7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.975 High
EPSS
Percentile
100.0%
The remote Citrix ADC or Citrix NetScaler Gateway device is affected by an arbitrary code execution vulnerability.
An unauthenticated, remote attacker may be able to leverage this vulnerability to perform arbitrary code execution on an affected host.
Please refer to advisory CTX267027 for more information.
##
# (C) Tenable Network Security, Inc.
##
include('compat.inc');
if (description)
{
script_id(132397);
script_version("1.17");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/01/19");
script_cve_id("CVE-2019-19781");
script_xref(name:"IAVA", value:"2020-A-0001-S");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/05/03");
script_xref(name:"CISA-NCAS", value:"AA22-011A");
script_xref(name:"CEA-ID", value:"CEA-2020-0129");
script_xref(name:"CEA-ID", value:"CEA-2020-0122");
script_xref(name:"CEA-ID", value:"CEA-2019-0742");
script_name(english:"Citrix ADC and Citrix NetScaler Gateway Arbitrary Code Execution (CTX267027)");
script_set_attribute(attribute:"synopsis", value:
"The remote device is affected by an arbitrary code execution vulnerability.");
script_set_attribute(attribute:"description", value:
"The remote Citrix ADC or Citrix NetScaler Gateway device is affected by an arbitrary code execution vulnerability.
An unauthenticated, remote attacker may be able to leverage this vulnerability to perform arbitrary code execution on
an affected host.
Please refer to advisory CTX267027 for more information.");
script_set_attribute(attribute:"see_also", value:"https://support.citrix.com/article/CTX267027");
script_set_attribute(attribute:"solution", value:
"For versions 10.5.x, 11.1.x, 12.0.x, 12.1.x and 13.0.x, upgrade to 10.5.70.12, 11.1.63.15, 12.0.63.13, 12.1.55.18 and
13.0.47.24 respectively.");
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:H/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:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-19781");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploit_framework_core", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"metasploit_name", value:'Citrix ADC (NetScaler) Directory Traversal RCE');
script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
script_set_attribute(attribute:"canvas_package", value:"CANVAS");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/12/17");
script_set_attribute(attribute:"patch_publication_date", value:"2019/12/17");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/24");
script_set_attribute(attribute:"plugin_type", value:"combined");
script_set_attribute(attribute:"cpe", value:"cpe:/o:citrix:netscaler_access_gateway_firmware");
script_set_attribute(attribute:"stig_severity", value:"II");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CGI abuses");
script_copyright(english:"This script is Copyright (C) 2019-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("citrix_netscaler_detect.nbin");
script_require_keys("Host/NetScaler/Detected");
exit(0);
}
include('vcf_extras_netscaler.inc');
var app_info = vcf::citrix_netscaler::get_app_info();
var constraints = [
{'min_version': '10.5', 'fixed_version': '10.5.70.12', 'fixed_display': '10.5-70.12'},
{'min_version': '11.1', 'fixed_version': '11.1.63.15', 'fixed_display': '11.1-63.15'},
{'min_version': '12.0', 'fixed_version': '12.0.63.13', 'fixed_display': '12.0-63.13'},
{'min_version': '12.1', 'fixed_version': '12.1.55.18', 'fixed_display': '12.1-55.18'},
{'min_version': '13.0', 'fixed_version': '13.0.47.24', 'fixed_display': '13.0-47.24'}
];
vcf::citrix_netscaler::check_version_and_report(
app_info: app_info,
constraints: constraints,
severity:SECURITY_HOLE
);
Vendor | Product | Version | CPE |
---|---|---|---|
citrix | netscaler_access_gateway_firmware | cpe:/o:citrix:netscaler_access_gateway_firmware |
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.975 High
EPSS
Percentile
100.0%