CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
97.6%
Nagios XI before 5.6.6 allows remote command execution as root. The exploit requires access to the server as the nagios user, or access as the admin user via the web interface. The getprofile.sh script, invoked by downloading a system profile (profile.php?cmd=download), is executed as root via a passwordless sudo entry; the script executes check_plugin, which is owned by the nagios user. A user logged into Nagios XI with permissions to modify plugins, or the nagios user on the server, can modify the check_plugin executable and insert malicious commands to execute as root.
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 70300
##
# (C) Tenable Network Security, Inc.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(154935);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/05");
script_cve_id("CVE-2019-15949");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/05/03");
script_name(english:"Nagios XI < 5.6.6 RCE");
script_set_attribute(attribute:"synopsis", value:
"The remote host has a web application affected by a remote code execution vulnerability.");
script_set_attribute(attribute:"description", value:
"Nagios XI before 5.6.6 allows remote command execution as root. The exploit requires access to the server as the nagios
user, or access as the admin user via the web interface. The getprofile.sh script, invoked by downloading a system
profile (profile.php?cmd=download), is executed as root via a passwordless sudo entry; the script executes
check_plugin, which is owned by the nagios user. A user logged into Nagios XI with permissions to modify plugins, or
the nagios user on the server, can modify the check_plugin executable and insert malicious commands to execute as root.
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://www.nagios.com/downloads/nagios-xi/change-log/");
script_set_attribute(attribute:"see_also", value:"https://www.nagios.com/products/security/");
script_set_attribute(attribute:"solution", value:
"Upgrade to Nagios XI 5.6.6 or later.");
script_set_attribute(attribute:"agent", value:"unix");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-15949");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"metasploit_name", value:'Nagios XI Prior to 5.6.6 getprofile.sh Authenticated Remote Command Execution');
script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/05");
script_set_attribute(attribute:"patch_publication_date", value:"2019/08/20");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/11/05");
script_set_attribute(attribute:"plugin_type", value:"combined");
script_set_attribute(attribute:"cpe", value:"cpe:/a:nagios:nagios_xi");
script_set_attribute(attribute:"thorough_tests", value:"true");
script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CGI abuses");
script_copyright(english:"This script is Copyright (C) 2021-2024 Tenable Network Security, Inc.");
script_dependencies("nagios_enterprise_detect.nasl", "nagiosxi_nix_installed.nbin");
script_require_ports("installed_sw/nagios_xi", "installed_sw/Nagios XI");
exit(0);
}
include('vcf_extras.inc');
var app_info = vcf::nagiosxi::get_app_info();
var constraints = [
{'fixed_version': '5.6.6'}
];
vcf::nagiosxi::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE, default_fix:'5.6.6');
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
97.6%