FTPGetter 'PASV' Command Remote Stack Buffer Overflow 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.801839");
  script_version("2023-07-28T05:05:23+0000");
  script_tag(name:"last_modification", value:"2023-07-28 05:05:23 +0000 (Fri, 28 Jul 2023)");
  script_tag(name:"creation_date", value:"2011-02-07 15:21:16 +0100 (Mon, 07 Feb 2011)");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_name("FTPGetter 'PASV' Command Remote Stack Buffer Overflow Vulnerability");
  script_xref(name:"URL", value:"https://secunia.com/advisories/41857");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/46120");
  script_xref(name:"URL", value:"http://www.exploit-db.com/exploits/16101/");
  script_xref(name:"URL", value:"http://downloads.securityfocus.com/vulnerabilities/exploits/46120.py");

  script_tag(name:"qod_type", value:"registry");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2011 Greenbone AG");
  script_family("FTP");
  script_dependencies("smb_reg_service_pack.nasl");
  script_require_ports(139, 445);
  script_mandatory_keys("SMB/WindowsVersion");
  script_tag(name:"insight", value:"The flaw is due to a boundary error when reading a log file
using fgets() which can be exploited to cause a stack-based buffer overflow
by tricking a user into connecting to a malicious FTP server and sending a
specially crafted 'PWD' or 'PASV' response.");
  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.");
  script_tag(name:"summary", value:"FTPGetter FTP Client is prone to a buffer overflow vulnerability.");
  script_tag(name:"impact", value:"Successful exploitation allows execution of arbitrary code.");
  script_tag(name:"affected", value:"FTPGetter version 3.58.0.21 and prior.");
  script_tag(name:"solution_type", value:"WillNotFix");
  exit(0);
}


include("smb_nt.inc");
include("version_func.inc");
include("secpod_smb_func.inc");

if(!get_kb_item("SMB/WindowsVersion")){
  exit(0);
}

key = "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\";

if(!registry_key_exists(key:key)) {
    exit(0);
}

foreach item (registry_enum_keys(key:key))
{
  fgName = registry_get_sz(key:key + item, item:"DisplayName");

  if("FTPGetter" >< fgName)
  {
    fgpath = registry_get_sz(key: key + item , item:"DisplayIcon");
    if(!isnull(fgpath))
    {
      share = ereg_replace(pattern:"([A-Z]):.*", replace:"\1$", string:fgpath);
      file = ereg_replace(pattern:"[A-Z]:(.*)", replace:"\1", string:fgpath);

      fgVer = GetVer(file:file, share:share);
      if(fgVer != NULL)
      {
        if(version_is_less_equal(version:fgVer, test_version:"3.58.0.21"))
        {
          security_message( port: 0, data: "The target host was found to be vulnerable" );
          exit(0);
        }
      }
    }
  }
}