Vulnerabilities > CVE-2012-6076 - Permissions, Privileges, and Access Controls vulnerability in Inkscape

047910
CVSS 4.4 - MEDIUM
Attack vector
LOCAL
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
local
inkscape
CWE-264
nessus
NVD
Published: 2013-03-12
Updated: 2013-03-18

Summary

Inkscape before 0.48.4 reads .eps files from /tmp instead of the current directory, which might cause Inkspace to process unintended files, allow local users to obtain sensitive information, and possibly have other unspecified impacts.

Vulnerable Configurations

Part Description Count
Application
Inkscape
25

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • 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.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.

Nessus

  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2013-118.NASL
    descriptionInkscape was updated to fix two security issues : - inkscape occasionaly tries to open EPS files from /tmp (bnc#796306, CVE-2012-6076). - inkscape could load XML from external hosts (bnc#794958, CWE-827, CVE-2012-5656).
    last seen2020-06-05
    modified2014-06-13
    plugin id74889
    published2014-06-13
    reporterThis script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/74889
    titleopenSUSE Security Update : inkscape (openSUSE-SU-2013:0294-1)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2013-118.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(74889);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2012-5656", "CVE-2012-6076");

  script_name(english:"openSUSE Security Update : inkscape (openSUSE-SU-2013:0294-1)");
  script_summary(english:"Check for the openSUSE-2013-118 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Inkscape was updated to fix two security issues :

  - inkscape occasionaly tries to open EPS files from /tmp
    (bnc#796306, CVE-2012-6076).

  - inkscape could load XML from external hosts (bnc#794958,
    CWE-827, CVE-2012-5656)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=794958"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=796306"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.opensuse.org/opensuse-updates/2013-02/msg00041.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected inkscape packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:inkscape");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:inkscape-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:inkscape-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:inkscape-extensions-dia");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:inkscape-extensions-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:inkscape-extensions-fig");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:inkscape-extensions-gimp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:inkscape-extensions-skencil");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:inkscape-lang");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:12.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:12.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/02/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  exit(0);
}


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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE12\.1|SUSE12\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "12.1 / 12.2", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE12.1", reference:"inkscape-0.48.2-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"inkscape-debuginfo-0.48.2-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"inkscape-debugsource-0.48.2-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"inkscape-extensions-dia-0.48.2-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"inkscape-extensions-extra-0.48.2-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"inkscape-extensions-fig-0.48.2-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"inkscape-extensions-gimp-0.48.2-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"inkscape-extensions-skencil-0.48.2-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.1", reference:"inkscape-lang-0.48.2-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.2", reference:"inkscape-0.48.3.1-5.9.1") ) flag++;
if ( rpm_check(release:"SUSE12.2", reference:"inkscape-debuginfo-0.48.3.1-5.9.1") ) flag++;
if ( rpm_check(release:"SUSE12.2", reference:"inkscape-debugsource-0.48.3.1-5.9.1") ) flag++;
if ( rpm_check(release:"SUSE12.2", reference:"inkscape-extensions-dia-0.48.3.1-5.9.1") ) flag++;
if ( rpm_check(release:"SUSE12.2", reference:"inkscape-extensions-extra-0.48.3.1-5.9.1") ) flag++;
if ( rpm_check(release:"SUSE12.2", reference:"inkscape-extensions-fig-0.48.3.1-5.9.1") ) flag++;
if ( rpm_check(release:"SUSE12.2", reference:"inkscape-extensions-gimp-0.48.3.1-5.9.1") ) flag++;
if ( rpm_check(release:"SUSE12.2", reference:"inkscape-extensions-skencil-0.48.3.1-5.9.1") ) flag++;
if ( rpm_check(release:"SUSE12.2", reference:"inkscape-lang-0.48.3.1-5.9.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "inkscape");
}
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-1712-1.NASL
    descriptionIt was discoverd that Inkscape incorrectly handled XML external entities in SVG files. If a user were tricked into opening a specially crafted SVG file, Inkscape could possibly include external files in drawings, resulting in information disclosure. (CVE-2012-5656) It was discovered that Inkscape attempted to open certain files from the /tmp directory instead of the current directory. A local attacker could trick a user into opening a different file than the one that was intended. This issue only applied to Ubuntu 11.10, Ubuntu 12.04 LTS and Ubuntu 12.10. (CVE-2012-6076). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id64375
    published2013-01-31
    reporterUbuntu Security Notice (C) 2013-2019 Canonical, Inc. / NASL script (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/64375
    titleUbuntu 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : inkscape vulnerabilities (USN-1712-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1712-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(64375);
  script_version("1.10");
  script_cvs_date("Date: 2019/09/19 12:54:28");

  script_cve_id("CVE-2012-5656", "CVE-2012-6076");
  script_xref(name:"USN", value:"1712-1");

  script_name(english:"Ubuntu 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : inkscape vulnerabilities (USN-1712-1)");
  script_summary(english:"Checks dpkg output for updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Ubuntu host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discoverd that Inkscape incorrectly handled XML external
entities in SVG files. If a user were tricked into opening a specially
crafted SVG file, Inkscape could possibly include external files in
drawings, resulting in information disclosure. (CVE-2012-5656)

It was discovered that Inkscape attempted to open certain files from
the /tmp directory instead of the current directory. A local attacker
could trick a user into opening a different file than the one that was
intended. This issue only applied to Ubuntu 11.10, Ubuntu 12.04 LTS
and Ubuntu 12.10. (CVE-2012-6076).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/1712-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected inkscape package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:inkscape");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:11.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/01/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/01/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/01/31");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2013-2019 Canonical, Inc. / NASL script (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


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

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(10\.04|11\.10|12\.04|12\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 10.04 / 11.10 / 12.04 / 12.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"10.04", pkgname:"inkscape", pkgver:"0.47.0-2ubuntu2.1")) flag++;
if (ubuntu_check(osver:"11.10", pkgname:"inkscape", pkgver:"0.48.2-0ubuntu1.1")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"inkscape", pkgver:"0.48.3.1-1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"12.10", pkgname:"inkscape", pkgver:"0.48.3.1-1ubuntu6.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "inkscape");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_11_INKSCAPE-130220.NASL
    descriptioninkscape was updated to fix a XXE (Xml eXternal Entity) attack during rasterization of SVG images (CVE-2012-5656), where the rendering of malicious SVG images could have connected from inkscape to internal hosts. Also inkscape would have loaded .EPS files from untrusted /tmp occasionaly instead from the current directory. (CVE-2012-6076)
    last seen2020-06-05
    modified2013-02-27
    plugin id64906
    published2013-02-27
    reporterThis script is Copyright (C) 2013-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/64906
    titleSuSE 11.2 Security Update : inkscape (SAT Patch Number 7380)

References