CVE-2004-0476
CVSS5.0
发布时间 :2004-08-18 00:00:00
修订时间 :2008-09-10 15:26:35
NMCOPS    

[原文]Buffer overflow in 3Com OfficeConnect Remote 812 ADSL Router 1.1.9.4 allows remote attackers to cause a denial of service (reboot or packet loss) via a long string containing Telnet escape characters to the Telnet port.


[CNNVD]3Com OfficeConnect Remote 812 ADSL Router 端口缓冲区溢出漏洞(CNNVD-200408-163)

        3Com OfficeConnect Remote 812 ADSL Router 1.1.9.4版本存在缓冲区溢出漏洞。远程攻击者可以通过包含到远程登录端口的Telnet转义字符的长字符串导致服务拒绝(重新启动或丢包)。

- 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)

cpe:/h:3com:3cp4144:1.1.9.43Com OfficeConnect Remote 812 ADSL Router 1.1.9.4
cpe:/h:3com:3cp41443Com OfficeConnect ADSL Router 812

- 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-2004-0476
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2004-0476
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200408-163
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/bid/10419
(VENDOR_ADVISORY)  BID  10419
http://www.idefense.com/application/poi/display?id=105&type=vulnerabilities
(VENDOR_ADVISORY)  IDEFENSE  20040526 OfficeConnect Remote 812 ADSL Router Telnet Protocol DoS Vulnerability
http://xforce.iss.net/xforce/xfdb/16257
(UNKNOWN)  XF  3com-officeconnect-telnet-bo(16257)
http://secunia.com/advisories/11716
(UNKNOWN)  SECUNIA  11716

- 漏洞信息

3Com OfficeConnect Remote 812 ADSL Router 端口缓冲区溢出漏洞
中危 缓冲区溢出
2004-08-18 00:00:00 2005-10-20 00:00:00
远程  
        3Com OfficeConnect Remote 812 ADSL Router 1.1.9.4版本存在缓冲区溢出漏洞。远程攻击者可以通过包含到远程登录端口的Telnet转义字符的长字符串导致服务拒绝(重新启动或丢包)。

- 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 (F33430)

iDEFENSE Security Advisory 2004-05-26.t (PacketStormID:F33430)
2004-05-26 00:00:00
iDefense Labs,Rafel Ivgi  idefense.com
advisory,remote,denial of service,overflow
CVE-2004-0476
[点击下载]

iDEFENSE Security Advisory 05.26.04: Remote exploitation of a buffer overflow in firmware release 1.1.9.4 of 3Com's OfficeConnect Remote 812 ADSL Router could allow a denial of service. By sending a specially formed long string to the telnet port of a vulnerable device containing Telnet escape sequences, it is possible to get it to either reboot or stop handling packets. If the device does not reboot spontaneously, it will require a manual reboot before continuing normal operation.

iDEFENSE Security Advisory 05.26.04
www.idefense.com/application/poi/display?id=105&type=vulnerabilities
May 26, 2004

I. BACKGROUND

The 3Com OfficeConnect Remote 812 ADSL Router is a standalone
bridge/router, with interfaces to a Local Area Network and an ADSL
interface to a Wide Area Network.

II. DESCRIPTION

Remote exploitation of a buffer overflow in firmware release 1.1.9.4 of
3Com's OfficeConnect Remote 812 ADSL Router could allow a denial of
service.

By sending a specially formed long string to the telnet port of a
vulnerable device containing Telnet escape sequences, it is possible to
get it to either reboot or stop handling packets. If the device does not
reboot spontaneously, it will require a manual reboot before continuing
normal operation.

III. ANALYSIS

Successful exploitation allows an attacker to stop the device from
responding thereby preventing legitimate users from accessing the
internet.

More information about the 3Com OfficeConnect Remote 812 ADSL Router is
available at
http://www.3com.com/products/en_US/detail.jsp?tab=support&pathtype=suppo
rt&sku=3CP4144.

IV. DETECTION

3Com OfficeConnect Remote 812 ADSL Router with the last firmware patch
available has been confirmed vulnerable.

V. WORKAROUNDS

A previously given workaround for other issues with the http interface
is available at the link shown. This shows how to configure the router
to prevent external access to the http port. By changing occurences of
port 80 into port 23, this method should also work for the telnet port.

http://support.3com.com/infodeli/tools/remote/ocradsl/http_filtering.pdf

VI. CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CAN-2004-0476 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org), which standardizes names for
security problems.

VII. DISCLOSURE TIMELINE

02/18/04  Exploit acquired by iDEFENSE
03/08/04  iDEFENSE Clients notified
03/11/04  Initial vendor notification - no response
03/30/04  Secondary vendor notification - no response
05/26/04  Public Disclosure

VIII. CREDIT

Rafel Ivgi is credited with this discovery.

Get paid for vulnerability research
http://www.idefense.com/poi/teams/vcp.jsp

IX. LEGAL NOTICES

Copyright (c) 2004 iDEFENSE, Inc.

Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDEFENSE. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically, please
email customerservice@idefense.com for permission.

Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct, indirect,
or consequential loss or damage arising from use of, or reliance on,
this information.

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html
    

- 漏洞信息

6424
3Com OfficeConnect 812 ADSL Router Telnet Protocol DoS
Remote / Network Access Denial of Service
Loss of Availability

- 漏洞描述

OfficeConnect 812 ADSL Router contains a flaw that may allow a remote denial of service. The issue is triggered when a specially crafted long string is sent to the telnet port, and will result in loss of availability for the platform.

- 时间线

2004-02-18 2004-05-24
Unknow 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(s): Block access to port 23.

- 相关参考

- 漏洞作者

- 漏洞信息

3Com OfficeConnect Remote 812 ADSL Router Telnet Buffer Overflow Vulnerability
Boundary Condition Error 10419
Yes No
2004-05-26 12:00:00 2009-07-12 05:16:00
Discovery is credited to Rafel Ivgi.

- 受影响的程序版本

3Com OfficeConnect Remote 812 ADSL Router 1.1.9 .4
3Com OfficeConnect Remote 812 ADSL Router

- 漏洞讨论

3Com OfficeConnect Remote 812 ADSL Router is prone to a remotely exploitable buffer overflow through the telnet port. Exploitation of this vulnerability will likely result in a denial of service.

- 漏洞利用

iDEFENSE is reported to possess an exploit that is not publicly available or known to be circulating in the wild.

- 解决方案

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 <mailto:vuldb@securityfocus.com>.

- 相关参考

     

     

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