What’s Vulnerable › Vulnerabilities

CVE-2005-4499

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2005-12-22 · updated 2026-06-16

Description

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.

Affected products

• Cisco ASA Software: 7.0, 7.0(4), 7.0.1.4, 7.0.4.3
• Cisco Pix Asa Ids: all versions
• Cisco Pix Firewall: 6.2.2_.111, 6.2.3_(110), 6.3.3_(133)
• Cisco Pix Firewall 501: all versions
• Cisco Pix Firewall 506: all versions
• Cisco Pix Firewall 515: all versions
• Cisco Pix Firewall 515E: all versions
• Cisco Pix Firewall 520: all versions
• Cisco Pix Firewall 525: all versions
• Cisco Pix Firewall 535: all versions
• Cisco Pix Firewall Software: 2.7, 3.0, 3.1, 4.0, 4.1(6), 4.1(6b) (+51)
• Cisco Secure Access Control Server: 2.0, 2.1, 2.3, 2.3.5.1, 2.3.6.1, 2.4 (+22)
• Cisco Vpn 3000 Concentrator Series Software: 2.0, 2.5.2.a, 2.5.2.b, 2.5.2.c, 2.5.2.d, 2.5.2.f (+35)
• Cisco Vpn 3001 Concentrator: all versions
• Cisco Vpn 3002 Hardware Client: all versions
• Cisco Vpn 3005 Concentrator Software: 4.0.1
• Cisco Vpn 3015 Concentrator: all versions
• Cisco Vpn 3020 Concentrator: all versions
• Cisco Vpn 3030 Concentator: 4.7.1, 4.7.1.f
• Cisco Vpn 3060 Concentrator: all versions
• Cisco Vpn 3080 Concentrator: all versions

References

• http://secunia.com/advisories/18141
• http://www.cisco.com/en/US/products/sw/secursw/ps2086/products_field_notice09186a00805bf1c4.shtml
• http://www.osvdb.org/22193
• http://www.securityfocus.com/archive/1/420020/100/0/threaded
• http://www.securityfocus.com/archive/1/420103/100/0/threaded
• http://www.securityfocus.com/bid/16025
• http://secunia.com/advisories/18141
• http://www.cisco.com/en/US/products/sw/secursw/ps2086/products_field_notice09186a00805bf1c4.shtml
• http://www.osvdb.org/22193
• http://www.securityfocus.com/archive/1/420020/100/0/threaded
• http://www.securityfocus.com/archive/1/420103/100/0/threaded
• http://www.securityfocus.com/bid/16025

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