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Category:   Application (Web Server/CGI)  >   Apache Tomcat Vendors:   Apache Software Foundation
Apache Tomcat Missing Check in WebSocket Client Lets Remote Users Bypass Hostname Verification on the Target System
SecurityTracker Alert ID:  1041374
SecurityTracker URL:  http://securitytracker.com/id/1041374
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:   The vendor has issued a fix (7.0.90, 8.0.53, 8.5.32, 9.0.10).

The vendor advisories are available at:

https://tomcat.apache.org/security-7.html
https://tomcat.apache.org/security-8.html
https://tomcat.apache.org/security-9.html

Vendor URL:  tomcat.apache.org/security-9.html (Links to External Site)
Cause:   Authentication error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jul 26 2018 (Ubuntu Issues Fix) Apache Tomcat Missing Check in WebSocket Client Lets Remote Users Bypass Hostname Verification on the Target System
Ubuntu has issued a fix for Ubuntu Linux 14.04 LTS and 16.04 LTS.



 Source Message Contents



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