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Category:   Device (Firewall)  >   Cisco ASA Vendors:   Cisco
Cisco ASA Lets Remote Users Bypass the Per-User-Override Firewall Feature
SecurityTracker Alert ID:  1041788
SecurityTracker URL:
CVE Reference:   CVE-2018-15398   (Links to External Site)
Date:  Oct 3 2018
Impact:   Host/resource access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Cisco ASA. A remote user can bypass security controls on the target system.

A remote user can bypass the per-user-override feature configured on a specific interface of the target firewall.

The system must have at least one interface using the affected feature and must also have at least one remote access VPN connection profile or site-to-site VPN connection profile (tunnel-group) configured and associated with a group policy (group-policy) that specifies a filter ACL (vpn-filter) and must also have a VPN tunnel associated with an affected connection profile (tunnel-group) to be affected.

The vendor has assigned bug ID CSCvj91858 to this vulnerability.

Impact:   A remote user can bypass the firewall to access hosts or resources on the protected network.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

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

Message History:   None.

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Content previously copyright LLC placed in the public domain on December 31, 2019.