Apache Struts Security Update (S2-020) - Active Check

# Copyright (C) 2014 Greenbone Networks GmbH
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

CPE = "cpe:/a:apache:struts";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.105910");
  script_version("2022-12-05T10:11:03+0000");
  script_cve_id("CVE-2014-0094");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_tag(name:"last_modification", value:"2022-12-05 10:11:03 +0000 (Mon, 05 Dec 2022)");
  script_tag(name:"creation_date", value:"2014-05-14 13:53:39 +0700 (Wed, 14 May 2014)");
  script_name("Apache Struts Security Update (S2-020) - Active Check");
  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2014 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_apache_struts_consolidation.nasl", "webmirror.nasl");
  script_require_ports("Services/www", 8080);
  script_mandatory_keys("apache/struts/http/detected");

  script_xref(name:"URL", value:"https://cwiki.apache.org/confluence/display/WW/S2-020");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/65999");
  script_xref(name:"Advisory-ID", value:"S2-020");
  script_xref(name:"URL", value:"https://cwiki.apache.org/confluence/display/WW/S2-058");
  script_xref(name:"Advisory-ID", value:"S2-058");

  script_tag(name:"summary", value:"ClassLoader Manipulation allows remote attackers to execute
  arbitrary Java code.");

  script_tag(name:"vuldetect", value:"Sends a crafted HTTP GET request and checks the response.");

  script_tag(name:"insight", value:"The ParametersInterceptor allows remote attackers to manipulate
  the ClassLoader via the class parameter, which is passed to the getClass method.");

  script_tag(name:"impact", value:"A remote attacker can execute arbitrary Java code via crafted
  parameters.");

  script_tag(name:"affected", value:"Apache Struts 2.0.0 through 2.3.16.1.");

  script_tag(name:"solution", value:"Update to version 2.3.16.2 or later.");

  script_tag(name:"qod_type", value:"remote_analysis");
  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, service:"www"))
  exit(0);

if (!get_app_location(cpe:CPE, port:port, nofork:TRUE))
  exit(0);

host = http_host_name(dont_add_port:TRUE);

# See if we have some apps deployed to check
if(!apps = http_get_kb_cgis(port:port, host:host))
  exit(0);

foreach app (apps) {
  if (".action" >< app) {
    end = strstr(app, " ");
    dir = app - end;
    url = dir + '?Class.classLoader.resources.dirContext.cacheObjectMaxSize=x';
    req = http_get(item:url, port:port);
    res = http_keepalive_send_recv(port:port, data:req, bodyonly:TRUE);

    if ("No result defined for action" >< res) {
      report = http_report_vuln_url(port:port, url:url);
      security_message(port:port, data:report);
      exit(0);
    }
  }
}

exit(99);