Vulnerabilities > CVE-2019-8748 - Out-of-bounds Write vulnerability in Apple mac OS X

047910
CVSS 7.8 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
local
low complexity
apple
CWE-787
nessus

Summary

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15. An application may be able to execute arbitrary code with kernel privileges.

Vulnerable Configurations

Part Description Count
OS
Apple
183

Common Weakness Enumeration (CWE)

Nessus

  • NASL familyMacOS X Local Security Checks
    NASL idMACOS_HT210634.NASL
    descriptionThe remote host is running a version of macOS / Mac OS X that is prior to 10.15. It is, therefore, affected by multiple vulnerabilities. - An application may be able to execute arbitrary code with kernel privileges (CVE-2019-8748) - Multiple issues in PHP (CVE-2019-11041, CVE-2019-11042) - Processing a maliciously crafted movie may result in the disclosure of process memory (CVE-2019-8705) - The
    last seen2020-06-01
    modified2020-06-02
    plugin id130057
    published2019-10-18
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/130057
    titlemacOS < 10.15 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include('compat.inc');
    
    if (description)
    {
      script_id(130057);
      script_version("1.7");
      script_cvs_date("Date: 2020/01/07");
    
      script_cve_id(
        "CVE-2019-8701",
        "CVE-2019-8705",
        "CVE-2019-8717",
        "CVE-2019-8730",
        "CVE-2019-8745",
        "CVE-2019-8748",
        "CVE-2019-8755",
        "CVE-2019-8757",
        "CVE-2019-8758",
        "CVE-2019-8768",
        "CVE-2019-8769",
        "CVE-2019-8770",
        "CVE-2019-8772",
        "CVE-2019-8781",
        "CVE-2019-11041",
        "CVE-2019-11042"
      );
      script_xref(name:"APPLE-SA", value:"HT210634");
    
      script_name(english:"macOS < 10.15 Multiple Vulnerabilities");
      script_summary(english:"Checks the version of macOS.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote host is missing a macOS update that fixes multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The remote host is running a version of macOS / Mac OS X that is prior
    to 10.15. It is, therefore, affected by multiple vulnerabilities. 
    
      - An application may be able to execute arbitrary code with kernel privileges (CVE-2019-8748)
    
      - Multiple issues in PHP (CVE-2019-11041, CVE-2019-11042)
    
      - Processing a maliciously crafted movie may result in the disclosure of process memory (CVE-2019-8705)
    
      - The 'Share Mac Analytics' setting may not be disabled when a user deselects the switch to share analytics (CVE-2019-8757)
    
      - An application may be able to execute arbitrary code with system privileges (CVE-2019-8758)
    
      - A malicious application may be able to determine kernel memory layout (CVE-2019-8755)
    
      - An application may be able to execute arbitrary code with kernel privileges (CVE-2019-8717)
    
      - An application may be able to execute arbitrary code with kernel privileges (CVE-2019-8781)
    
      - A local user may be able to view a user's locked notes (CVE-2019-8730)
    
      - An attacker may be able to exfiltrate the contents of an encrypted PDF (CVE-2019-8772)
    
      - A malicious application may be able to access recent documents (CVE-2019-8770)
    
      - An application may be able to execute arbitrary code with system privileges (CVE-2019-8701)
    
      - Processing a maliciously crafted text file may lead to arbitrary code execution (CVE-2019-8745)
    
      - Visiting a maliciously crafted website may reveal browsing history (CVE-2019-8769)
    
      - A user may be unable to delete browsing history items (CVE-2019-8768)
    
    Note that Nessus has not tested for this issue but has instead relied only on
    the operating system's self-reported version number.");
      script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT210634");
      script_set_attribute(attribute:"solution", value:
    "Upgrade to macOS 10.15 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-2019-8781");
    
      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:"2019/10/07");
      script_set_attribute(attribute:"patch_publication_date", value:"2019/10/07");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/18");
    
      script_set_attribute(attribute:"potential_vulnerability", value:"true");
      script_set_attribute(attribute:"plugin_type", value:"combined");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:macos");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"MacOS X Local Security Checks");
    
      script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("ssh_get_info.nasl", "os_fingerprint.nasl");
      script_require_keys("Settings/ParanoidReport");
      script_require_ports("Host/MacOSX/Version", "Host/OS");
    
      exit(0);
    }
    
    include('lists.inc');
    include('vcf.inc');
    include('vcf_extras_apple.inc');
    
    app_info = vcf::apple::macos::get_app_info();
    
    if (report_paranoia < 2) audit(AUDIT_PARANOID);
    
    # Build numbers from:
    # https://en.wikipedia.org/wiki/MacOS#Release_history ->
    #  https://en.wikipedia.org/wiki/MacOS_Sierra
    #  https://en.wikipedia.org/wiki/MacOS_High_Sierra
    #  https://en.wikipedia.org/wiki/MacOS_Mojave
    #  https://en.wikipedia.org/wiki/MacOS_Catalina
    constraints = [
      { 'min_version': '10.12', 'max_version': '10.15.0', 'fixed_build': '19A583', 'fixed_display': '10.15 Build 19A583' }
    ];
    
    vcf::apple::macos::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);
    
    
  • NASL familyMacOS X Local Security Checks
    NASL idMACOS_HT210722.NASL
    descriptionThe remote host is running a version of macOS or Mac OS X that is 10.15.x prior to 10.15.1, 10.14.x prior to 10.14.6 security update 2019-001, 10.13.x prior to 10.13.6 security update 2019-006. It is, therefore, affected by multiple vulnerabilities : - An out-of-bounds read error exists in the accounts component due to improper input validation. A remote attacker can exploit this, to disclose memory contents. (CVE-2019-8787) - A security bypass vulnerability exists in the App Store component due to an improper state management implementation. A local attacker can exploit this, to login to the account of a previously logged in user without valid credentials. (CVE-2019-8803) - An out-of-bounds read error exists in the IOGraphics component due to improper bounds checking. A local attacker can exploit this, to cause unexpected system termination or to read kernel memory. (CVE-2019-8759) Note that Nessus has not tested for this issue but has instead relied only on the operating system
    last seen2020-03-18
    modified2019-11-13
    plugin id130967
    published2019-11-13
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/130967
    titlemacOS 10.15.x < 10.15.1 / 10.14.x < 10.14.6 Security Update 2019-001 / 10.13.x < 10.13.6 Security Update 2019-006
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include('compat.inc');
    
    if (description)
    {
      script_id(130967);
      script_version("1.7");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/10");
    
      script_cve_id(
        "CVE-2017-7152",
        "CVE-2018-12152",
        "CVE-2018-12153",
        "CVE-2018-12154",
        "CVE-2019-8509",
        "CVE-2019-8592",
        "CVE-2019-8705",
        "CVE-2019-8706",
        "CVE-2019-8708",
        "CVE-2019-8709",
        "CVE-2019-8715",
        "CVE-2019-8716",
        "CVE-2019-8717",
        "CVE-2019-8736",
        "CVE-2019-8737",
        "CVE-2019-8744",
        "CVE-2019-8745",
        "CVE-2019-8746",
        "CVE-2019-8748",
        "CVE-2019-8749",
        "CVE-2019-8750",
        "CVE-2019-8754",
        "CVE-2019-8756",
        "CVE-2019-8759",
        "CVE-2019-8761",
        "CVE-2019-8767",
        "CVE-2019-8772",
        "CVE-2019-8784",
        "CVE-2019-8785",
        "CVE-2019-8786",
        "CVE-2019-8787",
        "CVE-2019-8788",
        "CVE-2019-8789",
        "CVE-2019-8794",
        "CVE-2019-8797",
        "CVE-2019-8798",
        "CVE-2019-8801",
        "CVE-2019-8802",
        "CVE-2019-8803",
        "CVE-2019-8805",
        "CVE-2019-8807",
        "CVE-2019-8817",
        "CVE-2019-8824",
        "CVE-2019-8825",
        "CVE-2019-8829",
        "CVE-2019-8831",
        "CVE-2019-8850",
        "CVE-2019-8858",
        "CVE-2019-11041",
        "CVE-2019-11042",
        "CVE-2019-15126"
      );
      script_bugtraq_id(103136, 105582);
      script_xref(name:"APPLE-SA", value:"HT210722");
      script_xref(name:"APPLE-SA", value:"APPLE-SA-2019-10-29");
    
      script_name(english:"macOS 10.15.x < 10.15.1 / 10.14.x < 10.14.6 Security Update 2019-001 / 10.13.x < 10.13.6 Security Update 2019-006");
      script_summary(english:"Checks the version of macOS or Mac OS X.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote host is missing a macOS or Mac OS X security update that fixes multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The remote host is running a version of macOS or Mac OS X that is 10.15.x prior to 10.15.1, 10.14.x prior to 10.14.6 
    security update 2019-001, 10.13.x prior to 10.13.6 security update 2019-006. It is, therefore, affected by multiple 
    vulnerabilities :
    
      - An out-of-bounds read error exists in the accounts component due to improper input validation. A remote
        attacker can exploit this, to disclose memory contents. (CVE-2019-8787)
    
      - A security bypass vulnerability exists in the App Store component due to an improper state management
        implementation. A local attacker can exploit this, to login to the account of a previously logged in user
        without valid credentials. (CVE-2019-8803)
    
      - An out-of-bounds read error exists in the IOGraphics component due to improper bounds checking. A local
        attacker can exploit this, to cause unexpected system termination or to read kernel memory. 
        (CVE-2019-8759)
    
    Note that Nessus has not tested for this issue but has instead relied only on the operating system's self-reported
    version number.");
      # https://support.apple.com/en-us/HT210722
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?39d6c45e");
      script_set_attribute(attribute:"solution", value:
    "Upgrade to macOS 10.15.1 / 10.14.6 security update 2019-001 / 10.13.6 security update 2019-006 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-2019-8807");
    
      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:"2019/10/29");
      script_set_attribute(attribute:"patch_publication_date", value:"2019/10/29");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/13");
    
      script_set_attribute(attribute:"plugin_type", value:"combined");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:macos");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"MacOS X Local Security Checks");
    
      script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("ssh_get_info.nasl", "os_fingerprint.nasl");
      script_require_ports("Host/MacOSX/Version", "Host/OS");
    
      exit(0);
    }
    
    include('lists.inc');
    include('vcf.inc');
    include('vcf_extras_apple.inc');
    
    app_info = vcf::apple::macos::get_app_info();
    
    constraints = [
      { 'min_version': '10.13', 'max_version': '10.13.6', 'fixed_build': '17G9016', 'fixed_display': '10.13.6 Security Update 2019-006' },
      { 'min_version': '10.14', 'max_version': '10.14.6', 'fixed_build': '18G1012', 'fixed_display': '10.14.6 Security Update 2019-001' },
      { 'min_version': '10.15', 'fixed_version': '10.15.1' }
    ];
    
    vcf::apple::macos::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);
    
  • NASL familyJunos Local Security Checks
    NASL idJUNIPER_JSA10962.NASL
    descriptionThe version of Junos OS installed on the remote host is prior to 15.1R7-S5, 16.1R7-S5, 16.2R2-S10, 17.1R3-S1, 17.2R3-S2, 17.3R3-S6, 17.4R2-S5, 18.1R3-S6, 18.2R2-S4, 18.2X75-D50, 18.3R1-S5, 18.4R2, or 19.1R1-S2. It is, therefore, affected by a vulnerability as referenced in the JSA10962 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-06-01
    modified2020-06-02
    plugin id130053
    published2019-10-18
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/130053
    titleJuniper JSA10962
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(130053);
      script_version("1.1");
      script_cvs_date("Date: 2019/10/18 11:42:09");
    
      script_cve_id("CVE-2019-0063");
      script_xref(name:"JSA", value:"JSA10962");
      script_xref(name:"IAVA", value:"2019-A-0388");
    
      script_name(english:"Juniper JSA10962");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote device is missing a vendor-supplied security patch.");
      script_set_attribute(attribute:"description", value:
    "The version of Junos OS installed on the remote host is prior to 15.1R7-S5, 16.1R7-S5, 16.2R2-S10, 17.1R3-S1, 17.2R3-S2,
    17.3R3-S6, 17.4R2-S5, 18.1R3-S6, 18.2R2-S4, 18.2X75-D50, 18.3R1-S5, 18.4R2, or 19.1R1-S2. It is, therefore, affected by
    a vulnerability as referenced in the JSA10962 advisory. Note that Nessus has not tested for this issue but has instead
    relied only on the application's self-reported version number.");
      script_set_attribute(attribute:"see_also", value:"https://kb.juniper.net/JSA10962");
      script_set_attribute(attribute:"solution", value:
    "Apply the relevant Junos software release referenced in Juniper advisory JSA10962");
      script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-8748");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2019/10/09");
      script_set_attribute(attribute:"patch_publication_date", value:"2019/10/09");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/18");
    
      script_set_attribute(attribute:"plugin_type", value:"combined");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:juniper:junos");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Junos Local Security Checks");
    
      script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("junos_version.nasl");
      script_require_keys("Host/Juniper/JUNOS/Version", "Host/Juniper/model");
    
      exit(0);
    }
    
    include("audit.inc");
    include("junos.inc");
    include("misc_func.inc");
    
    ver = get_kb_item_or_exit('Host/Juniper/JUNOS/Version');
    model = get_kb_item_or_exit('Host/Juniper/model');
    fixes = make_array();
    
    if (model =~ "^MX")
    {
      fixes["15.1"] = "15.1R7-S5";
      fixes["16.1"] = "16.1R7-S5";
      fixes["16.2"] = "16.2R2-S10";
      fixes["17.1"] = "17.1R3-S1";
      fixes["17.2"] = "17.2R3-S2";
      fixes["17.3"] = "17.3R3-S6";
      fixes["17.4"] = "17.4R2-S5";
      fixes["18.1"] = "18.1R3-S6";
      fixes["18.2"] = "18.2R2-S4";
      fixes["18.2X75"] = "18.2X75-D50";
      fixes["18.3"] = "18.3R1-S5";
      fixes["18.4"] = "18.4R2";
      fixes["19.1"] = "19.1R1-S2";
    }
    fix = check_junos(ver:ver, fixes:fixes, exit_on_fail:TRUE);
    report = get_report(ver:ver, fix:fix);
    security_report_v4(severity:SECURITY_WARNING, port:0, extra:report);