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Cisco VPN Concentrator FTP Banner设备信息泄露漏洞


发布时间:2002-09-10
更新时间:2002-09-10
严重程度:
威胁程度:服务器信息泄露
错误类型:配置错误
利用方式:服务器模式

BUGTRAQ ID:5623

受影响系统
Cisco VPN 3000 Concentrator 2.0
Cisco VPN 3000 Concentrator 2.5.2 (F)
Cisco VPN 3000 Concentrator 2.5.2 (D)
Cisco VPN 3000 Concentrator 2.5.2 (C)
Cisco VPN 3000 Concentrator 2.5.2 (B)
Cisco VPN 3000 Concentrator 2.5.2 (A)
Cisco VPN 3000 Concentrator 3.0 (Rel)
Cisco VPN 3000 Concentrator 3.0
Cisco VPN 3000 Concentrator 3.0.3 (B)
Cisco VPN 3000 Concentrator 3.0.3 (A)
Cisco VPN 3000 Concentrator 3.0.4
Cisco VPN 3000 Concentrator 3.1 (Rel)
Cisco VPN 3000 Concentrator 3.1.1
Cisco VPN 3000 Concentrator 3.1.2
Cisco VPN 3000 Concentrator 3.1.4
Cisco VPN 3000 Concentrator 3.5 (Rel)
Cisco VPN 3000 Concentrator 3.5.1
Cisco VPN 3000 Concentrator 3.5.2
Cisco VPN 3000 Concentrator 3.5.3
Cisco VPN 3002 Hardware Client
详细描述
Cisco VPN 3000 series concentrators是一系列通过VPN通信的产品。

在部分环境下,远程攻击者可能获得系统敏感信息,FTP banner可以泄露很多会话相关的信息,通过这些信息可以进一步都系统进行攻击。

测试代码


解决方案
升级固件:

Cisco VPN 3002 Hardware Client :
Cisco VPN 3000 Concentrator 2.0:
Cisco VPN 3000 Concentrator 2.5.2 (F):
Cisco VPN 3000 Concentrator 2.5.2 (D):
Cisco VPN 3000 Concentrator 2.5.2 (C):
Cisco VPN 3000 Concentrator 2.5.2 (B):
Cisco VPN 3000 Concentrator 2.5.2 (A):
Cisco VPN 3000 Concentrator 3.0 (Rel):
Cisco VPN 3000 Concentrator 3.0:
Cisco VPN 3000 Concentrator 3.0.3 (B):
Cisco VPN 3000 Concentrator 3.0.3 (A):
Cisco VPN 3000 Concentrator 3.0.4:
Cisco VPN 3000 Concentrator 3.1 (Rel):
Cisco VPN 3000 Concentrator 3.1.1:
Cisco VPN 3000 Concentrator 3.1.2:
Cisco VPN 3000 Concentrator 3.1.4:
Cisco VPN 3000 Concentrator 3.5 (Rel):

Cisco Upgrade VPN 3000 Concentrator 3.5.4
http://www.cisco.com/tac

Cisco VPN 3000 Concentrator 3.5.1:

Cisco Upgrade VPN 3000 Concentrator 3.5.4
http://www.cisco.com/tac

Cisco VPN 3000 Concentrator 3.5.2:

Cisco Upgrade VPN 3000 Concentrator 3.5.4
http://www.cisco.com/tac

Cisco VPN 3000 Concentrator 3.5.3:

Cisco Upgrade VPN 3000 Concentrator 3.5.4
http://www.cisco.com/tac

相关信息
Cisco Security Advisory.
参考:http://online.securityfocus.com/advisories/4446