Vulnerabilities > CVE-2014-0818 - Code Injection vulnerability in Autodesk Autocad

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
autodesk
CWE-94
nessus

Summary

Untrusted search path vulnerability in Autodesk AutoCAD before 2014 allows local users to gain privileges and execute arbitrary VBScript code via a Trojan horse FAS file in the FAS file search path.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Manipulating User-Controlled Variables
    This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An attacker can override environment variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the attacker can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.

Nessus

NASL familyWindows
NASL idAUTOCAD_2014.NASL
descriptionThe remote host has a version of Autodesk AutoCAD installed prior to AutoCAD 2014. It is, therefore, potentially affected by the following vulnerabilities : - An error exists related to handling FAS files that could allow execution of arbitrary VBScript code. (CVE-2014-0818) - An error exists related to dynamic library loading. The application insecurely looks in the current working directory when resolving DLL dependencies. Attackers may exploit the issue by placing a specially crafted DLL file and another file associated with the application in a location controlled by the attacker. When the associated file is launched, the attacker
last seen2020-06-01
modified2020-06-02
plugin id73291
published2014-04-01
reporterThis script is Copyright (C) 2014-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/73291
titleAutodesk AutoCAD < 2014 Multiple Vulnerabilities
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(73291);
  script_version("1.2");
  script_cvs_date("Date: 2018/06/27 18:42:27");

  script_cve_id("CVE-2014-0818", "CVE-2014-0819");
  script_bugtraq_id(65745, 65749);

  script_name(english:"Autodesk AutoCAD < 2014 Multiple Vulnerabilities");
  script_summary(english:"Checks Autodesk AutoCAD version");

  script_set_attribute(attribute:"synopsis", value:
"An application on the remote host is affected by multiple
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote host has a version of Autodesk AutoCAD installed prior to
AutoCAD 2014. It is, therefore, potentially affected by the following
vulnerabilities :

  - An error exists related to handling FAS files that
    could allow execution of arbitrary VBScript code.
    (CVE-2014-0818)

  - An error exists related to dynamic library loading.
    The application insecurely looks in the current working
    directory when resolving DLL dependencies. Attackers may
    exploit the issue by placing a specially crafted DLL
    file and another file associated with the application in
    a location controlled by the attacker. When the
    associated file is launched, the attacker's arbitrary
    code can be executed. (CVE-2014-0819)");
  script_set_attribute(attribute:"see_also", value:"http://jvn.jp/en/jp/JVN43254599/index.html");
  script_set_attribute(attribute:"see_also", value:"http://jvn.jp/en/jp/JVN33382534/index.html");
  script_set_attribute(attribute:"solution", value:"Upgrade to Autodesk AutoCAD 2014 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_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:"2014/02/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/03/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/04/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:autodesk:autocad");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");

  script_dependencies("autocad_installed.nbin");
  script_require_keys("SMB/Autodesk AutoCAD/Installed");
  exit(0);

}

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

get_kb_item_or_exit("SMB/Autodesk AutoCAD/Installed");
installs = get_kb_list_or_exit("SMB/Autodesk AutoCAD/*/Version");
kb_entry = branch(keys(installs));
kb_base = kb_entry - "/Version";

version = get_kb_item_or_exit(kb_entry);
path    = get_kb_item_or_exit(kb_base + "/Path");
flavor  = get_kb_item_or_exit(kb_base + "/Flavor");
display_name = get_kb_item_or_exit(kb_base + "/Display_Name");

sp  = get_kb_item(kb_base + "/SP");
if (isnull(sp)) sp = '';
else sp = ' ' + sp;

if (flavor != "Normal") audit(AUDIT_INST_VER_NOT_VULN, display_name + sp);

# Affected :
# AutoCAD before 2014 (19.1 version number)
if (version =~ "^R([0-9]|1[0-8]|19\.0)($|[^0-9])")
{
  port = get_kb_item('SMB/transport');
  if (!port) port = 445;

  if (report_verbosity > 0)
  {
    report += '\n  Product           : ' + display_name + sp +
              '\n  Path              : ' + path +
              '\n  Installed version : ' + version +
              '\n  Fixed version     : R19.1 (Autodesk AutoCAD 2014)\n';
    security_hole(port:port, extra:report);
  }
  else security_hole(port);
}
else audit(AUDIT_INST_PATH_NOT_VULN, display_name + sp, version, path);

Seebug

bulletinFamilyexploit
descriptionCVE ID:CVE-2014-0818 Autodesk AutoCAD是一款强大的大型计算机辅助绘图软件。 Autodesk AutoCAD打开文件时会加载特定的FAS文件,AutoCAD处理FAS文件搜索路径存在漏洞,允许攻击者利用漏洞加载任意VBscript代码。 0 Autodesk AutoCAD 2013 厂商补丁: Autodesk ----- 用户可联系厂商获得相应的升级或补丁程序: http://www.autodesk.com/products/autodesk-autocad/overview
idSSV:61549
last seen2017-11-19
modified2014-02-25
published2014-02-25
reporterRoot
titleAutodesk AutoCAD任意VBScript执行漏洞