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A vulnerability in the RADIUS authentication module of Cisco Policy Suite could allow an unauthenticated, remote attacker to determine whether a subscriber username is valid. The vulnerability occurs because the Cisco Policy Suite RADIUS server component returns different authentication failure messages based on the validity of usernames. An attacker could use these messages to determine whether a valid subscriber username has been identified. The attacker could use this information in subsequent attacks against the system. Cisco Bug IDs: CSCvg47830.

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信息暴露

Cisco Policy Suite RADIUS身份验证模块信息泄露漏洞

Cisco Policy Suite（CPS）是美国思科（Cisco）公司的一套下一代策略管理解决方案。该方案提供了基于用户的业务规则、应用程序和网络资源的实时管理等功能。RADIUS authentication module是其中的一个RADIUS协议认证模块。 Cisco Policy Suite中的RADIUS身份验证模块存在信息泄露漏洞，该漏洞源于程序根据不同的用户名返回不同的身份验证失败消息。远程攻击者可利用该漏洞确定订阅的用户名是否存在。

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