Vulnerabilities > CVE-2016-1727 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple 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
webkitgtk
CWE-119
nessus

Summary

WebKit, as used in Apple iOS before 9.2.1, Safari before 9.0.3, and tvOS before 9.1.1, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-1724.

Vulnerable Configurations

Part Description Count
OS
Apple
193
Application
Apple
143
Application
Webkitgtk
195

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 familyMacOS X Local Security Checks
    NASL idMACOSX_SAFARI9_0_3.NASL
    descriptionThe version of Apple Safari installed on the remote Mac OS X host is prior to 9.0.3. It is, therefore, affected by the following vulnerabilities : - Multiple memory corruption vulnerabilities exist in WebKit due to improper validation of user-supplied input. A remote attacker, via a specially crafted website, can exploit these issues to execute arbitrary code or cause a denial of service. (CVE-2016-1723, CVE-2016-1724, CVE-2016-1725, CVE-2016-1726, CVE-2016-1727) - A flaw exists in the Cascading Style Sheets (CSS) implementation in WebKit CSS when handling the
    last seen2020-06-01
    modified2020-06-02
    plugin id88597
    published2016-02-05
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88597
    titleMac OS X : Apple Safari < 9.0.3 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(88597);
      script_version("1.5");
      script_cvs_date("Date: 2019/11/20");
    
      script_cve_id(
        "CVE-2016-1723",
        "CVE-2016-1724",
        "CVE-2016-1725",
        "CVE-2016-1726",
        "CVE-2016-1727",
        "CVE-2016-1728"
      );
      script_bugtraq_id(81263);
      script_xref(name:"APPLE-SA", value:"APPLE-SA-2016-01-19-3");
    
      script_name(english:"Mac OS X : Apple Safari < 9.0.3 Multiple Vulnerabilities");
      script_summary(english:"Checks the Safari version.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote host has a web browser installed that is affected by
    multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The version of Apple Safari installed on the remote Mac OS X host is
    prior to 9.0.3. It is, therefore, affected by the following
    vulnerabilities :
    
      - Multiple memory corruption vulnerabilities exist in
        WebKit due to improper validation of user-supplied
        input. A remote attacker, via a specially crafted
        website, can exploit these issues to execute arbitrary
        code or cause a denial of service. (CVE-2016-1723,
        CVE-2016-1724, CVE-2016-1725, CVE-2016-1726,
        CVE-2016-1727)
    
      - A flaw exists in the Cascading Style Sheets (CSS)
        implementation in WebKit CSS when handling the
        'a:visited button' CSS selector while evaluating the
        height of the containing element. A remote attacker
        can exploit this, via a crafted website, to obtain
        sensitive browser history information. (CVE-2016-1728)");
      script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT205730");
      # http://lists.apple.com/archives/security-announce/2016/Jan/msg00004.html
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c7e0375f");
      script_set_attribute(attribute:"solution", value:
    "Upgrade to Apple Safari version 9.0.3 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: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-2016-1727");
    
      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:"2016/01/19");
      script_set_attribute(attribute:"patch_publication_date", value:"2016/01/19");
      script_set_attribute(attribute:"plugin_publication_date", value:"2016/02/05");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:apple:safari");
      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("macosx_Safari31.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version", "MacOSX/Safari/Installed");
    
      exit(0);
    }
    
    include("audit.inc");
    include("global_settings.inc");
    include("misc_func.inc");
    
    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|11)([^0-9]|$)", string:os)) audit(AUDIT_OS_NOT, "Mac OS X 10.9 / 10.10 / 10.11");
    
    installed = get_kb_item_or_exit("MacOSX/Safari/Installed", exit_code:0);
    path    = get_kb_item_or_exit("MacOSX/Safari/Path", exit_code:1);
    version = get_kb_item_or_exit("MacOSX/Safari/Version", exit_code:1);
    
    fixed_version = "9.0.3";
    
    if (ver_compare(ver:version, fix:fixed_version, strict:FALSE) == -1)
    {
      if (report_verbosity > 0)
      {
        report =
          '\n  Path              : ' + path +
          '\n  Installed version : ' + version +
          '\n  Fixed version     : ' + fixed_version +
          '\n';
        security_hole(port:0, extra:report);
      }
      else security_hole(0);
    }
    else audit(AUDIT_INST_PATH_NOT_VULN, "Safari", version, path);
    
  • NASL familyMisc.
    NASL idAPPLETV_9_1_1.NASL
    descriptionAccording to its banner, the remote Apple TV device is a version prior to 9.1.1. It is, therefore, affected by the following vulnerabilities : - A type confusion error exists in the bundled libxslt library due to improper handling of invalid values. An attacker can exploit this to crash the application, resulting in a denial of service condition. (CVE-2015-7995) - A memory corruption issue exists due to improper validation of user-supplied input when handling disk images. A local attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-1717) - A use-after-free error exists in the IOHIDFamily API due to improper validation of user-supplied input. A local attacker can exploit this to dereference already freed memory, resulting in a denial of service condition or the execution of arbitrary code. (CVE-2016-1719) - A memory corruption issue exists in IOKit due to improper validation of user-supplied input. A local attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-1720) - A memory corruption issue exists in the Kernel due to improper validation of user-supplied input. A local attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-1721) - An overflow condition exists in the add_lockdown_session() function due to improper validation of user-supplied input. A local attacker can exploit this to cause a heap-based buffer overflow, resulting in a denial of service condition or the execution of arbitrary code. (CVE-2016-1722) - Multiple memory corruption issues exist in WebKit due to improper validation of user-supplied input. A remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-1724, CVE-2016-1727)
    last seen2020-06-01
    modified2020-06-02
    plugin id88418
    published2016-01-27
    reporterThis script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88418
    titleApple TV < 9.1.1 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(88418);
      script_version("1.13");
      script_cvs_date("Date: 2018/12/14 14:58:47");
    
      script_cve_id(
        "CVE-2015-7995",
        "CVE-2016-1717",
        "CVE-2016-1719",
        "CVE-2016-1720",
        "CVE-2016-1721",
        "CVE-2016-1722",
        "CVE-2016-1724",
        "CVE-2016-1727"
      );
      script_bugtraq_id(77325);
      script_xref(name:"APPLE-SA", value:"APPLE-SA-2016-01-25-1");
    
      script_name(english:"Apple TV < 9.1.1 Multiple Vulnerabilities");
      script_summary(english:"Checks the version in the banner.");
    
      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 remote Apple TV device is a version prior
    to 9.1.1. It is, therefore, affected by the following
    vulnerabilities :
    
      - A type confusion error exists in the bundled libxslt
        library due to improper handling of invalid values. An
        attacker can exploit this to crash the application,
        resulting in a denial of service condition.
        (CVE-2015-7995)
    
      - A memory corruption issue exists due to improper
        validation of user-supplied input when handling disk
        images. A local attacker can exploit this to cause a
        denial of service condition or the execution of
        arbitrary code. (CVE-2016-1717)
    
      - A use-after-free error exists in the IOHIDFamily API
        due to improper validation of user-supplied input. A
        local attacker can exploit this to dereference already
        freed memory, resulting in a denial of service condition
        or the execution of arbitrary code. (CVE-2016-1719)
    
      - A memory corruption issue exists in IOKit due to
        improper validation of user-supplied input. A local
        attacker can exploit this to cause a denial of service
        condition or the execution of arbitrary code.
        (CVE-2016-1720)
    
      - A memory corruption issue exists in the Kernel due to
        improper validation of user-supplied input. A local
        attacker can exploit this to cause a denial of service
        condition or the execution of arbitrary code.
        (CVE-2016-1721)
    
      - An overflow condition exists in the
        add_lockdown_session() function due to improper
        validation of user-supplied input. A local attacker can
        exploit this to cause a heap-based buffer overflow,
        resulting in a denial of service condition or the
        execution of arbitrary code. (CVE-2016-1722)
    
      - Multiple memory corruption issues exist in WebKit due to
        improper validation of user-supplied input. A remote
        attacker can exploit this to cause a denial of service
        condition or the execution of arbitrary code.
        (CVE-2016-1724, CVE-2016-1727)");
      script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT205729");
      # https://lists.apple.com/archives/security-announce/2016/Jan/msg00005.html
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cbf27a14");
      script_set_attribute(attribute:"solution", value:
    "Upgrade to Apple TV version 9.1.1 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:N/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-2016-1727");
      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:"2016/01/14");
      script_set_attribute(attribute:"patch_publication_date", value:"2016/01/14");
      script_set_attribute(attribute:"plugin_publication_date", value:"2016/01/27");
    
      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) 2016-2018 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 = "13U717";
    tvos_ver = '9.1.1';
    
    # 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
    );
    
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201706-15.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201706-15 (WebKitGTK+: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in WebKitGTK+. Please review the CVE identifiers referenced below for details. Impact : A remote attack can use multiple vectors to execute arbitrary code or cause a denial of service condition. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id100675
    published2017-06-08
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/100675
    titleGLSA-201706-15 : WebKitGTK+: Multiple vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Gentoo Linux Security Advisory GLSA 201706-15.
    #
    # The advisory text is Copyright (C) 2001-2017 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(100675);
      script_version("3.2");
      script_cvs_date("Date: 2019/04/10 16:10:17");
    
      script_cve_id("CVE-2015-2330", "CVE-2015-7096", "CVE-2015-7098", "CVE-2016-1723", "CVE-2016-1724", "CVE-2016-1725", "CVE-2016-1726", "CVE-2016-1727", "CVE-2016-1728", "CVE-2016-4692", "CVE-2016-4743", "CVE-2016-7586", "CVE-2016-7587", "CVE-2016-7589", "CVE-2016-7592", "CVE-2016-7598", "CVE-2016-7599", "CVE-2016-7610", "CVE-2016-7611", "CVE-2016-7623", "CVE-2016-7632", "CVE-2016-7635", "CVE-2016-7639", "CVE-2016-7640", "CVE-2016-7641", "CVE-2016-7642", "CVE-2016-7645", "CVE-2016-7646", "CVE-2016-7648", "CVE-2016-7649", "CVE-2016-7652", "CVE-2016-7654", "CVE-2016-7656", "CVE-2016-9642", "CVE-2016-9643", "CVE-2017-2350", "CVE-2017-2354", "CVE-2017-2355", "CVE-2017-2356", "CVE-2017-2362", "CVE-2017-2363", "CVE-2017-2364", "CVE-2017-2365", "CVE-2017-2366", "CVE-2017-2367", "CVE-2017-2369", "CVE-2017-2371", "CVE-2017-2373", "CVE-2017-2376", "CVE-2017-2377", "CVE-2017-2386", "CVE-2017-2392", "CVE-2017-2394", "CVE-2017-2395", "CVE-2017-2396", "CVE-2017-2405", "CVE-2017-2415", "CVE-2017-2419", "CVE-2017-2433", "CVE-2017-2442", "CVE-2017-2445", "CVE-2017-2446", "CVE-2017-2447", "CVE-2017-2454", "CVE-2017-2455", "CVE-2017-2457", "CVE-2017-2459", "CVE-2017-2460", "CVE-2017-2464", "CVE-2017-2465", "CVE-2017-2466", "CVE-2017-2468", "CVE-2017-2469", "CVE-2017-2470", "CVE-2017-2471", "CVE-2017-2475", "CVE-2017-2476", "CVE-2017-2481", "CVE-2017-2496", "CVE-2017-2504", "CVE-2017-2505", "CVE-2017-2506", "CVE-2017-2508", "CVE-2017-2510", "CVE-2017-2514", "CVE-2017-2515", "CVE-2017-2521", "CVE-2017-2525", "CVE-2017-2526", "CVE-2017-2528", "CVE-2017-2530", "CVE-2017-2531", "CVE-2017-2536", "CVE-2017-2539", "CVE-2017-2544", "CVE-2017-2547", "CVE-2017-2549", "CVE-2017-6980", "CVE-2017-6984");
      script_xref(name:"GLSA", value:"201706-15");
    
      script_name(english:"GLSA-201706-15 : WebKitGTK+: Multiple vulnerabilities");
      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-201706-15
    (WebKitGTK+: Multiple vulnerabilities)
    
        Multiple vulnerabilities have been discovered in WebKitGTK+. Please
          review the CVE identifiers referenced below for details.
      
    Impact :
    
        A remote attack can use multiple vectors to execute arbitrary code or
          cause 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/201706-15"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "All WebKitGTK+ users should upgrade to the latest version:
          # emerge --sync
          # emerge --ask --oneshot --verbose '>=net-libs/webkit-gtk-2.16.3:4'"
      );
      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:N/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:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:webkit-gtk");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2017/06/07");
      script_set_attribute(attribute:"plugin_publication_date", value:"2017/06/08");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      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:"net-libs/webkit-gtk", unaffected:make_list("ge 2.16.3"), vulnerable:make_list("lt 2.16.3"))) 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, "WebKitGTK+");
    }