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nessusThis script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.NESSUS_TNS-2023-39.NASL
HistoryNov 20, 2023 - 12:00 a.m.

Tenable Nessus < 10.5.7 (TNS-2023-39)

2023-11-2000:00:00
This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
5
tenable nessus
vulnerability
arbitrary file write
remote attacker
denial of service
cve-2023-6062
administrator privileges

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

6.6 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.1%

According to its self-reported version, the Tenable Nessus application running on the remote host is prior to 10.5.7. It is, therefore, affected by a vulnerability as referenced in the TNS-2023-39 advisory.

  • An arbitrary file write vulnerability exists where an authenticated, remote attacker with administrator privileges on the Nessus application could alter Nessus Rules variables to overwrite arbitrary files on the remote host, which could lead to a denial of service condition. Tenable has released Nessus 10.5.7 to address these issues. The installation files can only be obtained via the Nessus Feed.
    (CVE-2023-6062)

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(186011);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/13");

  script_cve_id("CVE-2023-6062");
  script_xref(name:"IAVA", value:"2023-A-0651-S");

  script_name(english:"Tenable Nessus < 10.5.7 (TNS-2023-39)");

  script_set_attribute(attribute:"synopsis", value:
"An instance of Nessus installed on the remote system is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the Tenable Nessus application running on the remote host is prior to 10.5.7. It
is, therefore, affected by a vulnerability as referenced in the TNS-2023-39 advisory.

  - An arbitrary file write vulnerability exists where an authenticated, remote attacker with administrator
    privileges on the Nessus application could alter Nessus Rules variables to overwrite arbitrary files on
    the remote host, which could lead to a denial of service condition. Tenable has released Nessus
    10.5.7 to address these issues. The installation files can only be obtained via the Nessus Feed.
    (CVE-2023-6062)

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://www.tenable.com/security/TNS-2023-39");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Tenable Nessus 10.5.7 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:M/C:N/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:N/AC:L/PR:H/UI:N/S:U/C:N/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-2023-6062");

  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:"2023/11/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/11/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/20");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:tenable:nessus");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("nessus_detect.nasl", "nessus_installed_win.nbin", "nessus_installed_linux.nbin", "macos_nessus_installed.nbin");
  script_require_keys("installed_sw/Tenable Nessus");

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

var app_info = vcf::combined_get_app_info(app:'Tenable Nessus');

vcf::check_granularity(app_info:app_info, sig_segments:3);

var constraints = [
  { 'max_version' : '10.5.6', 'fixed_display' : '10.5.7' }
];

vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_HOLE
);
VendorProductVersionCPE
tenablenessuscpe:/a:tenable:nessus

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

6.6 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.1%

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