VAR-200205-0038

Vulnerability from variot - Updated: 2025-04-03 22:40

NDSAuth.DLL in Cisco Secure Authentication Control Server (ACS) 3.0.1 does not check the Expired or Disabled state of users in the Novell Directory Services (NDS), which could allow those users to authenticate to the server. Cisco Secure ACS is a highly scalable, high-performance access control server that runs on Windows NT/2000 operating systems and Unix variants. It operates as a centralized Remote Access Dial-In User Service (RADIUS) or TACACS+ server system and controls the authentication of users accessing resources through the network. An expired or disabled user who authenticates with the correct credentials will still be able to access the service. The normal, expected behavior is that their access to the service will be denied. It should be noted that only Cisco Secure ACS 3.01 for Windows NT is prone to this issue. The vulnerability is caused by the \"NDSAuth.DLL\" file, this module allows ACS authentication via an external NDS server. < Link: http://www.cisco.com/warp/public/707/ciscosecure-acs-nds-authentication-vuln-pub.shtml >

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