Vulnerabilities > CVE-2012-6535 - Code Injection vulnerability in Djvulibre Project Djvulibre

047910
CVSS 9.3 - CRITICAL
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
djvulibre-project
CWE-94
critical
nessus

Summary

DjVuLibre before 3.5.25.3, as used in Evince, Sumatra PDF Reader, VuDroid, and other products, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted DjVu (aka .djv) file.

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 familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201402-13.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201402-13 (DjVu: User-assisted execution of arbitrary code) A vulnerability has been discovered in DjVu. Please review the CVE identifier referenced below for details. Impact : A remote attacker could entice a user to open a specially crafted DjVu file, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id72414
    published2014-02-10
    reporterThis script is Copyright (C) 2014-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/72414
    titleGLSA-201402-13 : DjVu: User-assisted execution of arbitrary code
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Gentoo Linux Security Advisory GLSA 201402-13.
    #
    # The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
    # and licensed under the Creative Commons - Attribution / Share Alike 
    # license. See http://creativecommons.org/licenses/by-sa/3.0/
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(72414);
      script_version("1.6");
      script_cvs_date("Date: 2018/07/12 19:01:15");
    
      script_cve_id("CVE-2012-6535");
      script_bugtraq_id(58610);
      script_xref(name:"GLSA", value:"201402-13");
    
      script_name(english:"GLSA-201402-13 : DjVu: User-assisted execution of arbitrary code");
      script_summary(english:"Checks for updated package(s) in /var/db/pkg");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:
    "The remote Gentoo host is missing one or more security-related
    patches."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "The remote host is affected by the vulnerability described in GLSA-201402-13
    (DjVu: User-assisted execution of arbitrary code)
    
        A vulnerability has been discovered in DjVu. Please review the CVE
          identifier referenced below for details.
      
    Impact :
    
        A remote attacker could entice a user to open a specially crafted DjVu
          file, possibly resulting in execution of arbitrary code with the
          privileges of the process or a Denial of Service condition.
      
    Workaround :
    
        There is no known workaround at this time."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security.gentoo.org/glsa/201402-13"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "All DjVu users should upgrade to the latest version:
          # emerge --sync
          # emerge --ask --oneshot --verbose '>=app-text/djvu-3.5.25.3'"
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
      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:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:djvu");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2014/02/09");
      script_set_attribute(attribute:"plugin_publication_date", value:"2014/02/10");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");
      script_family(english:"Gentoo Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("qpkg.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
    if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    
    if (qpkg_check(package:"app-text/djvu", unaffected:make_list("ge 3.5.25.3"), vulnerable:make_list("lt 3.5.25.3"))) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = qpkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "DjVu");
    }
    
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-2056-1.NASL
    descriptionIt was discovered that DjVuLibre incorrectly handled certain memory operations. If a user or automated system were tricked into processing a specially crafted DjVu file, applications could be made to crash, resulting in a denial of service, or possibly execute arbitrary code. 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 id71493
    published2013-12-17
    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/71493
    titleUbuntu 12.04 LTS : djvulibre vulnerability (USN-2056-1)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Ubuntu Security Notice USN-2056-1. 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(71493);
      script_version("1.6");
      script_cvs_date("Date: 2019/09/19 12:54:29");
    
      script_cve_id("CVE-2012-6535");
      script_bugtraq_id(58610);
      script_xref(name:"USN", value:"2056-1");
    
      script_name(english:"Ubuntu 12.04 LTS : djvulibre vulnerability (USN-2056-1)");
      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 discovered that DjVuLibre incorrectly handled certain memory
    operations. If a user or automated system were tricked into processing
    a specially crafted DjVu file, applications could be made to crash,
    resulting in a denial of service, or possibly execute arbitrary code.
    
    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/2056-1/"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected libdjvulibre21 package."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
      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:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libdjvulibre21");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.04:-:lts");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2013/12/02");
      script_set_attribute(attribute:"patch_publication_date", value:"2013/12/16");
      script_set_attribute(attribute:"plugin_publication_date", value:"2013/12/17");
      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:"^(12\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 12.04", "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:"12.04", pkgname:"libdjvulibre21", pkgver:"3.5.24-9ubuntu0.1")) flag++;
    
    if (flag)
    {
      security_report_v4(
        port       : 0,
        severity   : SECURITY_HOLE,
        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, "libdjvulibre21");
    }
    
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-2844.NASL
    descriptionIt was discovered that djvulibre, the Open Source DjVu implementation project, can be crashed or possibly make it execute arbitrary code when processing a specially crafted djvu file.
    last seen2020-03-17
    modified2014-01-16
    plugin id71980
    published2014-01-16
    reporterThis script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/71980
    titleDebian DSA-2844-1 : djvulibre - arbitrary code execution
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Debian Security Advisory DSA-2844. The text 
    # itself is copyright (C) Software in the Public Interest, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(71980);
      script_version("1.6");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");
    
      script_cve_id("CVE-2012-6535");
      script_bugtraq_id(58610);
      script_xref(name:"DSA", value:"2844");
    
      script_name(english:"Debian DSA-2844-1 : djvulibre - arbitrary code execution");
      script_summary(english:"Checks dpkg output for the updated package");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Debian host is missing a security-related update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "It was discovered that djvulibre, the Open Source DjVu implementation
    project, can be crashed or possibly make it execute arbitrary code
    when processing a specially crafted djvu file."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://packages.debian.org/source/squeeze/djvulibre"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.debian.org/security/2014/dsa-2844"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "Upgrade the djvulibre packages.
    
    For the oldstable distribution (squeeze), this problem has been fixed
    in version 3.5.23-3+squeeze1.
    
    This problem has been fixed before the release of the stable
    distribution (wheezy), therefore it is not affected."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
      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:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:djvulibre");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2014/01/15");
      script_set_attribute(attribute:"plugin_publication_date", value:"2014/01/16");
      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:"Debian Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("debian_package.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
    if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    if (deb_check(release:"6.0", prefix:"djview", reference:"3.5.23-3+squeeze1")) flag++;
    if (deb_check(release:"6.0", prefix:"djview3", reference:"3.5.23-3+squeeze1")) flag++;
    if (deb_check(release:"6.0", prefix:"djvulibre-bin", reference:"3.5.23-3+squeeze1")) flag++;
    if (deb_check(release:"6.0", prefix:"djvulibre-dbg", reference:"3.5.23-3+squeeze1")) flag++;
    if (deb_check(release:"6.0", prefix:"djvulibre-desktop", reference:"3.5.23-3+squeeze1")) flag++;
    if (deb_check(release:"6.0", prefix:"djvulibre-plugin", reference:"3.5.23-3+squeeze1")) flag++;
    if (deb_check(release:"6.0", prefix:"djvuserve", reference:"3.5.23-3+squeeze1")) flag++;
    if (deb_check(release:"6.0", prefix:"libdjvulibre-dev", reference:"3.5.23-3+squeeze1")) flag++;
    if (deb_check(release:"6.0", prefix:"libdjvulibre-text", reference:"3.5.23-3+squeeze1")) flag++;
    if (deb_check(release:"6.0", prefix:"libdjvulibre21", reference:"3.5.23-3+squeeze1")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
      else security_hole(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");