Vulnerabilities > CVE-2017-8360 - Information Exposure vulnerability in Conexant Mictray64 1.0.0.46

047910
CVSS 5.5 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
HIGH
Integrity impact
NONE
Availability impact
NONE
local
low complexity
conexant
CWE-200
nessus

Summary

Conexant Systems mictray64 task, as used on HP Elite, EliteBook, ProBook, and ZBook systems, leaks sensitive data (keystrokes) to any process. In mictray64.exe (mic tray icon) 1.0.0.46, a LowLevelKeyboardProc Windows hook is used to capture keystrokes. This data is leaked via unintended channels: debug messages accessible to any process that is running in the current user session, and filesystem access to C:\Users\Public\MicTray.log by any process.

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 familyWindows
NASL idCONEXANT_MICTRAY_KEYLOGGER.NASL
descriptionThe Conexant audio driver package installed on the remote Windows host is affected by an information disclosure vulnerability in the debugging features of MicTray.exe or MicTray64.exe due to a LowLevelKeyboardProc Windows hook that is being used to capture keystrokes. This data is then leaked via debug messages that are accessible to any process that is running in the current user session or to a publicly readable log file. A local attacker can exploit this vulnerability, via a specially crafted application, to access the keylogging data and thereby disclose potentially sensitive information.
last seen2020-06-01
modified2020-06-02
plugin id100161
published2017-05-12
reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/100161
titleConexant Audio Driver MicTray.exe / MicTray64.exe Keylogger
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(100161);
  script_version("1.3");
  script_cvs_date("Date: 2019/11/13");

  script_cve_id("CVE-2017-8360");

  script_name(english:"Conexant Audio Driver MicTray.exe / MicTray64.exe Keylogger");
  script_summary(english:"Checks the file versions.");

  script_set_attribute(attribute:"synopsis", value:
"An audio driver installed on the remote Windows host can act as a
keylogger.");
  script_set_attribute(attribute:"description", value:
"The Conexant audio driver package installed on the remote Windows
host is affected by an information disclosure vulnerability in the
debugging features of MicTray.exe or MicTray64.exe due to a
LowLevelKeyboardProc Windows hook that is being used to capture
keystrokes. This data is then leaked via debug messages that are
accessible to any process that is running in the current user session
or to a publicly readable log file. A local attacker can exploit this
vulnerability, via a specially crafted application, to access the
keylogging data and thereby disclose potentially sensitive
information.");
  # https://www.modzero.ch/modlog/archives/2017/05/11/en_keylogger_in_hewlett-packard_audio_driver/index.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a4145f6a");
  script_set_attribute(attribute:"see_also", value:"https://www.modzero.ch/advisories/MZ-17-01-Conexant-Keylogger.txt");
  script_set_attribute(attribute:"see_also", value:"https://support.hp.com/us-en/drivers");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate vendor-supplied patch.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N");
  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:L/UI:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-8360");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/05/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/05/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/a:conexant_systems:mictray");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("smb_hotfixes.nasl");
  script_require_keys("SMB/Registry/Enumerated");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("misc_func.inc");
include("install_func.inc");

# Temporarily disabled
exit(0, "Temporarily disabled.");

get_kb_item_or_exit("SMB/Registry/Enumerated", exit_code:1);

if (hotfix_check_fversion_init() != HCF_OK)
  audit(AUDIT_FN_FAIL, 'hotfix_check_fversion_init');

systemroot = hotfix_get_systemroot();
if (isnull(systemroot)) exit(1, "Failed to determine the location of %windir%.");

path = hotfix_append_path(path:systemroot, value:"system32\");

if (
 hotfix_check_fversion(
         file:"MicTray.exe",
         path:path,
         version:"1.4.0.1",
         min_version:"0"
  ) == HCF_OLDER
  ||
  hotfix_check_fversion(
         file:"MicTray64.exe",
         path:path,
         version:"1.4.0.1",
         min_version:"0"
  ) == HCF_OLDER
)
{
  hotfix_security_note();
  hotfix_check_fversion_end();
  exit(0);
}
else
{
  hotfix_check_fversion_end();
  audit(AUDIT_HOST_NOT, 'affected');
}

The Hacker News

idTHN:BB348A9A3B1447F49FC4DBBCA9525DEC
last seen2018-01-27
modified2017-05-11
published2017-05-11
reporterSwati Khandelwal
sourcehttps://thehackernews.com/2017/05/hp-audio-driver-laptop-keylogger.html
titleBeware! Built-in Keylogger Discovered In Several HP Laptop Models