CVE-2006-3869
CVSS7.5
发布时间 :2006-08-22 21:04:00
修订时间 :2011-03-07 21:39:37
NMCOPS    

[原文]Heap-based buffer overflow in URLMON.DLL in Microsoft Internet Explorer 6 SP1 on Windows 2000 and XP SP1, with versions the MS06-042 patch before 20060824, allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a long URL on a website that uses HTTP 1.1 compression.


[CNNVD]Microsoft IE 6 urlmon.dll长URL缓冲区溢出漏洞(MS06-042)(CNNVD-200608-353)

        Internet Explorer是微软发布的非常流行的WEB浏览器。
        Internet Explorer的MS06-042补丁引入了URLMON.DLL文件,而这个文件中由于错误的使用lstrcpynA函数而导致了堆溢出漏洞。CMimeFt::Create为CMimeFt类的新例程分配了390h字节的堆块,在这个块的+160h偏移处有一个104h (MAX_PATH)字节的ASCII字符串:
        1A4268DD push 390h ; cb
        1A4268E2 call ??2@YAPAXI@Z ; operator new(uint)
        如果访问URL能够得到Web服务器的GZIP或deflate编码的响应的话,CMimeFt::Start就会试图使用lstrcpynA API函数将URL拷贝到104h字节的字符串缓冲区,但却传送了824h(十进制为2084)的最大长度参数,这是URL通常所能使用的最大长度:
        1A426199 push 824h ; iMaxLength
        1A42619E push eax ; lpString2
        1A42619F add esi, 160h
        1A4261A5 push esi ; lpString1
        1A4261A6 call ds:lstrcpynA
        这样CMimeFt类例程中的字段及临近的堆块内容都可能被恶意URL中攻击者所提供的数据覆盖。
        攻击者可以创建恶意WEB页面诱使用户访问,从而以该用户身份执行任意任意命令。如果该用户是管理员,则攻击者可以完全控制用户所在系统。攻击者可以自己创建恶意Web服务器,也可以利用一些使用HTTP/1.1协议和数据压缩的Web服务器来发动攻击。
        
        

- 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)

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-2006-3869
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2006-3869
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200608-353
(官方数据源) CNNVD

- 其它链接及资源

http://www.kb.cert.org/vuls/id/821156
(PATCH)  CERT-VN  VU#821156
http://www.microsoft.com/technet/security/advisory/923762.mspx
(PATCH)  CONFIRM  http://www.microsoft.com/technet/security/advisory/923762.mspx
http://support.microsoft.com/kb/923762/
(PATCH)  CONFIRM  http://support.microsoft.com/kb/923762/
http://xforce.iss.net/xforce/xfdb/28522
(UNKNOWN)  XF  ie-long-url-bo(28522)
http://www.vupen.com/english/advisories/2006/3356
(UNKNOWN)  VUPEN  ADV-2006-3356
http://www.securityfocus.com/bid/19667
(UNKNOWN)  BID  19667
http://www.securityfocus.com/archive/1/archive/1/444241/100/0/threaded
(UNKNOWN)  BUGTRAQ  20060824 EEYE: Internet Explorer Compressed Content URL Heap Overflow Vulnerability
http://www.securityfocus.com/archive/1/archive/1/444046/100/0/threaded
(UNKNOWN)  BUGTRAQ  20060822 EEYE:ALERT: MS06-042 Related Internet Explorer 'Crash' is Exploitable
http://securitytracker.com/id?1016731
(UNKNOWN)  SECTRACK  1016731
http://secunia.com/advisories/21557
(VENDOR_ADVISORY)  SECUNIA  21557
http://xforce.iss.net/xforce/xfdb/28893
(UNKNOWN)  XF  ie-url-compression-bo(28893)
http://www.securityfocus.com/archive/1/archive/1/444319/100/0/threaded
(UNKNOWN)  BUGTRAQ  20060825 NSFOCUS SA2006-08 : Microsoft IE6 urlmon.dll Long URL Buffer Overflow Vulnerability
http://www.osvdb.org/28132
(UNKNOWN)  OSVDB  28132
http://www.nsfocus.com/english/homepage/research/0608.htm
(UNKNOWN)  MISC  http://www.nsfocus.com/english/homepage/research/0608.htm
http://securityreason.com/securityalert/1441
(UNKNOWN)  SREASON  1441

- 漏洞信息

Microsoft IE 6 urlmon.dll长URL缓冲区溢出漏洞(MS06-042)
高危 缓冲区溢出
2006-08-22 00:00:00 2006-08-31 00:00:00
远程  
        Internet Explorer是微软发布的非常流行的WEB浏览器。
        Internet Explorer的MS06-042补丁引入了URLMON.DLL文件,而这个文件中由于错误的使用lstrcpynA函数而导致了堆溢出漏洞。CMimeFt::Create为CMimeFt类的新例程分配了390h字节的堆块,在这个块的+160h偏移处有一个104h (MAX_PATH)字节的ASCII字符串:
        1A4268DD push 390h ; cb
        1A4268E2 call ??2@YAPAXI@Z ; operator new(uint)
        如果访问URL能够得到Web服务器的GZIP或deflate编码的响应的话,CMimeFt::Start就会试图使用lstrcpynA API函数将URL拷贝到104h字节的字符串缓冲区,但却传送了824h(十进制为2084)的最大长度参数,这是URL通常所能使用的最大长度:
        1A426199 push 824h ; iMaxLength
        1A42619E push eax ; lpString2
        1A42619F add esi, 160h
        1A4261A5 push esi ; lpString1
        1A4261A6 call ds:lstrcpynA
        这样CMimeFt类例程中的字段及临近的堆块内容都可能被恶意URL中攻击者所提供的数据覆盖。
        攻击者可以创建恶意WEB页面诱使用户访问,从而以该用户身份执行任意任意命令。如果该用户是管理员,则攻击者可以完全控制用户所在系统。攻击者可以自己创建恶意Web服务器,也可以利用一些使用HTTP/1.1协议和数据压缩的Web服务器来发动攻击。
        
        

- 公告与补丁

        目前厂商已经发布了升级补丁以修复这个安全问题,补丁下载链接:
        http://www.microsoft.com/technet/security/bulletin/ms06-042.mspx
        http://www.microsoft.com/downloads/details.aspx?FamilyId=C335CAA9-B9E6-403D-A039-2D3DCA723653&displaylang=en

- 漏洞信息 (F49471)

NSFOCUS-SA2006-08.txt (PacketStormID:F49471)
2006-08-28 00:00:00
Hu Qianwei  nsfocus.com
advisory,remote,overflow,code execution
CVE-2006-3869
[点击下载]

The NSFocus Security Team has discovered a buffer overflow in Internet Explorer 6.0SP1 which allows for remote code execution via an overly-long URL.

NSFOCUS Security Advisory (SA2006-08)

Microsoft IE6 urlmon.dll Long URL Buffer Overflow Vulnerability

Release Date: 2006-08-25

CVE ID: CVE-2006-3869

http://www.nsfocus.com/english/homepage/research/0608.htm

Affected systems & software
===================

Internet Explorer 6 SP1 with MS06-042

 - Microsoft Windows XP SP1
 - Microsoft Windows 2000 SP4

Unaffected systems & software
===================


Summary
=========

NSFocus Security Team discovered a buffer overflow in IE 6.0SP1 which allows 
remote code execution via an over-long URL.

Description
============

Security Bulletin MS06-042 released by Microsoft on August 8th, 2006 fixed 
multiple vulnerabilities, but the update for IE 6 introduced a new vulnerability. 

When visiting websites with HTTP/1.1 protocol and data compression enabled, 
a buffer overflow might occur if an over-long URL is passed to IE 6. This 
overflow arises due to an incorrect call to function lstrncpyA, possibly
resulting in heap data structure corruption. Carefully crafted data might 
lead to arbitrary code execution. 

Attackers might craft a malicious WEB page and allure users to visit it in 
order to run arbitrary code with the users' privilege. If the user is the 
administrator, the attacker might gain complete control over the system. 
Attackers might host malicious web servers of their own, or exploit certain 
servers that enable HTTP/1.1 protocol and data compression in order to launch 
attacks. 

Workaround
=============

* Temporarily disable HTTP 1.1 support in IE. 
    
Vendor Status
==============

2006.08.10  Informed the vendor
2006.08.17  Vendor confirmed the vulnerability
2006.08.24  Microsoft released related patch and re-released MS06-042.

Detailed Microsoft Security Bulletin is available at:

http://www.microsoft.com/technet/security/bulletin/MS06-042.mspx

Additional Information
========================

The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CVE-2006-3869 to this issue. This is a candidate for inclusion in the 
CVE list (http://cve.mitre.org), which standardizes names for security problems.
Candidates may change significantly before they become official CVE entries.

Acknowledgment
===============

Hu Qianwei of NSFocus Security Team found the vulnerability.

DISCLAIMS
==========
THE INFORMATION PROVIDED IS RELEASED BY NSFOCUS "AS IS" WITHOUT WARRANTY
OF ANY KIND. NSFOCUS DISCLAIMS ALL WARRANTIES, EITHER EXPRESSED OR IMPLIED,
EXCEPT FOR THE WARRANTIES OF MERCHANTABILITY. IN NO EVENT SHALL NSFOCUS
BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT,
INCIDENTAL,CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES,
EVEN IF NSFOCUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
DISTRIBUTION OR REPRODUCTION OF THE INFORMATION IS PROVIDED THAT THE
ADVISORY IS NOT MODIFIED IN ANY WAY.

Copyright 1999-2006 NSFOCUS. All Rights Reserved. Terms of use.


NSFOCUS Security Team <security@nsfocus.com>
NSFOCUS INFORMATION TECHNOLOGY CO.,LTD
(http://www.nsfocus.com)

PGP Key: http://www.nsfocus.com/homepage/research/pgpkey.asc
Key fingerprint = F8F2 F5D1 EF74 E08C 02FE 1B90 D7BF 7877 C6A6 F6DA

    

- 漏洞信息

28132
Microsoft IE HTTP 1.1 URL Parsing Overflow
Remote / Network Access Input Manipulation
Loss of Integrity Patch / RCS
Exploit Unknown Vendor Verified

- 漏洞描述

A remote overflow exists in Microsoft's Internet Explorer. Internet Explorer fails to correctly handle a long URL using HTTP 1.1 compression resulting in a buffer overflow. With a specially crafted request, an attacker can execute arbitrary code resulting in a loss of integrity.

- 时间线

2006-08-23 Unknow
Unknow 2006-08-08

- 解决方案

Currently, there are no known workarounds or upgrades to correct this issue. However, Microsoft has released a patch to address this vulnerability.

- 相关参考

- 漏洞作者

- 漏洞信息

Microsoft Internet Explorer HTTP 1.1 and Compression Long URI Buffer Overflow Vulnerability
Boundary Condition Error 19667
Yes No
2006-08-22 12:00:00 2007-03-29 12:43:00
Reported by Derek Soeder of eEye and Dejan Kovacevic of Bold Internet Solutions. Independently discovered by Hu Qianwei of NSFocus Security Team.

- 受影响的程序版本

Microsoft Internet Explorer 6.0 SP1

- 漏洞讨论

Microsoft Internet Explorer is prone to a remote buffer-overflow vulnerability. A successful exploit may result in arbitrary code-execution in the context of the user running the browser.

This issue was introduced with the patches released with Microsoft advisory MS06-042.

Internet Explorer 6 SP1 running on Microsoft Windows 2000 and Windows XP SP1 is vulnerable to this issue.

- 漏洞利用

Currently we are not aware of any exploits for this issue. If you feel we are in error or if you are aware of more recent information, please mail us at: vuldb@securityfocus.com <mailto:vuldb@securityfocus.com>.

- 解决方案

Microsoft Security Bulletin MS06-042 has been reissued to address this issue. Please see the referenced advisory for more information.

Microsoft Security Bulletin MS06-042 has been updated to address a flaw in Mshtml.dll that was introduced in the previous fixes. Please see the referenced advisory for more information.


Microsoft Internet Explorer 6.0 SP1

- 相关参考

 

 

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