CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
5.1%
The remote Debian 10 host has a package installed that is affected by a vulnerability as referenced in the dla-3690 advisory.
Note that Nessus has not tested for this issue but has instead relied only on the applicationโs self-reported version number.
#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-3690. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(187045);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/24");
script_cve_id("CVE-2023-23583");
script_name(english:"Debian DLA-3690-1 : intel-microcode - LTS security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
script_set_attribute(attribute:"description", value:
"The remote Debian 10 host has a package installed that is affected by a vulnerability as referenced in the dla-3690
advisory.
- Sequence of processor instructions leads to unexpected behavior for some Intel(R) Processors may allow an
authenticated user to potentially enable escalation of privilege and/or information disclosure and/or
denial of service via local access. (CVE-2023-23583)
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://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1055962");
# https://security-tracker.debian.org/tracker/source-package/intel-microcode
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?019586d4");
script_set_attribute(attribute:"see_also", value:"https://www.debian.org/lts/security/2023/dla-3690");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-23583");
script_set_attribute(attribute:"solution", value:
"Upgrade the intel-microcode packages.
For Debian 10 buster, this problem has been fixed in version 3.20231114.1~deb10u1.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/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:L/UI:N/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-2023-23583");
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:"2023/11/09");
script_set_attribute(attribute:"patch_publication_date", value:"2023/12/17");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/12/17");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:intel-microcode");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(10)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 10.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);
var pkgs = [
{'release': '10.0', 'prefix': 'intel-microcode', 'reference': '3.20231114.1~deb10u1'}
];
var flag = 0;
foreach package_array ( pkgs ) {
var _release = NULL;
var prefix = NULL;
var reference = NULL;
if (!empty_or_null(package_array['release'])) _release = package_array['release'];
if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (_release && prefix && reference) {
if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : deb_report_get()
);
exit(0);
}
else
{
var tested = deb_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'intel-microcode');
}