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Category:   Application (Web Server/CGI)  >   Apache Tomcat Vendors:   Apache Software Foundation
(Ubuntu Issues Fix) Apache Tomcat Missing Check in WebSocket Client Lets Remote Users Bypass Hostname Verification on the Target System
SecurityTracker Alert ID:  1041379
SecurityTracker URL:  http://securitytracker.com/id/1041379
CVE Reference:   CVE-2018-8034   (Links to External Site)
Date:  Jul 26 2018
Impact:   Host/resource access via network, Modification of system information, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7.0.25 to 7.0.88, 8.0.0.RC1 to 8.0.52, 8.5.0 to 8.5.31, 9.0.0.M1 to 9.0.9
Description:   A vulnerability was reported in Apache Tomcat. A remote user can bypass security controls on the target system.

A remote user can exploit a flaw in the WebSocket client for TLS connections to bypass host name verification.

Impact:   A remote user can bypass host name verification for TLS connections.
Solution:   Ubuntu has issued a fix.

The Ubuntu advisory is available at:

https://usn.ubuntu.com/usn/usn-3723-1

Vendor URL:  usn.ubuntu.com/usn/usn-3723-1 (Links to External Site)
Cause:   Authentication error
Underlying OS:  Linux (Ubuntu)
Underlying OS Comments:  14.04 LTS, 16.04 LTS

Message History:   This archive entry is a follow-up to the message listed below.
Jul 26 2018 Apache Tomcat Missing Check in WebSocket Client Lets Remote Users Bypass Hostname Verification on the Target System



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