The remote Ubuntu 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4566-1 advisory.
The CalDAV feature in httpd in Cyrus IMAP 2.5.x through 2.5.12 and 3.0.x through 3.0.9 allows remote attackers to execute arbitrary code via a crafted HTTP PUT operation for an event with a long iCalendar property name. (CVE-2019-11356)
An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8. If sieve script uploading is allowed (3.x) or certain non-default sieve options are enabled (2.x), a user with a mail account on the service can use a sieve script containing a fileinto directive to create any mailbox with administrator privileges, because of folder mishandling in autosieve_createfolder() in imap/lmtp_sieve.c. (CVE-2019-19783)
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4566-1. The text
# itself is copyright (C) Canonical, Inc. See
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
#
include('compat.inc');
if (description)
{
script_id(141178);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/20");
script_cve_id("CVE-2019-11356", "CVE-2019-19783");
script_xref(name:"USN", value:"4566-1");
script_name(english:"Ubuntu 18.04 LTS : Cyrus IMAP Server vulnerabilities (USN-4566-1)");
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 host has packages installed that are affected by multiple vulnerabilities as referenced in
the USN-4566-1 advisory.
- The CalDAV feature in httpd in Cyrus IMAP 2.5.x through 2.5.12 and 3.0.x through 3.0.9 allows remote
attackers to execute arbitrary code via a crafted HTTP PUT operation for an event with a long iCalendar
property name. (CVE-2019-11356)
- An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8. If
sieve script uploading is allowed (3.x) or certain non-default sieve options are enabled (2.x), a user
with a mail account on the service can use a sieve script containing a fileinto directive to create any
mailbox with administrator privileges, because of folder mishandling in autosieve_createfolder() in
imap/lmtp_sieve.c. (CVE-2019-19783)
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-4566-1");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
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:N/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-2019-11356");
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:"2019/06/03");
script_set_attribute(attribute:"patch_publication_date", value:"2020/10/05");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/10/05");
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:"p-cpe:/a:canonical:ubuntu_linux:cyrus-admin");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cyrus-caldav");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cyrus-clients");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cyrus-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cyrus-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cyrus-imapd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cyrus-murder");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cyrus-nntpd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cyrus-pop3d");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:cyrus-replication");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcyrus-imap-perl");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Ubuntu Local Security Checks");
script_copyright(english:"Ubuntu Security Notice (C) 2020-2023 Canonical, Inc. / NASL script (C) 2020-2023 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)) audit(AUDIT_OS_NOT, 'Ubuntu 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': '18.04', 'pkgname': 'cyrus-admin', 'pkgver': '2.5.10-3ubuntu1.1'},
{'osver': '18.04', 'pkgname': 'cyrus-caldav', 'pkgver': '2.5.10-3ubuntu1.1'},
{'osver': '18.04', 'pkgname': 'cyrus-clients', 'pkgver': '2.5.10-3ubuntu1.1'},
{'osver': '18.04', 'pkgname': 'cyrus-common', 'pkgver': '2.5.10-3ubuntu1.1'},
{'osver': '18.04', 'pkgname': 'cyrus-dev', 'pkgver': '2.5.10-3ubuntu1.1'},
{'osver': '18.04', 'pkgname': 'cyrus-imapd', 'pkgver': '2.5.10-3ubuntu1.1'},
{'osver': '18.04', 'pkgname': 'cyrus-murder', 'pkgver': '2.5.10-3ubuntu1.1'},
{'osver': '18.04', 'pkgname': 'cyrus-nntpd', 'pkgver': '2.5.10-3ubuntu1.1'},
{'osver': '18.04', 'pkgname': 'cyrus-pop3d', 'pkgver': '2.5.10-3ubuntu1.1'},
{'osver': '18.04', 'pkgname': 'cyrus-replication', 'pkgver': '2.5.10-3ubuntu1.1'},
{'osver': '18.04', 'pkgname': 'libcyrus-imap-perl', 'pkgver': '2.5.10-3ubuntu1.1'}
];
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_HOLE,
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, 'cyrus-admin / cyrus-caldav / cyrus-clients / cyrus-common / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | 18.04 | cpe:/o:canonical:ubuntu_linux:18.04:-:lts |
canonical | ubuntu_linux | cyrus-admin | p-cpe:/a:canonical:ubuntu_linux:cyrus-admin |
canonical | ubuntu_linux | cyrus-caldav | p-cpe:/a:canonical:ubuntu_linux:cyrus-caldav |
canonical | ubuntu_linux | cyrus-clients | p-cpe:/a:canonical:ubuntu_linux:cyrus-clients |
canonical | ubuntu_linux | cyrus-common | p-cpe:/a:canonical:ubuntu_linux:cyrus-common |
canonical | ubuntu_linux | cyrus-dev | p-cpe:/a:canonical:ubuntu_linux:cyrus-dev |
canonical | ubuntu_linux | cyrus-imapd | p-cpe:/a:canonical:ubuntu_linux:cyrus-imapd |
canonical | ubuntu_linux | cyrus-murder | p-cpe:/a:canonical:ubuntu_linux:cyrus-murder |
canonical | ubuntu_linux | cyrus-nntpd | p-cpe:/a:canonical:ubuntu_linux:cyrus-nntpd |
canonical | ubuntu_linux | cyrus-pop3d | p-cpe:/a:canonical:ubuntu_linux:cyrus-pop3d |