an authenticated user with TSM administrator privileges to cause a buffer overflow using a specially crafted SQL query and execute arbitrary code on the server. IBM Reference #: 1998747.

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_7_1_7_100.NASL
descriptionIBM Spectrum Protect, formerly known as Tivoli Storage Manager, installed on the remote host is version 7.1.1.0 through 7.1.7.0. It is, therefore, affected by a buffer overflow condition when handling the SELECT command in a SQL query due to improper validation of input. An authenticated, remote attacker with TSM administrator privileges can exploit this issue, via a specially crafted SQL query, to cause a denial of service condition or the execution of arbitrary code. Note that Nessus has not tested for this issue but has instead relied only on the application
last seen2020-04-23
modified2017-03-03
plugin id97524
published2017-03-03
reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/97524
titleIBM Spectrum Protect Server 7.1.1.0 - 7.1.7.0 SELECT Command RCE
code
#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(97524);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/04/21");

  script_cve_id("CVE-2016-8998");
  script_bugtraq_id(96443);
  script_xref(name:"IAVA", value:"2017-A-0049");

  script_name(english:"IBM Spectrum Protect Server 7.1.1.0 - 7.1.7.0 SELECT Command RCE");

  script_set_attribute(attribute:"synopsis", value:
"The backup service installed on the remote host is affected by a
remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"IBM Spectrum Protect, formerly known as Tivoli Storage Manager,
installed on the remote host is version 7.1.1.0 through 7.1.7.0. It
is, therefore, affected by a buffer overflow condition when handling
the SELECT command in a SQL query due to improper validation of input.
An authenticated, remote attacker with TSM administrator privileges
can exploit this issue, via a specially crafted SQL query, to cause a
denial of service condition or the execution of arbitrary code.

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-01.ibm.com/support/docview.wss?uid=swg21998747");
  script_set_attribute(attribute:"solution", value:
"Upgrade to IBM Spectrum Protect Server 7.1.7.100 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:P");
  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:H/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-2016-8998");
  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:"2017/02/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/02/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/03/03");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  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_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ibm_tsm_detect.nasl");
  script_require_keys("installed_sw/IBM Tivoli Storage Manager");
  script_require_ports("Services/tsm-agent");

  exit(0);
}

include('vcf.inc');

port = get_service(svc:'tsm-agent', exit_on_fail:TRUE);
app = 'IBM Tivoli Storage Manager';

app = vcf::get_app_info(app:app, port:port, service:TRUE);

# Starting with 7.1.3, IBM TSM is known as IBM Spectrum Protect
if (ver_compare(ver:app.version, fix:'7.1.3.0', strict:FALSE) >= 0)
  app.app = 'IBM Spectrum Protect';

constraints = [{'min_version' : '7.1.1.0', 'max_version' : '7.1.7.0', 'fixed_version' : '7.1.7.100'}];

vcf::check_version_and_report(
  app_info:app,
  constraints:constraints,
  severity:SECURITY_WARNING,
  strict:FALSE
);