Vulnerabilities > CVE-2014-0819 - Improper Input Validation vulnerability in Autodesk Autocad

047910
CVSS 4.4 - MEDIUM
Attack vector
LOCAL
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
local
autodesk
CWE-20
nessus

Summary

Untrusted search path vulnerability in Autodesk AutoCAD before 2014 allows local users to gain privileges via a Trojan horse DLL in the current working directory.

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

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-2014-0819 Autodesk AutoCAD是一款强大的大型计算机辅助绘图软件。 Autodesk AutoCAD不正确处理搜索路径,允许本地攻击者利用漏洞在当前工作目录存放木马DLL来提升权限。 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:61550
last seen2017-11-19
modified2014-02-25
published2014-02-25
reporterRoot
titleAutodesk AutoCAD不可信搜索路径权限提升漏洞