Description
Cisco VPN 5000 series concentrator hardware 6.0.21.0002 and earlier, and 5.2.23.0003 and earlier, when using RADIUS with a challenge type of Password Authentication Protocol (PAP) or Challenge, sends the user password in cleartext in a validation retry request, which could allow remote attackers to steal passwords via sniffing.
References
- 20020807 Cisco VPN 5000 Series Concentrator RADIUS PAP Authentication Vulnerability vendor-advisory
- cisco-vpn5000-plaintext-password(9781) vdb-entry
- 5417 vdb-entry