CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
EPSS
Percentile
89.3%
The remote Windows host contains a version of Ipswitch’s WS_FTP Professional that is earlier than 12.2. Such versions are prone to a format-string vulnerability because they fail to properly sanitize user-supplied input before passing it as the format specifier to a formatted-printing function.
If an attacker can trick a user into connecting to a malicious web server using the affected application, this issue could be exploited to execute arbitrary code subject to the user’s privileges.
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(44046);
script_version("1.11");
script_cvs_date("Date: 2018/11/15 20:50:29");
script_cve_id("CVE-2009-4775");
script_bugtraq_id(36297);
script_name(english:"WS_FTP Pro HTTP Server Response Format String");
script_summary(english:"Checks version of wsftpgui.exe");
script_set_attribute(attribute:"synopsis", value:
"The remote Windows host contains a program that is prone to a remote
format string attack.");
script_set_attribute(attribute:"description", value:
"The remote Windows host contains a version of Ipswitch's WS_FTP
Professional that is earlier than 12.2. Such versions are prone to a
format-string vulnerability because they fail to properly sanitize
user-supplied input before passing it as the format specifier to a
formatted-printing function.
If an attacker can trick a user into connecting to a malicious web
server using the affected application, this issue could be exploited
to execute arbitrary code subject to the user's privileges.");
# https://docs.ipswitch.com/WS_FTP%20122/ReleaseNotes/English/index.htm?k_id=ipswitch_com_ftp_documents_worldwide_ws_ftp122releasenotesenglish
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a90721b7");
script_set_attribute(attribute:"solution", value:"Upgrade to WS_FTP Pro for Windows version 12.2 or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2009/09/09");
script_set_attribute(attribute:"patch_publication_date", value:"2009/11/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2010/01/18");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:ipswitch:ws_ftp");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows");
script_copyright(english:"This script is Copyright (C) 2010-2018 Tenable Network Security, Inc.");
script_dependencies("smb_hotfixes.nasl");
script_require_keys("SMB/Registry/Enumerated");
script_require_ports(139, 445);
exit(0);
}
include("global_settings.inc");
include("smb_func.inc");
include("audit.inc");
if (!get_kb_item("SMB/Registry/Enumerated")) exit(1, "The registry wasn't enumerated.");
# Connect to the appropriate share.
name = kb_smb_name();
port = kb_smb_transport();
login = kb_smb_login();
pass = kb_smb_password();
domain = kb_smb_domain();
if(! smb_session_init()) audit(AUDIT_FN_FAIL, 'smb_session_init');
rc = NetUseAdd(login:login, password:pass, domain:domain, share:"IPC$");
if (rc != 1)
{
NetUseDel();
exit(1, "Can't connect to IPC$ share.");
}
# Connect to remote registry.
hklm = RegConnectRegistry(hkey:HKEY_LOCAL_MACHINE);
if (isnull(hklm))
{
NetUseDel();
exit(1, "Can't connect to remote registry.");
}
# Check whether it's installed.
path = NULL;
key = "SOFTWARE\Ipswitch\WS_FTP";
key_h = RegOpenKey(handle:hklm, key:key, mode:MAXIMUM_ALLOWED);
if (!isnull(key_h))
{
value = RegQueryValue(handle:key_h, item:"Dir");
if (!isnull(value))
{
path = value[1];
path = ereg_replace(pattern:"^(.+)\\$", replace:"\1", string:path);
}
RegCloseKey(handle:key_h);
}
RegCloseKey(handle:hklm);
if (isnull(path))
{
NetUseDel();
exit(0, "WS_FTP Pro is not installed.");
}
# Check the version of the main exe.
share = ereg_replace(pattern:"^([A-Za-z]):.*", replace:"\1$", string:path);
exe = ereg_replace(pattern:"^[A-Za-z]:(.*)", replace:"\1\wsftpgui.exe", string:path);
NetUseDel(close:FALSE);
rc = NetUseAdd(login:login, password:pass, domain:domain, share:share);
if (rc != 1)
{
NetUseDel();
exit(1, "Can't connect to "+share+" share.");
}
fh = CreateFile(
file:exe,
desired_access:GENERIC_READ,
file_attributes:FILE_ATTRIBUTE_NORMAL,
share_mode:FILE_SHARE_READ,
create_disposition:OPEN_EXISTING
);
ver = NULL;
if (!isnull(fh))
{
ver = GetFileVersion(handle:fh);
CloseFile(handle:fh);
}
NetUseDel();
# Check the version number.
if (!isnull(ver))
{
version = string(ver[0], ".", ver[1], ".", ver[2], ".", ver[3]);
if (
(ver[0] > 1900 && ver[0] <= 2007) ||
ver[0] < 12 ||
(ver[0] == 12 && ver[1] < 2)
)
{
if (report_verbosity > 0)
{
report =
'\n' +
' Version : ' + version + '\n' +
' Path : ' + path + '\n';
security_hole(port:port, extra:report);
}
else security_hole(port);
exit(0);
}
exit(0, "WS_FTP Pro version "+version+" is installed and not vulnerable.");
}
else exit(1, "Couldn't get file version of '"+exe+"'.");