Vulnerabilities > CVE-2016-1841 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Apple products

047910
CVSS 8.8 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
apple
CWE-119
nessus

Summary

libxslt, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

Vulnerable Configurations

Part Description Count
OS
Apple
239

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.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3271-1.NASL
    descriptionHolger Fuhrmannek discovered an integer overflow in the xsltAddTextString() function in Libxslt. An attacker could use this to craft a malicious document that, when opened, could cause a denial of service (application crash) or possible execute arbitrary code. (CVE-2017-5029) Nicolas Gregoire discovered that Libxslt mishandled namespace nodes. An attacker could use this to craft a malicious document that, when opened, could cause a denial of service (application crash) or possibly execute arbtrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 14.04 LTS, and Ubuntu 12.04 LTS. (CVE-2016-1683) Sebastian Apelt discovered that a use-after-error existed in the xsltDocumentFunctionLoadDocument() function in Libxslt. An attacker could use this to craft a malicious document that, when opened, could cause a denial of service (application crash) or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 14.04 LTS, and Ubuntu 12.04 LTS. (CVE-2016-1841) It was discovered that a type confusion error existed in the xsltStylePreCompute() function in Libxslt. An attacker could use this to craft a malicious XML file that, when opened, caused a denial of service (application crash). This issue only affected Ubuntu 14.04 LTS and Ubuntu 12.04 LTS. (CVE-2015-7995) Nicolas Gregoire discovered the Libxslt mishandled the
    last seen2020-06-01
    modified2020-06-02
    plugin id99725
    published2017-04-28
    reporterUbuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/99725
    titleUbuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 / 17.04 : libxslt vulnerabilities (USN-3271-1)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Ubuntu Security Notice USN-3271-1. 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(99725);
      script_version("3.6");
      script_cvs_date("Date: 2019/09/18 12:31:47");
    
      script_cve_id("CVE-2015-7995", "CVE-2016-1683", "CVE-2016-1684", "CVE-2016-1841", "CVE-2016-4738", "CVE-2017-5029");
      script_xref(name:"USN", value:"3271-1");
    
      script_name(english:"Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 / 17.04 : libxslt vulnerabilities (USN-3271-1)");
      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:
    "Holger Fuhrmannek discovered an integer overflow in the
    xsltAddTextString() function in Libxslt. An attacker could use this to
    craft a malicious document that, when opened, could cause a denial of
    service (application crash) or possible execute arbitrary code.
    (CVE-2017-5029)
    
    Nicolas Gregoire discovered that Libxslt mishandled namespace nodes.
    An attacker could use this to craft a malicious document that, when
    opened, could cause a denial of service (application crash) or
    possibly execute arbtrary code. This issue only affected Ubuntu 16.04
    LTS, Ubuntu 14.04 LTS, and Ubuntu 12.04 LTS. (CVE-2016-1683)
    
    Sebastian Apelt discovered that a use-after-error existed in the
    xsltDocumentFunctionLoadDocument() function in Libxslt. An attacker
    could use this to craft a malicious document that, when opened, could
    cause a denial of service (application crash) or possibly execute
    arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu
    14.04 LTS, and Ubuntu 12.04 LTS. (CVE-2016-1841)
    
    It was discovered that a type confusion error existed in the
    xsltStylePreCompute() function in Libxslt. An attacker could use this
    to craft a malicious XML file that, when opened, caused a denial of
    service (application crash). This issue only affected Ubuntu 14.04 LTS
    and Ubuntu 12.04 LTS. (CVE-2015-7995)
    
    Nicolas Gregoire discovered the Libxslt mishandled the 'i' and 'a'
    format tokens for xsl:number data. An attacker could use this to craft
    a malicious document that, when opened, could cause a denial of
    service (application crash). This issue only affected Ubuntu 16.04
    LTS, Ubuntu 14.04 LTS, and Ubuntu 12.04 LTS. (CVE-2016-1684)
    
    It was discovered that the xsltFormatNumberConversion() function in
    Libxslt did not properly handle empty decimal separators. An attacker
    could use this to craft a malicious document that, when opened, could
    cause a denial of service (application crash). This issue only
    affected Ubuntu 16.10, Ubuntu 16.04 LTS, Ubuntu 14.04 LTS, and Ubuntu
    12.04 LTS. (CVE-2016-4738).
    
    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/3271-1/"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected libxslt1.1 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_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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:"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:libxslt1.1");
      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:14.04");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.10");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:17.04");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2015/11/17");
      script_set_attribute(attribute:"patch_publication_date", value:"2017/04/27");
      script_set_attribute(attribute:"plugin_publication_date", value:"2017/04/28");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 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|14\.04|16\.04|16\.10|17\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 12.04 / 14.04 / 16.04 / 16.10 / 17.04", "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:"libxslt1.1", pkgver:"1.1.26-8ubuntu1.4")) flag++;
    if (ubuntu_check(osver:"14.04", pkgname:"libxslt1.1", pkgver:"1.1.28-2ubuntu0.1")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"libxslt1.1", pkgver:"1.1.28-2.1ubuntu0.1")) flag++;
    if (ubuntu_check(osver:"16.10", pkgname:"libxslt1.1", pkgver:"1.1.29-1ubuntu0.1")) flag++;
    if (ubuntu_check(osver:"17.04", pkgname:"libxslt1.1", pkgver:"1.1.29-2ubuntu0.1")) 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, "libxslt1.1");
    }
    
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2019-320D5295FC.NASL
    descriptionUpdate to 1.1.33 Fix CVE-2016-1841, CVE-2016-4607, CVE-2016-4608, CVE-2016-4610, CVE-2016-4609, CVE-2019-11068, CVE-2016-1684, CVE-2016-1683, CVE-2016-4738. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. 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 id126015
    published2019-06-19
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/126015
    titleFedora 30 : mingw-libxslt (2019-320d5295fc)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Fedora Security Advisory FEDORA-2019-320d5295fc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(126015);
      script_version("1.3");
      script_cvs_date("Date: 2020/01/10");
    
      script_cve_id("CVE-2016-1683", "CVE-2016-1684", "CVE-2016-1841", "CVE-2016-4607", "CVE-2016-4608", "CVE-2016-4609", "CVE-2016-4610", "CVE-2016-4738", "CVE-2019-11068");
      script_xref(name:"FEDORA", value:"2019-320d5295fc");
    
      script_name(english:"Fedora 30 : mingw-libxslt (2019-320d5295fc)");
      script_summary(english:"Checks rpm output for the updated package.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Fedora host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "Update to 1.1.33
    
    Fix CVE-2016-1841, CVE-2016-4607, CVE-2016-4608, CVE-2016-4610,
    CVE-2016-4609, CVE-2019-11068, CVE-2016-1684, CVE-2016-1683,
    CVE-2016-4738.
    
    Note that Tenable Network Security has extracted the preceding
    description block directly from the Fedora update system website.
    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://bodhi.fedoraproject.org/updates/FEDORA-2019-320d5295fc"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected mingw-libxslt 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_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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-2016-4738");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:mingw-libxslt");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:30");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2016/05/20");
      script_set_attribute(attribute:"patch_publication_date", value:"2019/06/18");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/06/19");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Fedora Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");
    
      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/RedHat/release");
    if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
    os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
    os_ver = os_ver[1];
    if (! preg(pattern:"^30([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 30", "Fedora " + os_ver);
    
    if (!get_kb_item("Host/RedHat/rpm-list")) 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, "Fedora", cpu);
    
    
    flag = 0;
    if (rpm_check(release:"FC30", reference:"mingw-libxslt-1.1.33-1.fc30")) flag++;
    
    
    if (flag)
    {
      security_report_v4(
        port       : 0,
        severity   : SECURITY_HOLE,
        extra      : rpm_report_get()
      );
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "mingw-libxslt");
    }
    
  • NASL familyMacOS X Local Security Checks
    NASL idMACOSX_SECUPD2016-003.NASL
    descriptionThe remote host is running a version of Mac OS X that is 10.9.5 or 10.10.5 and is missing Security Update 2016-003. It is, therefore, affected by multiple vulnerabilities in the following components : - AMD - Captive Network Assistant - libxml2 - libxslt - OpenGL Note that successful exploitation of the most serious issues can result in arbitrary code execution.
    last seen2020-06-01
    modified2020-06-02
    plugin id91229
    published2016-05-19
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/91229
    titleMac OS X 10.9.5 / 10.10.5 Multiple Vulnerabilities (Security Update 2016-003)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(91229);
      script_version("1.10");
      script_cvs_date("Date: 2019/11/14");
    
      script_cve_id(
        "CVE-2016-1791",
        "CVE-2016-1800",
        "CVE-2016-1833",
        "CVE-2016-1834",
        "CVE-2016-1835",
        "CVE-2016-1836",
        "CVE-2016-1837",
        "CVE-2016-1838",
        "CVE-2016-1839",
        "CVE-2016-1840",
        "CVE-2016-1841",
        "CVE-2016-1847"
      );
      script_bugtraq_id(90696);
      script_xref(name:"APPLE-SA", value:"APPLE-SA-2016-05-16-4");
    
      script_name(english:"Mac OS X 10.9.5 / 10.10.5 Multiple Vulnerabilities (Security Update 2016-003)");
      script_summary(english:"Checks for the presence of Security Update 2016-003.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote host is missing a Mac OS X update that fixes multiple
    vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The remote host is running a version of Mac OS X that is 10.9.5 or
    10.10.5 and is missing Security Update 2016-003. It is, therefore,
    affected by multiple vulnerabilities in the following components :
    
      - AMD
      - Captive Network Assistant
      - libxml2
      - libxslt
      - OpenGL
    
    Note that successful exploitation of the most serious issues can
    result in arbitrary code execution.");
      script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT206567");
      # http://lists.apple.com/archives/security-announce/2016/May/msg00004.html
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?46de3fda");
      script_set_attribute(attribute:"solution", value:
    "Install Security Update 2016-003 or later.");
      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:POC/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-1834");
    
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2016/05/17");
      script_set_attribute(attribute:"patch_publication_date", value:"2016/05/17");
      script_set_attribute(attribute:"plugin_publication_date", value:"2016/05/19");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"MacOS X Local Security Checks");
    
      script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version", "Host/MacOSX/packages/boms");
    
      exit(0);
    }
    
    include("audit.inc");
    include("global_settings.inc");
    include("misc_func.inc");
    
    patch = "2016-003";
    
    # Compare 2 patch numbers to determine if patch requirements are satisfied.
    # Return true if this patch or a later patch is applied
    # Return false otherwise
    function check_patch(year, number)
    {
      local_var p_split = split(patch, sep:"-");
      local_var p_year  = int( p_split[0]);
      local_var p_num   = int( p_split[1]);
    
      if (year >  p_year) return TRUE;
      else if (year <  p_year) return FALSE;
      else if (number >=  p_num) return TRUE;
      else return FALSE;
    }
    
    if (!get_kb_item("Host/local_checks_enabled"))
      audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    
    os = get_kb_item("Host/MacOSX/Version");
    if (!os)
      audit(AUDIT_OS_NOT, "Mac OS X");
    
    if (!ereg(pattern:"Mac OS X 10\.(9|10)\.5([^0-9]|$)", string:os))
      audit(AUDIT_OS_NOT, "Mac OS X 10.9.5 or Mac OS X 10.10.5");
    
    packages = get_kb_item_or_exit("Host/MacOSX/packages/boms", exit_code:1);
    sec_boms_report = egrep(pattern:"^com\.apple\.pkg\.update\.security\..*bom$", string:packages);
    sec_boms = split(sec_boms_report, sep:'\n');
    
    foreach package (sec_boms)
    {
      # Grab patch year and number
      match = eregmatch(pattern:"[^0-9](20[0-9][0-9])[-.]([0-9]{3})[^0-9]", string:package);
      if (empty_or_null(match[1]) || empty_or_null(match[2]))
        continue;
    
      patch_found = check_patch(year:int(match[1]), number:int(match[2]));
      if (patch_found) exit(0, "The host has Security Update " + patch + " or later installed and is therefore not affected.");
    }
    
    report =  '\n  Missing security update : ' + patch;
    report += '\n  Installed security BOMs : ';
    if (sec_boms_report) report += str_replace(find:'\n', replace:'\n                            ', string:sec_boms_report);
    else report += 'n/a';
    report += '\n';
    
    security_report_v4(port:0, severity:SECURITY_HOLE, extra:report);
    
  • NASL familyMisc.
    NASL idAPPLETV_9_2_1.NASL
    descriptionAccording to its banner, the version of the remote Apple TV device is prior to 9.2.1. It is, therefore, affected by multiple vulnerabilities in the following components : - CFNetwork Proxies - CommonCrypto - CoreCapture - Disk Images - ImageIO - IOAcceleratorFamily - IOHIDFamily - Kernel - libc - libxml2 - libxslt - OpenGL - WebKit - WebKit Canvas Note that only 4th generation models are affected by the vulnerabilities.
    last seen2020-06-01
    modified2020-06-02
    plugin id91311
    published2016-05-24
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/91311
    titleApple TV < 9.2.1 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(91311);
      script_version("1.9");
      script_cvs_date("Date: 2019/11/14");
    
      script_cve_id(
        "CVE-2016-1801",
        "CVE-2016-1802",
        "CVE-2016-1803",
        "CVE-2016-1807",
        "CVE-2016-1808",
        "CVE-2016-1811",
        "CVE-2016-1813",
        "CVE-2016-1814",
        "CVE-2016-1817",
        "CVE-2016-1818",
        "CVE-2016-1819",
        "CVE-2016-1823",
        "CVE-2016-1824",
        "CVE-2016-1827",
        "CVE-2016-1828",
        "CVE-2016-1829",
        "CVE-2016-1830",
        "CVE-2016-1832",
        "CVE-2016-1833",
        "CVE-2016-1834",
        "CVE-2016-1836",
        "CVE-2016-1837",
        "CVE-2016-1838",
        "CVE-2016-1839",
        "CVE-2016-1840",
        "CVE-2016-1841",
        "CVE-2016-1847",
        "CVE-2016-1854",
        "CVE-2016-1855",
        "CVE-2016-1856",
        "CVE-2016-1857",
        "CVE-2016-1858",
        "CVE-2016-1859",
        "CVE-2016-4650"
      );
      script_xref(name:"APPLE-SA", value:"APPLE-SA-2016-05-16-1");
    
      script_name(english:"Apple TV < 9.2.1 Multiple Vulnerabilities");
      script_summary(english:"Checks the build number.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote device is affected by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "According to its banner, the version of the remote Apple TV device is
    prior to 9.2.1. It is, therefore, affected by multiple vulnerabilities
    in the following components :
    
      - CFNetwork Proxies
      - CommonCrypto
      - CoreCapture
      - Disk Images
      - ImageIO
      - IOAcceleratorFamily
      - IOHIDFamily
      - Kernel
      - libc
      - libxml2
      - libxslt
      - OpenGL
      - WebKit
      - WebKit Canvas
    
    Note that only 4th generation models are affected by the
    vulnerabilities.");
      script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT206564");
      # https://lists.apple.com/archives/security-announce/2016/May/msg00001.html
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?618f77f3");
      script_set_attribute(attribute:"solution", value:
    "Upgrade to Apple TV version 9.2.1 or later. Note that this update is
    only available for 4th generation models.");
      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:POC/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-4650");
    
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2016/05/16");
      script_set_attribute(attribute:"patch_publication_date", value:"2016/05/16");
      script_set_attribute(attribute:"plugin_publication_date", value:"2016/05/24");
    
      script_set_attribute(attribute:"plugin_type", value:"remote");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:apple:apple_tv");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Misc.");
    
      script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("appletv_version.nasl");
      script_require_keys("AppleTV/Version", "AppleTV/Model", "AppleTV/URL", "AppleTV/Port");
      script_require_ports("Services/www", 7000);
    
      exit(0);
    }
    
    include("audit.inc");
    include("appletv_func.inc");
    
    url = get_kb_item('AppleTV/URL');
    if (empty_or_null(url)) exit(0, 'Cannot determine Apple TV URL.');
    port = get_kb_item('AppleTV/Port');
    if (empty_or_null(port)) exit(0, 'Cannot determine Apple TV port.');
    
    build = get_kb_item('AppleTV/Version');
    if (empty_or_null(build)) audit(AUDIT_UNKNOWN_DEVICE_VER, 'Apple TV');
    
    model = get_kb_item('AppleTV/Model');
    if (empty_or_null(model)) exit(0, 'Cannot determine Apple TV model.');
    
    fixed_build = "13Y772";
    tvos_ver = '9.2.1';
    
    # determine gen from the model
    gen = APPLETV_MODEL_GEN[model];
    
    appletv_check_version(
      build          : build,
      fix            : fixed_build,
      affected_gen   : 4,
      fix_tvos_ver   : tvos_ver,
      model          : model,
      gen            : gen,
      port           : port,
      url            : url,
      severity       : SECURITY_HOLE
    );