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Category:   Device (Router/Bridge/Hub)  >   Cisco IOS Vendors:   Cisco
Cisco IOS Bug in Authentication Proxy May Let Remote Users Bypass Authentication
SecurityTracker Alert ID:  1031817
SecurityTracker URL:  http://securitytracker.com/id/1031817
CVE Reference:   CVE-2015-0607   (Links to External Site)
Updated:  Mar 10 2015
Original Entry Date:  Feb 27 2015
Impact:   Host/resource access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Cisco IOS. A remote user can bypass authentication on the target authentication proxy.

The Authentication Proxy feature does not properly process unsupported AAA return codes. A remote user can send an empty password to attempt to cause the target Authentication Proxy to fail in the case where the AAA server returns a code that is not supported by the Authentication Proxy.

The vendor has assigned bug IDs CSCuo09400 and CSCun16016 to this vulnerability.

Impact:   A remote user can bypass authentication on the target authentication proxy.
Solution:   The vendor has issued a fix.

The vendor's advisory is available at:

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

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2015-0607 (Links to External Site)
Cause:   Authentication error

Message History:   None.


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