Vulnerabilities > CVE-2020-3881 - Information Exposure vulnerability in Apple mac OS X

047910
CVSS 2.1 - LOW
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
NONE
Availability impact
NONE
local
low complexity
apple
CWE-200
nessus

Summary

A logic issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15.4. A local user may be able to view sensitive user information.

Vulnerable Configurations

Part Description Count
OS
Apple
162

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Nessus

NASL familyMacOS X Local Security Checks
NASL idMACOS_HT211100.NASL
descriptionThe remote host is running a version of macOS / Mac OS X that is 10.13.x prior to 10.13.6 Security Update 2020-002, 10.14.x prior to 10.14.6 Security Update 2020-002, or 10.15.x prior to 10.15.4. It is, therefore, affected by multiple vulnerabilities : - Insufficient control flow in certain data structures for some Intel(R) Processors with Intel(R) Processor Graphics may allow an unauthenticated user to potentially enable information disclosure via local access. (CVE-2019-14615) - ** DISPUTED ** In Sudo through 1.8.29, an attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user by invoking sudo with a numeric uid that is not associated with any user. NOTE: The software maintainer believes that this is not a vulnerability because running a command via sudo as a user not present in the local password database is an intentional feature. Because this behavior surprised some users, sudo 1.8.30 introduced an option to enable/disable this behavior with the default being disabled. However, this does not change the fact that sudo was behaving as intended, and as documented, in earlier versions. (CVE-2019-19232) - An out-of-bounds read error exists in Bluetooth due to improper input sanitization. An attacker can exploit this to read restricted memory. (CVE-2019-8853) - Privilege escalation vulnerabilities exist in IOThunderboltFamily (due to a use-after-free flaw), and in CUPS (due to a memory corruption issue). An attacker can exploit this to gain elevated access to the system. (CVE-2020-3851, CVE-2020-3898) - An information disclosure vulnerability exists in FaceTime, Icons, and Call History. An unauthenticated, local attacker can exploit this, via malicious applications, to disclose potentially sensitive information. (CVE-2020-3881, CVE-2020-9773, CVE-2020-9776) - An information disclosure vulnerability exists in Sandbox. A local user can exploit this to view sensitvie user information. (CVE-2020-3918) - An unspecified issue exists in AppleMobileFileIntegrity due to an unspecified reason. An attacker can exploit this to use arbitrary entitlements. (CVE-2020-3883) - An arbitrary code execution vulnerability exists in Mail due to improper input validation. An unauthenticated, remote attacker can exploit this to bypass authentication and execute arbitrary JavaScript code. (CVE-2020-3884) - An arbitrary file read vulnerability exists in Time Machine due to improper state management. An unauthenticated, local attacker can exploit this to read arbitrary files and disclose sensitive information. (CVE-2020-3889) - An arbitrary code execution vulnerability exists in AppleGraphicsControl, Bluetooth, IOHIDFamily, and the kernel due to memory initialization and corruption issues. An attacker can exploit this to bypass authentication and execute arbitrary commands with kernel privileges. (CVE-2020-3892, CVE-2020-3893, CVE-2020-3904, CVE-2020-3905, CVE-2020-3919, CVE-2020-9785) - An arbitrary code execution vulnerability exists in Apple HSSPI Support due to a memory corruption issue. An attacker can exploit this to bypass authentication and execute arbitrary commands with system privileges. (CVE-2020-3903) - A logic issue exists in TCC due to an unspecified reason. An attacker can exploit this, via a maliciously crafted application, to cause bypass code signing. (CVE-2020-3906) - An out-of-bounds read error exists in Bluetooth due to improper input validation. An unauthenticated local attacker can exploit this to cause a denial of service or read kernel memory. (CVE-2020-3907, CVE-2020-3908, CVE-2020-3912) - A buffer overflow condition exists in libxml2 due to improper bounds checking and size validation. An attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2020-3909, CVE-2020-3910, CVE-2020-3911) - A privilege escalation vulnerability exists in due to improper permission validation. An unauthenticated, remote attacker can exploit this, to gain elevated access to the system. (CVE-2020-3913) - An information disclosure vulnerability exists in the kernel due to improper memory handling. An attacker can exploit this to read restricted memory. (CVE-2020-3914) - An arbitrary file overwrite vulnerability exists in Printing due improper path handlng. An attacker can exploit this to overwrite arbitrary files. (CVE-2020-3915) - Multiple unspecified issues exist in the Vim installation on macOS. An attacker can exploit this to cause an unknown impact. (CVE-2020-9769) - An unspecified vulnerability exists in sysdiagnose due to insufficient validation of user supplied input. An attacker could exploit this issue with partial impact on the confidentiality, integrity & availability of the application and/or system. (CVE-2020-9786) - An vulnerability exists in WebKit due to a logic flaw in restrictions. An attacker may exploit this flaw, as part of a more elaborate attack, to gain unauthorized access to the MacOS camera. (CVE-2020-9787) Note that Nessus has not tested for this issue but has instead relied only on the operating system
last seen2020-05-31
modified2020-03-27
plugin id134954
published2020-03-27
reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/134954
titlemacOS 10.15.x < 10.15.4 / 10.14.x < 10.14.6 Security Update 2020-002 / 10.13.x < 10.13.6 Security Update 2020-002
code
#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(134954);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/29");

  script_cve_id(
    "CVE-2019-8853",
    "CVE-2019-14615",
    "CVE-2019-19232",
    "CVE-2020-3851",
    "CVE-2020-3881",
    "CVE-2020-3883",
    "CVE-2020-3884",
    "CVE-2020-3889",
    "CVE-2020-3892",
    "CVE-2020-3893",
    "CVE-2020-3898",
    "CVE-2020-3903",
    "CVE-2020-3904",
    "CVE-2020-3905",
    "CVE-2020-3906",
    "CVE-2020-3907",
    "CVE-2020-3908",
    "CVE-2020-3909",
    "CVE-2020-3910",
    "CVE-2020-3911",
    "CVE-2020-3912",
    "CVE-2020-3913",
    "CVE-2020-3914",
    "CVE-2020-3915",
    "CVE-2020-3918",
    "CVE-2020-3919",
    "CVE-2020-9769",
    "CVE-2020-9773",
    "CVE-2020-9776",
    "CVE-2020-9785",
    "CVE-2020-9786",
    "CVE-2020-9787"
  );
  script_xref(name:"APPLE-SA", value:"HT211100");
  script_xref(name:"APPLE-SA", value:"APPLE-SA-2020-03-20");
  script_xref(name:"IAVA", value:"2020-A-0120-S");

  script_name(english:"macOS 10.15.x < 10.15.4 / 10.14.x < 10.14.6 Security Update 2020-002 / 10.13.x < 10.13.6 Security Update 2020-002");

  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 10.13.x prior to 10.13.6 Security Update 2020-002,
10.14.x prior to 10.14.6 Security Update 2020-002, or 10.15.x prior to 10.15.4. It is, therefore, affected by multiple
vulnerabilities :

  - Insufficient control flow in certain data structures for some Intel(R) Processors with Intel(R) Processor
    Graphics may allow an unauthenticated user to potentially enable information disclosure via local access.
    (CVE-2019-14615)

  - ** DISPUTED ** In Sudo through 1.8.29, an attacker with access to a Runas ALL sudoer account can
    impersonate a nonexistent user by invoking sudo with a numeric uid that is not associated with any user.
    NOTE: The software maintainer believes that this is not a vulnerability because running a command via sudo
    as a user not present in the local password database is an intentional feature. Because this behavior
    surprised some users, sudo 1.8.30 introduced an option to enable/disable this behavior with the default
    being disabled. However, this does not change the fact that sudo was behaving as intended, and as
    documented, in earlier versions. (CVE-2019-19232)

  - An out-of-bounds read error exists in Bluetooth due to improper input sanitization. An attacker can
    exploit this to read restricted memory. (CVE-2019-8853)

  - Privilege escalation vulnerabilities exist in IOThunderboltFamily (due to a use-after-free flaw), and in
    CUPS (due to a memory corruption issue). An attacker can exploit this to gain elevated access to the 
    system. (CVE-2020-3851, CVE-2020-3898)

  - An information disclosure vulnerability exists in FaceTime, Icons, and Call History. An unauthenticated,
    local attacker can exploit this, via malicious applications, to disclose potentially sensitive
    information. (CVE-2020-3881, CVE-2020-9773, CVE-2020-9776)

  - An information disclosure vulnerability exists in Sandbox. A local user can exploit this to view
    sensitvie user information. (CVE-2020-3918)

  - An unspecified issue exists in AppleMobileFileIntegrity due to an unspecified reason. An attacker can
    exploit this to use arbitrary entitlements. (CVE-2020-3883)

  - An arbitrary code execution vulnerability exists in Mail due to improper input validation. An
    unauthenticated, remote attacker can exploit this to bypass authentication and execute arbitrary
    JavaScript code. (CVE-2020-3884)

  - An arbitrary file read vulnerability exists in Time Machine due to improper state management. An
    unauthenticated, local attacker can exploit this to read arbitrary files and disclose sensitive
    information. (CVE-2020-3889)

  - An arbitrary code execution vulnerability exists in AppleGraphicsControl, Bluetooth, IOHIDFamily, and the
    kernel due to memory initialization and corruption issues. An attacker can exploit this to bypass
    authentication and execute arbitrary commands with kernel privileges. (CVE-2020-3892, CVE-2020-3893,
    CVE-2020-3904, CVE-2020-3905, CVE-2020-3919, CVE-2020-9785)

  - An arbitrary code execution vulnerability exists in Apple HSSPI Support due to a memory corruption issue.
    An attacker can exploit this to bypass authentication and execute arbitrary commands with system
    privileges. (CVE-2020-3903)

  - A logic issue exists in TCC due to an unspecified reason. An attacker can exploit this, via a maliciously
    crafted application, to cause bypass code signing. (CVE-2020-3906)

  - An out-of-bounds read error exists in Bluetooth due to improper input validation. An unauthenticated local
    attacker can exploit this to cause a denial of service or read kernel memory. (CVE-2020-3907,
    CVE-2020-3908, CVE-2020-3912)

  - A buffer overflow condition exists in libxml2 due to improper bounds checking and size validation. An
    attacker can exploit this to cause a denial of service condition or the execution of arbitrary code.
    (CVE-2020-3909, CVE-2020-3910, CVE-2020-3911)

  - A privilege escalation vulnerability exists in due to improper permission validation. An unauthenticated,
    remote attacker can exploit this, to gain elevated access to the system. (CVE-2020-3913)

  - An information disclosure vulnerability exists in the kernel due to improper memory handling. An attacker
    can exploit this to read restricted memory. (CVE-2020-3914)

  - An arbitrary file overwrite vulnerability exists in Printing due improper path handlng. An attacker can 
    exploit this to overwrite arbitrary files. (CVE-2020-3915)

  - Multiple unspecified issues exist in the Vim installation on macOS. An attacker can exploit this to cause
    an unknown impact. (CVE-2020-9769)

  - An unspecified vulnerability exists in sysdiagnose due to insufficient validation of user supplied input. 
    An attacker could exploit this issue with partial impact on the confidentiality, integrity & availability
    of the application and/or system. (CVE-2020-9786)

  - An vulnerability exists in WebKit due to a logic flaw in restrictions. An attacker may exploit this flaw,
    as part of a more elaborate attack, to gain unauthorized access to the MacOS camera. (CVE-2020-9787)

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/HT211100");
  script_set_attribute(attribute:"solution", value:
"Upgrade to macOS 10.15.4 / 10.14.x < 10.14.6 Security Update 2020-002 / 10.13.x < 10.13.6 Security Update 2020-002 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:L/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-2020-9785");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/12/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/03/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/03/27");

  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_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"MacOS X Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 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('vcf.inc');
include('lists.inc');
include('vcf_extras_apple.inc');

app_info = vcf::apple::macos::get_app_info();

constraints = [
  { 'max_version' : '10.13.6', 'min_version' : '10.13', 'fixed_build' : '17G12034', 'fixed_display' : '10.13.6 Security Update 2020-002' },
  { 'max_version' : '10.14.6', 'min_version' : '10.14', 'fixed_build' : '18G4032', 'fixed_display' : '10.14.6 Security Update 2020-002' },
  { 'max_version' : '10.15.3', 'min_version' : '10.15', 'fixed_version' : '10.15.4', 'fixed_display' : 'macOS Catalina 10.15.4' }
];

vcf::apple::macos::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);