The remote Ubuntu 18.04 LTS / 20.04 LTS / 21.10 / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5461-1 advisory.
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). In versions prior to 2.7.0, NT LAN Manager (NTLM) authentication does not properly abort when someone provides and empty password value. This issue affects FreeRDP based RDP Server implementations. RDP clients are not affected. The vulnerability is patched in FreeRDP 2.7.0. There are currently no known workarounds. (CVE-2022-24882)
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 2.7.0, server side authentication against a SAM
file might be successful for invalid credentials if the server has configured an invalid SAM
file path. FreeRDP based clients are not affected. RDP server implementations using FreeRDP to authenticate against a SAM
file are affected. Version 2.7.0 contains a fix for this issue. As a workaround, use custom authentication via HashCallback
and/or ensure the SAM
database path configured is valid and the application has file handles left. (CVE-2022-24883)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-5461-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##
include('compat.inc');
if (description)
{
script_id(161908);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/16");
script_cve_id("CVE-2022-24882", "CVE-2022-24883");
script_xref(name:"USN", value:"5461-1");
script_name(english:"Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : FreeRDP vulnerabilities (USN-5461-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Ubuntu 18.04 LTS / 20.04 LTS / 21.10 / 22.04 LTS host has packages installed that are affected by multiple
vulnerabilities as referenced in the USN-5461-1 advisory.
- FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). In versions prior to 2.7.0, NT LAN
Manager (NTLM) authentication does not properly abort when someone provides and empty password value. This
issue affects FreeRDP based RDP Server implementations. RDP clients are not affected. The vulnerability is
patched in FreeRDP 2.7.0. There are currently no known workarounds. (CVE-2022-24882)
- FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 2.7.0, server side
authentication against a `SAM` file might be successful for invalid credentials if the server has
configured an invalid `SAM` file path. FreeRDP based clients are not affected. RDP server implementations
using FreeRDP to authenticate against a `SAM` file are affected. Version 2.7.0 contains a fix for this
issue. As a workaround, use custom authentication via `HashCallback` and/or ensure the `SAM` database path
configured is valid and the application has file handles left. (CVE-2022-24883)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-5461-1");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
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-2022-24883");
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:"2022/04/26");
script_set_attribute(attribute:"patch_publication_date", value:"2022/06/06");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/06/06");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:freerdp2-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:freerdp2-shadow-x11");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:freerdp2-wayland");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:freerdp2-x11");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libfreerdp-client2-2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libfreerdp-server2-2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libfreerdp-shadow-subsystem2-2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libfreerdp-shadow2-2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libfreerdp2-2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libuwac0-0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libuwac0-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libwinpr-tools2-2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libwinpr2-2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libwinpr2-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:winpr-utils");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Ubuntu Local Security Checks");
script_copyright(english:"Ubuntu Security Notice (C) 2022-2023 Canonical, Inc. / NASL script (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/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);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('18.04' >< os_release || '20.04' >< os_release || '22.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 18.04 / 20.04 / 22.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);
var pkgs = [
{'osver': '18.04', 'pkgname': 'freerdp2-dev', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'freerdp2-shadow-x11', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'freerdp2-wayland', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'freerdp2-x11', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'libfreerdp-client2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'libfreerdp-server2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'libfreerdp-shadow-subsystem2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'libfreerdp-shadow2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'libfreerdp2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'libuwac0-0', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'libuwac0-dev', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'libwinpr-tools2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'libwinpr2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'libwinpr2-dev', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '18.04', 'pkgname': 'winpr-utils', 'pkgver': '2.2.0+dfsg1-0ubuntu0.18.04.3'},
{'osver': '20.04', 'pkgname': 'freerdp2-dev', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'freerdp2-shadow-x11', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'freerdp2-wayland', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'freerdp2-x11', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'libfreerdp-client2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'libfreerdp-server2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'libfreerdp-shadow-subsystem2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'libfreerdp-shadow2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'libfreerdp2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'libuwac0-0', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'libuwac0-dev', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'libwinpr-tools2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'libwinpr2-2', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'libwinpr2-dev', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '20.04', 'pkgname': 'winpr-utils', 'pkgver': '2.2.0+dfsg1-0ubuntu0.20.04.3'},
{'osver': '22.04', 'pkgname': 'freerdp2-dev', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'freerdp2-shadow-x11', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'freerdp2-wayland', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'freerdp2-x11', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'libfreerdp-client2-2', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'libfreerdp-server2-2', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'libfreerdp-shadow-subsystem2-2', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'libfreerdp-shadow2-2', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'libfreerdp2-2', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'libuwac0-0', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'libuwac0-dev', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'libwinpr-tools2-2', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'libwinpr2-2', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'libwinpr2-dev', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'},
{'osver': '22.04', 'pkgname': 'winpr-utils', 'pkgver': '2.6.1+dfsg1-3ubuntu2.1'}
];
var flag = 0;
foreach package_array ( pkgs ) {
var osver = NULL;
var pkgname = NULL;
var pkgver = NULL;
if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
if (osver && pkgname && pkgver) {
if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : ubuntu_report_get()
);
exit(0);
}
else
{
var tested = ubuntu_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'freerdp2-dev / freerdp2-shadow-x11 / freerdp2-wayland / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | 18.04 | cpe:/o:canonical:ubuntu_linux:18.04:-:lts |
canonical | ubuntu_linux | 20.04 | cpe:/o:canonical:ubuntu_linux:20.04:-:lts |
canonical | ubuntu_linux | 22.04 | cpe:/o:canonical:ubuntu_linux:22.04:-:lts |
canonical | ubuntu_linux | freerdp2-dev | p-cpe:/a:canonical:ubuntu_linux:freerdp2-dev |
canonical | ubuntu_linux | freerdp2-shadow-x11 | p-cpe:/a:canonical:ubuntu_linux:freerdp2-shadow-x11 |
canonical | ubuntu_linux | freerdp2-wayland | p-cpe:/a:canonical:ubuntu_linux:freerdp2-wayland |
canonical | ubuntu_linux | freerdp2-x11 | p-cpe:/a:canonical:ubuntu_linux:freerdp2-x11 |
canonical | ubuntu_linux | libfreerdp-client2-2 | p-cpe:/a:canonical:ubuntu_linux:libfreerdp-client2-2 |
canonical | ubuntu_linux | libfreerdp-server2-2 | p-cpe:/a:canonical:ubuntu_linux:libfreerdp-server2-2 |
canonical | ubuntu_linux | libfreerdp-shadow-subsystem2-2 | p-cpe:/a:canonical:ubuntu_linux:libfreerdp-shadow-subsystem2-2 |