CVE-2015-0607

critical

Description

The Authentication Proxy feature in Cisco IOS does not properly handle invalid AAA return codes from RADIUS and TACACS+ servers, which allows remote attackers to bypass authentication in opportunistic circumstances via a connection attempt that triggers an invalid code, as demonstrated by a connection attempt with a blank password, aka Bug IDs CSCuo09400 and CSCun16016.

References

http://www.securitytracker.com/id/1031817

http://www.securityfocus.com/bid/72794

http://tools.cisco.com/security/center/viewAlert.x?alertId=37711

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2015-0607

Details

Source: Mitre, NVD

Published: 2015-03-06

Updated: 2026-05-06

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00301