The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-3745-1 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 Ubuntu Security Notice USN-3745-1. 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(183638);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/21");
script_cve_id("CVE-2018-14526");
script_xref(name:"USN", value:"3745-1");
script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : wpa_supplicant and hostapd vulnerability (USN-3745-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by a vulnerability as
referenced in the USN-3745-1 advisory.
- An issue was discovered in rsn_supp/wpa.c in wpa_supplicant 2.0 through 2.6. Under certain conditions, the
integrity of EAPOL-Key messages is not checked, leading to a decryption oracle. An attacker within range
of the Access Point and client can abuse the vulnerability to recover sensitive information.
(CVE-2018-14526)
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://ubuntu.com/security/notices/USN-3745-1");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-14526");
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:"2018/08/08");
script_set_attribute(attribute:"patch_publication_date", value:"2018/08/20");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/10/21");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:hostapd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:wpagui");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:wpasupplicant");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:wpasupplicant-udeb");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Ubuntu Local Security Checks");
script_copyright(english:"Ubuntu Security Notice (C) 2023 Canonical, Inc. / NASL script (C) 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 (! ('14.04' >< os_release || '16.04' >< os_release || '18.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04 / 16.04 / 18.04', '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': '14.04', 'pkgname': 'hostapd', 'pkgver': '1:2.1-0ubuntu1.6'},
{'osver': '14.04', 'pkgname': 'wpagui', 'pkgver': '2.1-0ubuntu1.6'},
{'osver': '14.04', 'pkgname': 'wpasupplicant', 'pkgver': '2.1-0ubuntu1.6'},
{'osver': '14.04', 'pkgname': 'wpasupplicant-udeb', 'pkgver': '2.1-0ubuntu1.6'},
{'osver': '16.04', 'pkgname': 'hostapd', 'pkgver': '1:2.4-0ubuntu6.3'},
{'osver': '16.04', 'pkgname': 'wpagui', 'pkgver': '2.4-0ubuntu6.3'},
{'osver': '16.04', 'pkgname': 'wpasupplicant', 'pkgver': '2.4-0ubuntu6.3'},
{'osver': '16.04', 'pkgname': 'wpasupplicant-udeb', 'pkgver': '2.4-0ubuntu6.3'},
{'osver': '18.04', 'pkgname': 'hostapd', 'pkgver': '2:2.6-15ubuntu2.1'},
{'osver': '18.04', 'pkgname': 'wpagui', 'pkgver': '2:2.6-15ubuntu2.1'},
{'osver': '18.04', 'pkgname': 'wpasupplicant', 'pkgver': '2:2.6-15ubuntu2.1'},
{'osver': '18.04', 'pkgname': 'wpasupplicant-udeb', 'pkgver': '2:2.6-15ubuntu2.1'}
];
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_NOTE,
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, 'hostapd / wpagui / wpasupplicant / wpasupplicant-udeb');
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | 14.04 | cpe:/o:canonical:ubuntu_linux:14.04:-:lts |
canonical | ubuntu_linux | 16.04 | cpe:/o:canonical:ubuntu_linux:16.04:-:lts |
canonical | ubuntu_linux | 18.04 | cpe:/o:canonical:ubuntu_linux:18.04:-:lts |
canonical | ubuntu_linux | hostapd | p-cpe:/a:canonical:ubuntu_linux:hostapd |
canonical | ubuntu_linux | wpagui | p-cpe:/a:canonical:ubuntu_linux:wpagui |
canonical | ubuntu_linux | wpasupplicant | p-cpe:/a:canonical:ubuntu_linux:wpasupplicant |
canonical | ubuntu_linux | wpasupplicant-udeb | p-cpe:/a:canonical:ubuntu_linux:wpasupplicant-udeb |