4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
0.015 Low
EPSS
Percentile
87.1%
The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5527-2 advisory.
Check_MK before 1.2.8p26 mishandles certain errors within the failed-login save feature because of a race condition, which allows remote attackers to obtain sensitive user information by reading a GUI crash report. (CVE-2017-14955)
A cross site scripting (XSS) vulnerability exists in Check_MK versions 1.4.0x prior to 1.4.0p6, allowing an unauthenticated remote attacker to inject arbitrary HTML or JavaScript via the _username parameter when attempting authentication to webapi.py, which is returned unencoded with content type text/html.
(CVE-2017-9781)
The CheckMK management web console (versions 1.5.0 to 2.0.0) does not sanitise user input in various parameters of the WATO module. This allows an attacker to open a backdoor on the device with HTML content and interpreted by the browser (such as JavaScript or other client-side scripts), the XSS payload will be triggered when the user accesses some specific sections of the application. In the same sense a very dangerous potential way would be when an attacker who has the monitor role (not administrator) manages to get a stored XSS to steal the secretAutomation (for the use of the API in administrator mode) and thus be able to create another administrator user who has high privileges on the CheckMK monitoring web console.
Another way is that persistent XSS allows an attacker to modify the displayed content or change the victim’s information. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session. (CVE-2021-36563)
Checkmk <=2.0.0p19 Fixed in 2.0.0p20 and Checkmk <=1.6.0p27 Fixed in 1.6.0p28 are affected by a Cross Site Scripting (XSS) vulnerability. The Alias of a site was not properly escaped when shown as condition for notifications. (CVE-2022-24565)
Note that Nessus has not tested for these issues 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-5527-2. 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(183699);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/23");
script_cve_id(
"CVE-2017-9781",
"CVE-2017-14955",
"CVE-2021-36563",
"CVE-2022-24565"
);
script_xref(name:"USN", value:"5527-2");
script_name(english:"Ubuntu 16.04 ESM : Checkmk vulnerabilities (USN-5527-2)");
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 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in
the USN-5527-2 advisory.
- Check_MK before 1.2.8p26 mishandles certain errors within the failed-login save feature because of a race
condition, which allows remote attackers to obtain sensitive user information by reading a GUI crash
report. (CVE-2017-14955)
- A cross site scripting (XSS) vulnerability exists in Check_MK versions 1.4.0x prior to 1.4.0p6, allowing
an unauthenticated remote attacker to inject arbitrary HTML or JavaScript via the _username parameter when
attempting authentication to webapi.py, which is returned unencoded with content type text/html.
(CVE-2017-9781)
- The CheckMK management web console (versions 1.5.0 to 2.0.0) does not sanitise user input in various
parameters of the WATO module. This allows an attacker to open a backdoor on the device with HTML content
and interpreted by the browser (such as JavaScript or other client-side scripts), the XSS payload will be
triggered when the user accesses some specific sections of the application. In the same sense a very
dangerous potential way would be when an attacker who has the monitor role (not administrator) manages to
get a stored XSS to steal the secretAutomation (for the use of the API in administrator mode) and thus be
able to create another administrator user who has high privileges on the CheckMK monitoring web console.
Another way is that persistent XSS allows an attacker to modify the displayed content or change the
victim's information. Successful exploitation requires access to the web management interface, either with
valid credentials or with a hijacked session. (CVE-2021-36563)
- Checkmk <=2.0.0p19 Fixed in 2.0.0p20 and Checkmk <=1.6.0p27 Fixed in 1.6.0p28 are affected by a Cross Site
Scripting (XSS) vulnerability. The Alias of a site was not properly escaped when shown as condition for
notifications. (CVE-2022-24565)
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-5527-2");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
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:R/S:C/C:L/I:L/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-9781");
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:"2017/06/21");
script_set_attribute(attribute:"patch_publication_date", value:"2022/07/20");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/10/23");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:esm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:check-mk-agent");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:check-mk-agent-logwatch");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:check-mk-config-icinga");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:check-mk-config-nagios3");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:check-mk-livestatus");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:check-mk-multisite");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:check-mk-server");
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 (! ('16.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04', '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': '16.04', 'pkgname': 'check-mk-agent', 'pkgver': '1.2.6p12-1ubuntu0.16.04.1+esm1'},
{'osver': '16.04', 'pkgname': 'check-mk-agent-logwatch', 'pkgver': '1.2.6p12-1ubuntu0.16.04.1+esm1'},
{'osver': '16.04', 'pkgname': 'check-mk-config-icinga', 'pkgver': '1.2.6p12-1ubuntu0.16.04.1+esm1'},
{'osver': '16.04', 'pkgname': 'check-mk-config-nagios3', 'pkgver': '1.2.6p12-1ubuntu0.16.04.1+esm1'},
{'osver': '16.04', 'pkgname': 'check-mk-livestatus', 'pkgver': '1.2.6p12-1ubuntu0.16.04.1+esm1'},
{'osver': '16.04', 'pkgname': 'check-mk-multisite', 'pkgver': '1.2.6p12-1ubuntu0.16.04.1+esm1'},
{'osver': '16.04', 'pkgname': 'check-mk-server', 'pkgver': '1.2.6p12-1ubuntu0.16.04.1+esm1'}
];
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, 'check-mk-agent / check-mk-agent-logwatch / check-mk-config-icinga / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | 16.04 | cpe:/o:canonical:ubuntu_linux:16.04:-:esm |
canonical | ubuntu_linux | check-mk-agent | p-cpe:/a:canonical:ubuntu_linux:check-mk-agent |
canonical | ubuntu_linux | check-mk-agent-logwatch | p-cpe:/a:canonical:ubuntu_linux:check-mk-agent-logwatch |
canonical | ubuntu_linux | check-mk-config-icinga | p-cpe:/a:canonical:ubuntu_linux:check-mk-config-icinga |
canonical | ubuntu_linux | check-mk-config-nagios3 | p-cpe:/a:canonical:ubuntu_linux:check-mk-config-nagios3 |
canonical | ubuntu_linux | check-mk-livestatus | p-cpe:/a:canonical:ubuntu_linux:check-mk-livestatus |
canonical | ubuntu_linux | check-mk-multisite | p-cpe:/a:canonical:ubuntu_linux:check-mk-multisite |
canonical | ubuntu_linux | check-mk-server | p-cpe:/a:canonical:ubuntu_linux:check-mk-server |
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
0.015 Low
EPSS
Percentile
87.1%