CVE-2002-0443
CVSS4.6
发布时间 :2002-07-26 00:00:00
修订时间 :2008-09-05 16:28:02
NMCOS    

[原文]Microsoft Windows 2000 allows local users to bypass the policy that prohibits reusing old passwords by changing the current password before it expires, which does not enable the check for previous passwords.


[CNNVD]微软Windows 2K口令策略被绕过漏洞(CNNVD-200207-129)

        
        微软Windows 2K允许管理员设置一些口令策略以强制使用强口令。比如,管理员可以指定用户口令有效期限,可以指定系统记录某用户以前使用过的18个口令。
        当该用户的口令到期后,系统强制用户修改口令,并检查新口令是否是以前使用过的18个口令中的一个,如果不是,继续做其它检查,直至口令修改成功。
        但是,如果该用户在自己口令到期前修改它,系统未与以前使用过的18个口令做对比,而直接进行其它检查。这允许用户循环使用某些最近使用过的口令,带来安全隐患。
        

- CVSS (基础分值)

CVSS分值: 4.6 [中等(MEDIUM)]
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: LOCAL [漏洞利用需要具有物理访问权限或本地帐户]
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:/o:microsoft:windows_2000::sp2:advanced_serverMicrosoft Windows 2000 Advanced Server SP2
cpe:/o:microsoft:windows_2000::sp1:professionalMicrosoft Windows 2000 Professional SP1
cpe:/o:microsoft:windows_2000:::server
cpe:/o:microsoft:windows_2000::sp1:advanced_serverMicrosoft Windows 2000 Advanced Server SP1
cpe:/o:microsoft:windows_2000:::datacenter_server
cpe:/o:microsoft:windows_2000::sp2:professionalMicrosoft Windows 2000 Professional SP2
cpe:/o:microsoft:windows_2000:::advanced_server
cpe:/o:microsoft:windows_2000::sp1:datacenter_serverMicrosoft Windows 2000 Datacenter Server SP1
cpe:/o:microsoft:windows_2000::sp2:serverMicrosoft Windows 2000 Server SP2
cpe:/o:microsoft:windows_2000:::professional
cpe:/o:microsoft:windows_2000::sp1:serverMicrosoft Windows 2000 Server SP1
cpe:/o:microsoft:windows_2000::sp2:datacenter_serverMicrosoft Windows 2000 Datacenter Server SP2

- 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-2002-0443
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2002-0443
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200207-129
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/bid/4256
(VENDOR_ADVISORY)  BID  4256
http://www.iss.net/security_center/static/8402.php
(VENDOR_ADVISORY)  XF  win2k-password-bypass-policy(8402)
http://online.securityfocus.com/archive/1/260704
(VENDOR_ADVISORY)  BUGTRAQ  20020307 Windows 2000 password policy bypass possibility

- 漏洞信息

微软Windows 2K口令策略被绕过漏洞
中危 设计错误
2002-07-26 00:00:00 2005-05-13 00:00:00
本地  
        
        微软Windows 2K允许管理员设置一些口令策略以强制使用强口令。比如,管理员可以指定用户口令有效期限,可以指定系统记录某用户以前使用过的18个口令。
        当该用户的口令到期后,系统强制用户修改口令,并检查新口令是否是以前使用过的18个口令中的一个,如果不是,继续做其它检查,直至口令修改成功。
        但是,如果该用户在自己口令到期前修改它,系统未与以前使用过的18个口令做对比,而直接进行其它检查。这允许用户循环使用某些最近使用过的口令,带来安全隐患。
        

- 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:
        * 暂时没有好的临时解决方法。
        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

13424
Microsoft Windows 2000 Current Password Change Policy Bypass

- 漏洞描述

Unknown or Incomplete

- 时间线

2002-05-07 Unknow
Unknow Unknow

- 解决方案

Unknown or Incomplete

- 相关参考

- 漏洞作者

Unknown or Incomplete

- 漏洞信息

Microsoft Windows 2000 Password Policy Bypass Vulnerability
Design Error 4256
No Yes
2002-03-08 12:00:00 2009-07-11 11:56:00
This issue was reported to BugTraq by Leonid Mamtchenkov <leonid@francoudi.com>.

- 受影响的程序版本

Microsoft Windows 2000 Server SP2
Microsoft Windows 2000 Server SP1
Microsoft Windows 2000 Server
+ Avaya DefinityOne Media Servers
+ Avaya IP600 Media Servers
+ Avaya S3400 Message Application Server 0
+ Avaya S8100 Media Servers 0
Microsoft Windows 2000 Professional SP2
Microsoft Windows 2000 Professional SP1
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Datacenter Server SP2
Microsoft Windows 2000 Datacenter Server SP1
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Advanced Server SP2
Microsoft Windows 2000 Advanced Server SP1
Microsoft Windows 2000 Advanced Server

- 漏洞讨论

Microsoft Windows 2000 allows administrators to set a password policy to enforce the usage of strong passwords. The administrator may specify how long a user's password is valid for and certain requirements for the type of password a user may choose.

When a user's password expires under such a policy, they are forced by Windows 2000 to change it. The policy may be set so that the new password must meet certain requirements to be valid. One of these requirements is that the password does not match one of the previous 18 passwords for that user.

However, it has been found that some aspects of the password policy may be subverted if a user changes their password before it expires and the system prompts them to do so. Specifically, the new password is not checked against the list of user's previous passwords. Under these circumstances, the new password must still meet other requirements of the password policy.

This issue may violate the password policy by allowing a user to recycle recently used passwords when the administrator has made efforts to restrict the user from doing so.

- 漏洞利用

There is no exploit required.

- 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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