6.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.6 Medium
AI Score
Confidence
Low
The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3852 advisory.
------------------------------------------------------------------------- Debian LTS Advisory DLA-3852-1 [email protected] https://www.debian.org/lts/security/ Markus Koschany June 30, 2024 https://wiki.debian.org/LTS
-------------------------------------------------------------------------
Package : edk2 Version : 0~20181115.85588389-3+deb10u4 CVE ID : CVE-2023-48733
Mate Kukri discovered the Debian build of EDK2, a UEFI firmware implementation, used an insecure default configuration which could result in Secure Boot bypass via the UEFI shell.
For Debian 10 buster, this problem has been fixed in version 0~20181115.85588389-3+deb10u4.
We recommend that you upgrade your edk2 packages.
For the detailed security status of edk2 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/edk2
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: This is a digitally signed message part
Tenable has extracted the preceding description block directly from the Debian security advisory.
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.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-3852. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(201169);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/07/01");
script_cve_id("CVE-2023-48733");
script_name(english:"Debian dla-3852 : ovmf - 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 packages installed that are affected by a vulnerability as referenced in the dla-3852
advisory.
-------------------------------------------------------------------------
Debian LTS Advisory DLA-3852-1 [email protected]
https://www.debian.org/lts/security/ Markus Koschany
June 30, 2024 https://wiki.debian.org/LTS
-------------------------------------------------------------------------
Package : edk2
Version : 0~20181115.85588389-3+deb10u4
CVE ID : CVE-2023-48733
Mate Kukri discovered the Debian build of EDK2, a UEFI firmware
implementation, used an insecure default configuration which could result
in Secure Boot bypass via the UEFI shell.
For Debian 10 buster, this problem has been fixed in version
0~20181115.85588389-3+deb10u4.
We recommend that you upgrade your edk2 packages.
For the detailed security status of edk2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/edk2
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
Attachment:
signature.asc
Description: This is a digitally signed message part
Tenable has extracted the preceding description block directly from the Debian security advisory.
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://security-tracker.debian.org/tracker/source-package/edk2");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-48733");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/edk2");
script_set_attribute(attribute:"solution", value:
"Upgrade the ovmf packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:H/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-2023-48733");
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:"2024/02/14");
script_set_attribute(attribute:"patch_publication_date", value:"2024/06/30");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/07/01");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ovmf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-efi");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-efi-aarch64");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-efi-arm");
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) 2024 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': 'ovmf', 'reference': '0~20181115.85588389-3+deb10u4'},
{'release': '10.0', 'prefix': 'qemu-efi', 'reference': '0~20181115.85588389-3+deb10u4'},
{'release': '10.0', 'prefix': 'qemu-efi-aarch64', 'reference': '0~20181115.85588389-3+deb10u4'},
{'release': '10.0', 'prefix': 'qemu-efi-arm', 'reference': '0~20181115.85588389-3+deb10u4'}
];
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_HOLE,
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, 'ovmf / qemu-efi / qemu-efi-aarch64 / qemu-efi-arm');
}
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | qemu-efi-aarch64 | p-cpe:/a:debian:debian_linux:qemu-efi-aarch64 |
debian | debian_linux | ovmf | p-cpe:/a:debian:debian_linux:ovmf |
debian | debian_linux | 10.0 | cpe:/o:debian:debian_linux:10.0 |
debian | debian_linux | qemu-efi | p-cpe:/a:debian:debian_linux:qemu-efi |
debian | debian_linux | qemu-efi-arm | p-cpe:/a:debian:debian_linux:qemu-efi-arm |