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Category:   Application (Web Server/CGI)  >   Apache Tomcat Vendors:   Apache Software Foundation
Apache Tomcat Application Listener Facade Object Error Lets Remote Users Modify Data on the Target System
SecurityTracker Alert ID:  1038220
SecurityTracker URL:  http://securitytracker.com/id/1038220
CVE Reference:   CVE-2017-5648   (Links to External Site)
Date:  Apr 11 2017
Impact:   Disclosure of system information, Disclosure of user information, Modification of system information, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7.0.0 to 7.0.75, 8.0.0.RC1 to 8.0.41, 8.5.0 to 8.5.11, 9.0.0.M1 to 9.0.0.M17
Description:   A vulnerability was reported in Apache Tomcat. A remote user can access and modify data on the target system.

Some application listener calls do not use the appropriate facade object. An untrusted application running under a SecurityManager can retain a reference to the call or response object and access or modify data associated with a different application.

Impact:   A remote user can access and modify data on the target system.
Solution:   The vendor has issued a fix (7.0.76, 8.0.42, 8.5.12, 9.0.0.M18).

The vendor advisories are available at:

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

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

Message History:   None.


 Source Message Contents

Date:  Mon, 10 Apr 2017 20:14:59 +0100
Subject:  [SECURITY] CVE-2017-5648 Apache Tomcat Information Disclosure

CVE-2017-5648 Apache Tomcat Information Disclosure

Severity: Low

Vendor: The Apache Software Foundation

Versions Affected:
Apache Tomcat 9.0.0.M1 to 9.0.0.M17
Apache Tomcat 8.5.0 to 8.5.11
Apache Tomcat 8.0.0.RC1 to 8.0.41
Apache Tomcat 7.0.0 to 7.0.75
Apache Tomcat 6.0.x is not affected

Description
While investigating bug 60718, it was noticed that some calls to
application listeners did not use the appropriate facade object. When
running an untrusted application under a SecurityManager, it was
therefore possible for that untrusted application to retain a reference
to the request or response object and thereby access and/or modify
information associated with another web application.

Mitigation:
Users of the affected versions should apply one of the following
mitigations:
- Upgrade to Apache Tomcat 9.0.0.M18 or later
- Upgrade to Apache Tomcat 8.5.12 or later
- Upgrade to Apache Tomcat 8.0.42 or later
- Upgrade to Apache Tomcat 7.0.76 or later

Credit:
This issue was identified by the Tomcat security team.

History:
2017-04-10 Original advisory

References:
[1] https://bz.apache.org/bugzilla/show_bug.cgi?id=60718
[2] http://tomcat.apache.org/security-9.html
[3] http://tomcat.apache.org/security-8.html
[4] http://tomcat.apache.org/security-7.html

 
 


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