Symantec Messaging Gateway 10.x < 10.6.4 Directory Traversal Vulnerability (SYM17-016)

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

include("compat.inc");

if (description)
{
  script_id(105509);
  script_version("1.7");
  script_cvs_date("Date: 2018/11/15 20:50:19");

  script_cve_id("CVE-2017-15532");
  script_bugtraq_id(102096);

  script_name(english:"Symantec Messaging Gateway 10.x < 10.6.4 Directory Traversal Vulnerability (SYM17-016)");
  script_summary(english:"Checks the Symantec Messaging Gateway version number.");

  script_set_attribute(attribute:"synopsis", value:
"A messaging security application running on the remote host is
affected by a directory traversal vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the Symantec Messaging
Gateway (SMG) running on the remote host is 10.x prior to 10.6.4.
It is, therefore, affected by a directory traversal vulnerability as
described in the vendor advisory.

Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number.");
  # https://support.symantec.com/en_US/article.SYMSA1425.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?33d2b5fb");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Symantec Messaging Gateway (SMG) version 10.6.4 or
later.");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:S/C:C/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:A/AC:L/PR:L/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-2017-15532");
  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/12/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/12/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/02");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:symantec:messaging_gateway");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("symantec_messaging_gateway_detect.nasl");
  script_require_keys("www/sym_msg_gateway");

  exit(0);
}

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

get_install_count(app_name:'sym_msg_gateway', exit_if_zero:TRUE);

port = get_http_port(default:443);
install = get_single_install(app_name:'sym_msg_gateway', port:port);
base_url = build_url(qs:install['dir'], port:port);

if (install['version'] == UNKNOWN_VER)
  audit(AUDIT_UNKNOWN_WEB_APP_VER, 'Symantec Messaging Gateway', base_url);
if (install['version'] !~ "^10(\.|$)")
  audit(AUDIT_WEB_APP_NOT_AFFECTED, 'Symantec Messaging Gateway', base_url, install['version']);
if (install['version'] =~ "^10(\.6)?$") audit(AUDIT_VER_NOT_GRANULAR, 'Symantec Messaging Gateway', port, install['version']);

if (
  install['version'] =~ "^10\.[0-5]($|[^0-9])" ||
  install['version'] =~ "^10\.6\.[0-3]($|[^0-9])"
)
{
  report =
    '\n  URL               : ' + base_url +
    '\n  Installed version : ' + install['version'] +
    '\n  Fixed version     : 10.6.4\n';

  security_report_v4(severity:SECURITY_WARNING, port:port, extra:report);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, 'Symantec Messaging Gateway', base_url, install['version']);