Vulnerabilities > CVE-2020-4415 - Out-of-bounds Write vulnerability in IBM Spectrum Protect

#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(136547);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/15");

  script_cve_id("CVE-2020-4415");

  script_name(english:"IBM Spectrum Protect 7.1.x < 7.1.10.100 / 8.1.x < 8.1.9.300 Stack-based Buffer Overflow");

  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,
running on the remote host is version 7.1.x < 7.1.10.100 or 8.1.x <
8.1.9.300. It is, therefore, is vulnerable to a stack-based buffer
overflow which could allow an unauthenticated, remote attacker to
executive arbitrary code on the system or cause the IBM Spectrum
Protect Server to crash.

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/6195706");
  script_set_attribute(attribute:"solution", value:
"Upgrade to IBM Spectrum Protect 7.1.10.100 or 8.1.9.300 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:L/PR:N/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-2020-4415");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/13");

  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) 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', 'fixed_version' : '7.1.10.100' },
  { 'min_version' : '8.1', 'fixed_version' : '8.1.9.300' }
];

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