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Category:   Device (Router/Bridge/Hub)  >   Cisco IOS Vendors:   Cisco
Cisco IOS XE AAA Bug Lets Remote Users Execute Arbitrary Code on the Target System
SecurityTracker Alert ID:  1041086
SecurityTracker URL:  http://securitytracker.com/id/1041086
CVE Reference:   CVE-2018-0315   (Links to External Site)
Date:  Jun 12 2018
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Cisco IOS XE. A remote user can execute arbitrary code on the target system.

A remote user can attempt to authenticate and send specially crafted username data to trigger a memory error in the authentication, authorization, and accounting (AAA) security services and execute arbitrary code on the target system.

AAA login authentication services on tty lines, including console port (CTY) lines, auxiliary (AUX) port lines, virtual terminal (VTY) lines, and asynchronous tty (TTY) lines, are affected.

Login authentication on the web user interface is not affected.

The vendor has assigned bug ID CSCvi25380 to this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-aaa

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180606-aaa (Links to External Site)
Cause:   Access control error

Message History:   None.


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