Vulnerabilities > CVE-2017-1439 - Unspecified vulnerability in IBM DB2 and DB2 Connect

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

include("compat.inc");

if (description)
{
  script_id(103252);
  script_version("1.7");
  script_cvs_date("Date: 2019/11/12");

  script_cve_id(
    "CVE-2017-1420",
    "CVE-2017-1434",
    "CVE-2017-1438",
    "CVE-2017-1439",
    "CVE-2017-1452",
    "CVE-2017-1519"
  );

  script_name(english:"IBM DB2 9.7 < FP11 Special Build 36826 / 10.1 < FP6 Special Build 36827 / 10.5 < FP8 Special Build 36828 / 11.1.2.2 < FP2 Special Build 36792 Multiple Vulnerabilities (UNIX)");
  script_summary(english:"Checks the DB2 signature.");

  script_set_attribute(attribute:"synopsis", value:
"The remote database server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its version, the installation of IBM DB2 running on the
remote host is either 9.7 prior to fix pack 11 Special Build 36826,
10.1 prior to fix pack 6 Special Build 36827, 10.5 prior to fix
pack 7 Special Build 36828, or 11.1.2.2 prior to fix pack 2 Special 
Build 36792. It is, therefore, affected by multiple
vulnerabilities related to privilege escalation as described in the advisories.

Note: swg22007183 only affects 10.5.x and 11.1.2.2.x, and swg22005740 
only affects 11.1.2.2.x.");
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg22006061");
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg22006885");
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg22006109");
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg22007183");
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg22007186");
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg22005740");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate IBM DB2 Special Build based on the most recent
fix pack level for your branch.");
  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-2017-1452");

  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:"2016/09/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/09/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/09/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:db2");
  script_end_attributes();

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

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

  script_dependencies("db2_installed.nbin");
  script_require_keys("installed_sw/DB2 Server");
  script_exclude_keys("SMB/db2/Installed");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("install_func.inc");
include("db2_report_func.inc");

# The remote host's OS is Windows, not Linux.
if (get_kb_item("SMB/db2/Installed")) audit(AUDIT_OS_NOT, "Linux", "Windows");

app = "DB2 Server";
install  = get_single_install(app_name:app, exit_if_unknown_ver:TRUE);

# DB2 has an optional OpenSSH server that will run on 
# windows.  We need to exit out if we picked up the windows
# installation that way.
if ("Windows" >< install['platform'])
  audit(AUDIT_HOST_NOT, "Linux based operating system");

port     = install['port'];
version  = kb_version = install['version'];
path     = install['path'];
special_build = install['special_build'];
if(!port) port = 0;

if (empty_or_null(special_build)) special_build = "None";
if (special_build != "None") kb_version += " with Special Build " + special_build;

fix_ver = NULL;
fix_build = NULL;

if (version =~ "^9\.7\.")
{
  fix_ver = "9.7.0.11";
  fix_build = "36826";
}
else if (version =~ "^10\.1\.")
{
  fix_ver = "10.1.0.6";
  fix_build = "36827";
}
else if (version =~ "^10\.5\.")
{
  fix_ver = "10.5.0.8";
  fix_build = "36828";
}
else if (version =~ "^11\.")
{
  fix_ver = "11.1.2.2";
  fix_build = "36792";
}
else
  audit(AUDIT_INST_PATH_NOT_VULN, app, kb_version, path);

vuln = FALSE;
if (!isnull(fix_ver))
{
  cmp = ver_compare(ver:version, fix:fix_ver, strict:FALSE);
  # less than current fix pack
  if(cmp < 0)
    vuln = TRUE;
  else if (cmp == 0 && !isnull(fix_build))
  {
    # missing special build or less than current special build
    if (special_build == "None" || ver_compare(ver:special_build, fix:fix_build, strict:FALSE) < 0)
      vuln = TRUE;
  }
}

if (!vuln)
    audit(AUDIT_INST_PATH_NOT_VULN, app, kb_version, path);

report_db2(
    severity          : SECURITY_HOLE,
    port              : port,
    product           : app,
    path              : path,
    installed_version : version,
    fixed_version     : fix_ver,
    special_installed : special_build,
    special_fix       : fix_build);