Vulnerabilities > CVE-2018-12243 - XXE vulnerability in Symantec Messaging Gateway

047910
CVSS 5.8 - MEDIUM
Attack vector
ADJACENT_NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
low complexity
symantec
CWE-611
nessus
NVD
Published: 2018-09-19
Updated: 2018-12-08

Summary

The Symantec Messaging Gateway product prior to 10.6.6 may be susceptible to a XML external entity (XXE) exploit, which is a type of issue where XML input containing a reference to an external entity is processed by a weakly configured XML parser. The attack uses file URI schemes or relative paths in the system identifier to access files that should not normally be accessible.

Vulnerable Configurations

Part Description Count
Application
Symantec
22

Common Weakness Enumeration (CWE)

Nessus

NASL familyCGI abuses
NASL idSYMANTEC_MESSAGING_GATEWAY_SYMSA1461.NASL
descriptionAccording to its self-reported version number, the Symantec Messaging Gateway (SMG) running on the remote host is 10.x prior to 10.6.6. It is, therefore, affected by multiple vulnerabilities as described in the vendor advisory. Note that Nessus has not tested for these issues but has instead relied only on the application
last seen2020-06-01
modified2020-06-02
plugin id117614
published2018-09-20
reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/117614
titleSymantec Messaging Gateway 10.x < 10.6.6 Multiple Vulnerabilities (SYMSA1461)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(117614);
  script_version("1.6");
  script_cvs_date("Date: 2019/11/01");

  script_cve_id("CVE-2018-12242", "CVE-2018-12243");
  script_bugtraq_id(105329, 105330);

  script_name(english:"Symantec Messaging Gateway 10.x < 10.6.6 Multiple Vulnerabilities (SYMSA1461)");
  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 multiple vulnerabilities.");
  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 10.6.6.
It is, therefore, affected by multiple vulnerabilities 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.");
  script_set_attribute(attribute:"see_also", value:"https://support.symantec.com/en_US/article.SYMSA1461.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Symantec Messaging Gateway (SMG) version 10.6.6 or
later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/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: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-2018-12242");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/09/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/09/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/09/20");

  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) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("symantec_messaging_gateway_detect.nasl");
  script_require_keys("www/sym_msg_gateway");
  script_require_ports("Services/www", 443);

  exit(0);
}

include("vcf.inc");
include("http.inc");

appname = 'sym_msg_gateway';
get_install_count(app_name:appname, exit_if_zero:TRUE);
port = get_http_port(default:443);
app_info = vcf::get_app_info(app:appname, port:port, webapp:true);

vcf::check_granularity(app_info:app_info, sig_segments:3);

constraints = [
  { "min_version" : "10.0.0", "fixed_version" : "10.6.6"}
];

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

References