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Cisco VPN Concentrator SSH Banner可导致设备信息泄露


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:设计错误
利用方式:服务器模式

BUGTRAQ ID:5621

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进行安全通信的产品。

在部分环境下,可能导致远程用户访问敏感信息,SSH BANNER信息会泄露涉及会话先观的信息,通过收集这些信息,可以对网络进一步攻击。

测试代码


解决方案
联系供应商固件升级:

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:
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