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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.MOBATEK_MOBAXTERM_CVE-2019-7690.NASL
HistoryMar 15, 2024 - 12:00 a.m.

Mobatek MobaXterm 11.1 u3860 (CVE-2019-7690)

2024-03-1500:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
3
mobatek
mobaxterm
vulnerability
ssh
private key
retrieval
cve-2019-7690
nessus
passwordless authentication

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.3 High

AI Score

Confidence

Low

0.007 Low

EPSS

Percentile

79.7%

The version of Mobatek MobaXterm installed on the remote host is 11.1. It is, therefore, affected by a vulnerability as referenced in the CVE-2019-7690 advisory.

  • In MobaTek MobaXterm Personal Edition v11.1 Build 3860, the SSH private key and its password can be retrieved from process memory for the lifetime of the process, even after the user disconnects from the remote SSH server. This affects Passwordless Authentication that has a Password Protected SSH Private Key.
    (CVE-2019-7690)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(192159);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/15");

  script_cve_id("CVE-2019-7690");

  script_name(english:"Mobatek MobaXterm 11.1 u3860 (CVE-2019-7690)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of Mobatek MobaXterm installed on the remote host is 11.1. It is, therefore, affected by a
vulnerability as referenced in the CVE-2019-7690 advisory.

  - In MobaTek MobaXterm Personal Edition v11.1 Build 3860, the SSH private key and its password can be
    retrieved from process memory for the lifetime of the process, even after the user disconnects from the
    remote SSH server. This affects Passwordless Authentication that has a Password Protected SSH Private Key.
    (CVE-2019-7690)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://www.cvedetails.com/vulnerability-list/vendor_id-15701/product_id-32575/Mobatek-Mobaxterm.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f7905d11");
  script_set_attribute(attribute:"see_also", value:"https://www.cvedetails.com/cve/CVE-2019-7690");
  script_set_attribute(attribute:"solution", value:
"Upgrade Mobatek MobaXterm based upon the guidance specified in the linked advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  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:N/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-2019-7690");

  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:"2019/05/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/05/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/03/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mobatek:mobaxterm");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("mobatek_mobaxterm_win_installed.nbin");
  script_require_keys("installed_sw/Mobatek MobaXterm");

  exit(0);
}

include('vcf.inc');
get_kb_item_or_exit('SMB/Registry/Enumerated');

var app_info = vcf::get_app_info(app:'Mobatek MobaXterm', win_local:TRUE);

var constraints = [
  { 'equal' : '11.1.3860', 'fixed_display' : 'See vendor advisory' }
];

vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_WARNING
);
VendorProductVersionCPE
mobatekmobaxtermcpe:/a:mobatek:mobaxterm

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.3 High

AI Score

Confidence

Low

0.007 Low

EPSS

Percentile

79.7%

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