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NetScreen ScreenOS可预测初始化TCP序列号漏洞


发布时间:2002-11-25
更新时间:2002-11-25
严重程度:
威胁程度:其它
错误类型:设计错误
利用方式:服务器模式

BUGTRAQ ID:6249

受影响系统
NetScreen ScreenOS 3.1.0
NetScreen ScreenOS 3.0.0
NetScreen ScreenOS 1.7
NetScreen ScreenOS 2.6
NetScreen ScreenOS 2.8
NetScreen ScreenOS 4.0
详细描述
NetScreen报告由ScreenOS生成的TCP序列号可预测,这可以导致使攻击者插入包或者对目标网络会话进行中间人攻击。

利用这个漏洞攻击者必须能访问网络会话通信,即一般需要访问内部网络。

测试代码
尚无

解决方案
升级ScreenOS版本:

NetScreen ScreenOS 3.1.0:

NetScreen Upgrade ScreenOS 4.0.1
http://www.netscreen.com/support/updates.asp

NetScreen ScreenOS 3.0.0:

NetScreen Upgrade ScreenOS 4.0.1
http://www.netscreen.com/support/updates.asp

NetScreen ScreenOS 1.7:

NetScreen Upgrade ScreenOS 4.0.1
http://www.netscreen.com/support/updates.asp

NetScreen ScreenOS 2.6:

NetScreen Upgrade ScreenOS 4.0.1
http://www.netscreen.com/support/updates.asp

NetScreen ScreenOS 2.8:

NetScreen Upgrade ScreenOS 4.0.1
http://www.netscreen.com/support/updates.asp

NetScreen ScreenOS 4.0:

NetScreen Upgrade ScreenOS 4.0.1
http://www.netscreen.com/support/updates.asp

相关信息
Netscreen Security Alert
参考:http://www.netscreen.com/support/alerts/Predictable_TCP_Initial_Sequence_Numbers.html
相关主页:http://www.netscreen.com/index.html