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Category:   Device (Firewall)  >   Cisco ASA Vendors:   Cisco
Cisco ASA 5500-X Series with FirePOWER Services Lets Remote Users Cause the Target Snort Service to Restart
SecurityTracker Alert ID:  1037061
SecurityTracker URL:
CVE Reference:   CVE-2016-6439   (Links to External Site)
Date:  Oct 19 2016
Impact:   Denial of service via network, Host/resource access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5500-X Series with FirePOWER Services;, 6.0,
Description:   A vulnerability was reported in Cisco ASA. A remote user can cause the target service to restart. A remote user can bypass Snort detection.

A remote user can send specially crafted data to cause the target Snort process to restart. This can be exploited to bypass Snort detection while the process is restarting.

5500-X Series ASA devices with FirePOWER Services are affected if the ASA release supports the command-line interface (CLI) command 'sfr fail-open' and that command is configured.

The vendor has assigned bug ID CSCux61630 to this vulnerability.

Impact:   A remote user can cause the target Snort service to restart, bypassing Snort detection while the service restarts.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

Vendor URL: (Links to External Site)
Cause:   State error

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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