CVE Catalog

CVE-2005-4499

High
Published: Translated: NVD NIST

Summary

The Downloadable RADIUS ACLs feature in Cisco PIX and VPN 3000 concentrators generates a random internal ACL name that is also used as a hidden username and password. An attacker can sniff this name from the cleartext portion of a RADIUS session and use the password to log in to another device using Cisco Secure Access Control Server (CS ACS).

Risk Assessment

The organization is at risk of unauthorized access to network devices, potentially leading to privilege escalation and network security breaches.

Recommendation

Update Cisco PIX and VPN 3000 software to a version that fixes this vulnerability, and consider encrypting RADIUS sessions using protocols such as RADIUS over IPsec.

Related vulnerabilities

Original NVD description (English source)

The Downloadable RADIUS ACLs feature in Cisco PIX and VPN 3000 concentrators, when creating an ACL on the Cisco Secure Access Control Server (CS ACS), generates a random internal name for an ACL that is also used as a hidden user name and password, which allows remote attackers to gain privileges by sniffing the username from the cleartext portion of a RADIUS session, then using the password to log in to another device that uses CS ACS.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS