Vulnerabilities > CVE-2016-4677 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Apple Iphone OS, Safari and Tvos

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
apple
CWE-119
nessus

Summary

An issue was discovered in certain Apple products. iOS before 10.1 is affected. Safari before 10.0.1 is affected. tvOS before 10.0.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Vulnerable Configurations

Part Description Count
OS
Apple
197
Application
Apple
146

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 familyMisc.
    NASL idAPPLETV_10_0_1.NASL
    descriptionAccording to its banner, the version of Apple TV on the remote device is prior to 10.0.1. It is, therefore, affected by multiple vulnerabilities : - A flaw exists in WebKit when handling the location attribute that allows an unauthenticated, remote attacker to bypass the cross-origin policies and disclose sensitive user information. (CVE-2016-4613) - An out-of-bounds read error exists in the FontParser component when handling specially crafted font files that allows an unauthenticated, remote attacker to disclose sensitive information. (CVE-2016-4660) - An unspecified flaw exists in the Sandbox Profiles component that allows a local attacker, via a specially crafted application, to disclose the metadata of photo directories. (CVE-2016-4664) - An unspecified flaw exists in the Sandbox Profiles component that allows a local attacker, via a specially crafted application, to disclose the metadata of audio recordings. (CVE-2016-4665) - Multiple memory corruption issues exist in Webkit due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit these to execute arbitrary code. (CVE-2016-4666, CVE-2016-4677, CVE-2016-7578) - Multiple unspecified flaws exist in the System Boot component, within MIG generated code, due to improper validation of input. A local attacker can exploit these to terminate the system or execute arbitrary code with elevated privileges. (CVE-2016-4669) - A memory corruption issue exists in the CoreGraphics component when handling specially crafted JPEG files. An unauthenticated, remote attacker can exploit this, via a specially crafted file, to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-4673) - An unspecified logic issue exists in libxpc that allows a local attacker to execute arbitrary code with root privileges. (CVE-2016-4675) - A flaw exists in libarchive due to improper path validation when creating temporary files during archive extraction. An unauthenticated, remote attacker can exploit this, via a symlink attack, to overwrite arbitrary files. (CVE-2016-4679) - An unspecified flaw exists in the Kernel component due to improper sanitization of input. A local attacker can exploit this to disclose kernel memory contents. (CVE-2016-4680) - An overflow condition exists in the FontParser component due to improper validation when parsing font files. An unauthenticated, remote attacker can exploit this to cause a buffer overflow, resulting in a denial of service condition or the execution of arbitrary code. (CVE-2016-4688) - A flaw exists in the CFNetwork Proxies component when handling proxy credentials that allows a man-in-the-middle attacker to disclose sensitive user information. (CVE-2016-7579) - A flaw exists in the AppleMobileFileIntegrity component due to improper validation of code signatures. A local attacker can exploit this to have a signed executable substitute code with the same team ID. (CVE-2016-7584) - Multiple race conditions exist in various IOKit drivers related to how they use task struct pointers. A local attacker can exploit this to execute arbitrary code with kernel-level privileges. (CVE-2016-7613) Note that only 4th generation models are affected by these vulnerabilities.
    last seen2020-06-01
    modified2020-06-02
    plugin id94337
    published2016-10-27
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/94337
    titleApple TV < 10.0.1 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(94337);
      script_version("1.10");
      script_cvs_date("Date: 2019/11/14");
    
      script_cve_id(
        "CVE-2016-4613",
        "CVE-2016-4660",
        "CVE-2016-4664",
        "CVE-2016-4665",
        "CVE-2016-4666",
        "CVE-2016-4669",
        "CVE-2016-4673",
        "CVE-2016-4675",
        "CVE-2016-4677",
        "CVE-2016-4679",
        "CVE-2016-4680",
        "CVE-2016-4688",
        "CVE-2016-7578",
        "CVE-2016-7579",
        "CVE-2016-7584",
        "CVE-2016-7613"
      );
      script_bugtraq_id(
        93849,
        93851,
        93853,
        93854,
        93856,
        93949,
        94116,
        94571,
        94572
      );
    
      script_name(english:"Apple TV < 10.0.1 Multiple Vulnerabilities");
      script_summary(english:"Checks the build number.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote Apple TV device is affected by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "According to its banner, the version of Apple TV on the remote device
    is prior to 10.0.1. It is, therefore, affected by multiple
    vulnerabilities :
    
      - A flaw exists in WebKit when handling the location
        attribute that allows an unauthenticated, remote
        attacker to bypass the cross-origin policies and
        disclose sensitive user information. (CVE-2016-4613)
    
      - An out-of-bounds read error exists in the FontParser
        component when handling specially crafted font files
        that allows an unauthenticated, remote attacker to
        disclose sensitive information. (CVE-2016-4660)
    
      - An unspecified flaw exists in the Sandbox Profiles
        component that allows a local attacker, via a specially
        crafted application, to disclose the metadata of photo
        directories. (CVE-2016-4664)
    
      - An unspecified flaw exists in the Sandbox Profiles
        component that allows a local attacker, via a specially
        crafted application, to disclose the metadata of audio
        recordings. (CVE-2016-4665)
    
      - Multiple memory corruption issues exist in Webkit due
        to improper validation of user-supplied input. An
        unauthenticated, remote attacker can exploit these to
        execute arbitrary code. (CVE-2016-4666, CVE-2016-4677,
        CVE-2016-7578)
    
      - Multiple unspecified flaws exist in the System Boot
        component, within MIG generated code, due to improper
        validation of input. A local attacker can exploit these
        to terminate the system or execute arbitrary code with
        elevated privileges. (CVE-2016-4669)
    
      - A memory corruption issue exists in the CoreGraphics
        component when handling specially crafted JPEG files. An
        unauthenticated, remote attacker can exploit this, via a
        specially crafted file, to cause a denial of service
        condition or the execution of arbitrary code.
        (CVE-2016-4673)
    
      - An unspecified logic issue exists in libxpc that allows
        a local attacker to execute arbitrary code with root
        privileges. (CVE-2016-4675)
    
      - A flaw exists in libarchive due to improper path
        validation when creating temporary files during archive
        extraction. An unauthenticated, remote attacker can
        exploit this, via a symlink attack, to overwrite
        arbitrary files. (CVE-2016-4679)
    
      - An unspecified flaw exists in the Kernel component due
        to improper sanitization of input. A local attacker can
        exploit this to disclose kernel memory contents.
        (CVE-2016-4680)
    
      - An overflow condition exists in the FontParser component
        due to improper validation when parsing font files. An
        unauthenticated, remote attacker can exploit this to
        cause a buffer overflow, resulting in a denial of
        service condition or the execution of arbitrary code.
        (CVE-2016-4688)
    
      - A flaw exists in the CFNetwork Proxies component when
        handling proxy credentials that allows a
        man-in-the-middle attacker to disclose sensitive user
        information. (CVE-2016-7579)
    
      - A flaw exists in the AppleMobileFileIntegrity component
        due to improper validation of code signatures. A local
        attacker can exploit this to have a signed executable
        substitute code with the same team ID. (CVE-2016-7584)
    
      - Multiple race conditions exist in various IOKit drivers
        related to how they use task struct pointers. A local
        attacker can exploit this to execute arbitrary code with
        kernel-level privileges. (CVE-2016-7613)
    
    Note that only 4th generation models are affected by these
    vulnerabilities.");
      script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT207270");
      script_set_attribute(attribute:"solution", value:
    "Upgrade to Apple TV version 10.0.1 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-2016-7613");
    
      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:"2016/10/24");
      script_set_attribute(attribute:"patch_publication_date", value:"2016/10/24");
      script_set_attribute(attribute:"plugin_publication_date", value:"2016/10/27");
    
      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) 2016-2019 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 = "14U71";
    tvos_ver = '10.0.1';
    
    # 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 familyMacOS X Local Security Checks
    NASL idMACOSX_SAFARI10_0_1.NASL
    descriptionThe version of Apple Safari installed on the remote Mac OS X or macOS host is prior to 10.0.1. It is, therefore, affected by multiple vulnerabilities in WebKit : - An unspecified flaw exists in state management due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this, via specially crafted web content, to disclose sensitive user information. (CVE-2016-4613) - Multiple memory corruption issues exist due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit these, via specially crafted web content, to execute arbitrary code. (CVE-2016-4666, CVE-2016-4677, CVE-2016-7578)
    last seen2020-06-01
    modified2020-06-02
    plugin id95411
    published2016-11-30
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/95411
    titlemacOS : Apple Safari < 10.0.1 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(95411);
      script_version("1.7");
      script_cvs_date("Date: 2020/01/07");
    
      script_cve_id(
        "CVE-2016-4613",
        "CVE-2016-4666",
        "CVE-2016-4677",
        "CVE-2016-7578"
      );
      script_bugtraq_id(93851, 93853, 93949);
      script_xref(name:"APPLE-SA", value:"APPLE-SA-2016-10-24-3");
    
      script_name(english:"macOS : Apple Safari < 10.0.1 Multiple Vulnerabilities");
      script_summary(english:"Checks the Safari version.");
    
      script_set_attribute(attribute:"synopsis", value:
    "A web browser installed on the remote Mac OS X or macOS host is
    affected by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The version of Apple Safari installed on the remote Mac OS X or macOS
    host is prior to 10.0.1. It is, therefore, affected by multiple
    vulnerabilities in WebKit :
    
      - An unspecified flaw exists in state management due to
        improper validation of user-supplied input. An
        unauthenticated, remote attacker can exploit this, via
        specially crafted web content, to disclose sensitive
        user information. (CVE-2016-4613)
    
      - Multiple memory corruption issues exist due to improper
        validation of user-supplied input. An unauthenticated,
        remote attacker can exploit these, via specially crafted
        web content, to execute arbitrary code. (CVE-2016-4666,
        CVE-2016-4677, CVE-2016-7578)");
      script_set_attribute(attribute:"see_also", value:"https://support.apple.com/kb/HT207272");
      # http://lists.apple.com/archives/security-announce/2016/Oct/msg00002.html
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?fe4ceff9");
      script_set_attribute(attribute:"solution", value:
    "Upgrade to Apple Safari version 10.0.1 or later.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
      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-2016-7578");
    
      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:"2016/10/24");
      script_set_attribute(attribute:"patch_publication_date", value:"2016/10/24");
      script_set_attribute(attribute:"plugin_publication_date", value:"2016/11/30");
    
      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) 2016-2020 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("vcf.inc");
    include("vcf_extras_apple.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    vcf::apple::check_macos_restrictions(restrictions:['10.10', '10.11', '10.12']);
    
    app_info = vcf::apple::get_safari_info();
    constraints = [{"fixed_version" : "10.0.1"}];
    vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);
    

The Hacker News

idTHN:47B589F3A19C866A36C9EF59E8E5F76F
last seen2018-01-27
modified2016-10-25
published2016-10-24
reporterMohit Kumar
sourcehttps://thehackernews.com/2016/10/how-to-hack-iphone.html
titleWarning! Your iPhone Can Get Hacked Just by Opening a JPEG Image, PDF or Font File