发布日期：2004-08-03
更新日期：2004-08-09

受影响系统：

NetScreen ScreenOS 5.0
NetScreen ScreenOS 4.0.3 r4
NetScreen ScreenOS 4.0.3 r3
NetScreen ScreenOS 4.0.3 r2
NetScreen ScreenOS 4.0.3 r1
NetScreen ScreenOS 4.0.3
NetScreen ScreenOS 4.0.3
NetScreen ScreenOS 4.0.2
NetScreen ScreenOS 4.0.1 r9
NetScreen ScreenOS 4.0.1 r8
NetScreen ScreenOS 4.0.1 r7
NetScreen ScreenOS 4.0.1 r6
NetScreen ScreenOS 4.0.1 r5
NetScreen ScreenOS 4.0.1 r4
NetScreen ScreenOS 4.0.1 r3
NetScreen ScreenOS 4.0.1 r2
NetScreen ScreenOS 4.0.1 r10
NetScreen ScreenOS 4.0.1 r1
NetScreen ScreenOS 4.0.1
NetScreen ScreenOS 4.0-DIAL
NetScreen ScreenOS 4.0 r9
NetScreen ScreenOS 4.0 r8
NetScreen ScreenOS 4.0 r7
NetScreen ScreenOS 4.0 r6
NetScreen ScreenOS 4.0 r5
NetScreen ScreenOS 4.0 r4
NetScreen ScreenOS 4.0 r3
NetScreen ScreenOS 4.0 r2
NetScreen ScreenOS 4.0 r12
NetScreen ScreenOS 4.0 r11
NetScreen ScreenOS 4.0 r10
NetScreen ScreenOS 4.0 r1
NetScreen ScreenOS 4.0
NetScreen ScreenOS 3.1.1r2
NetScreen ScreenOS 3.1.0r9
NetScreen ScreenOS 3.1.0r2
NetScreen ScreenOS 3.1.0r1
NetScreen ScreenOS 3.1.0
NetScreen ScreenOS 3.0.3r1.1
NetScreen ScreenOS 3.0.3
NetScreen ScreenOS 3.0.2
NetScreen ScreenOS 3.0.1r2
NetScreen ScreenOS 3.0.1r1
NetScreen ScreenOS 3.0.1
NetScreen ScreenOS 3.0.0r4
NetScreen ScreenOS 3.0.0r3
NetScreen ScreenOS 3.0.0r2
NetScreen ScreenOS 3.0.0r1
NetScreen ScreenOS 3.0.0
NetScreen ScreenOS 2.8.0r1
NetScreen ScreenOS 2.8
NetScreen ScreenOS 2.7.1r3
NetScreen ScreenOS 2.7.1r2
NetScreen ScreenOS 2.7.1r1
NetScreen ScreenOS 2.7.1
NetScreen ScreenOS 2.6.1r5
NetScreen ScreenOS 2.6.1r4
NetScreen ScreenOS 2.6.1r3
NetScreen ScreenOS 2.6.1r2
NetScreen ScreenOS 2.6.1r1
NetScreen ScreenOS 2.6.1
NetScreen ScreenOS 2.6
NetScreen ScreenOS 2.5r6
NetScreen ScreenOS 2.5r2
NetScreen ScreenOS 2.5r1
NetScreen ScreenOS 2.5
NetScreen ScreenOS 2.10r4
NetScreen ScreenOS 2.10r3
NetScreen ScreenOS 2.1
NetScreen ScreenOS 2.0.1r8
NetScreen ScreenOS 1.7
NetScreen ScreenOS 1.66r2
NetScreen ScreenOS 1.66
NetScreen ScreenOS 1.64

描述：

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BUGTRAQ  ID: 10854
CVE(CAN) ID: CVE-2004-1446

Netscreen是一款防火墙安全解决方案，其操作系统为ScreenOS。

Juniper Networks NetScreen防火墙SSHv1服务实现存在问题，远程攻击者可以利用这个漏洞使ScreenOS崩溃。

恶意攻击者可以连接Netscreen防火墙的SSHv1服务，在验证之前对其进行拒绝服务攻击。防火墙会重新启动或挂起，停止正常的服务。

<*来源：Mark Ellzey Thomas
  
  链接：http://www.juniper.net/support/security/alerts/screenos-sshv1-2.txt
*>

建议：

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临时解决方法：

如果您不能立刻安装补丁或者升级，NSFOCUS建议您采取以下措施以降低威胁：

* 关闭SSHv1服务。
* 设置防火墙只允许可信IP连接。

厂商补丁：

NetScreen
---------
供应商已经提供如下版本的补丁：

5.0.0r8, 5.0.0r8.1, 4.0.0r13, 4.0.1r11, 4.0.3r8, 4.0.1-Dial2r5, 4.0.1-SBRr5, 4.0.1-IGMP3r4, 4.0.1-MCASTr2, and 3.0.3r9.

用户可联系供应商获得补丁：

http://www.juniper.net/support/

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