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Category:   Device (Router/Bridge/Hub)  >   Cisco IOS Vendors:   Cisco
Cisco IOS/IOS XE ntp Flaw Lets Remote Users Modify the Time
SecurityTracker Alert ID:  1035622
SecurityTracker URL:
CVE Reference:   CVE-2016-1384   (Links to External Site)
Date:  Apr 20 2016
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): IOS 15.5(3)M01 and prior; IOS XE 3.2.0 to 3.18.0S
Description:   A vulnerability was reported in Cisco IOS and IOS XE. A remote user can modify the time on the target system.

A remote user can send specially crafted ntp packets to the target device to bypass authorization checks on certain packets and mobilize an ephemeral association to modify the time on the target device.

The vendor has assigned bug ID CSCux46898 to this vulnerability.

Impact:   A remote user can modify the time on the target device.
Solution:   The vendor has issued a fix.

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Access control error

Message History:   None.

 Source Message Contents

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