ESB-2017.2017 - [Win][UNIX/Linux] Apache Tomcat: Multiple vulnerabilities 2017-08-14

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2017
  [SECURITY] Apache Tomcat Cache Poisoning and Security Constraint Bypass
                              14 August 2017

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Apache Tomcat
Publisher:         Apache
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Provide Misleading Information -- Remote with User Interaction
                   Unauthorised Access            -- Remote/Unauthenticated      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-7675 CVE-2017-7674 

Original Bulletin: 
   https://bz.apache.org/bugzilla/show_bug.cgi?id=61101
   https://bz.apache.org/bugzilla/show_bug.cgi?id=61120

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Apache. It is recommended that administrators 
         running Apache Tomcat check for an updated version of the software 
         for their operating system.
         
         This bulletin contains two (2) Apache security advisories.

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CVE-2017-7674 Apache Tomcat Cache Poisoning

Severity: Moderate

Vendor: The Apache Software Foundation

Versions Affected:
Apache Tomcat 9.0.0.M1 to 9.0.0.M21
Apache Tomcat 8.5.0 to 8.5.15
Apache Tomcat 8.0.0.RC1 to 8.0.44
Apache Tomcat 7.0.41 to 7.0.78

Description:
The CORS Filter did not an HTTP Vary header indicating that the response
varies depending on Origin. This permitted client and server side cache
poisoning in some circumstances.

Mitigation:
Users of the affected versions should apply one of the following
mitigations:
- - Upgrade to Apache Tomcat 9.0.0.M22 or later
- - Upgrade to Apache Tomcat 8.5.16 or later
- - Upgrade to Apache Tomcat 8.0.45 or later
- - Upgrade to Apache Tomcat 7.0.79 or later

Credit:
The issue was reported as Bug 61101 and the security implications
identified by the Apache Tomcat Security Team.

History:
2017-08-10 Original advisory

References:
[1] http://tomcat.apache.org/security-9.html
[2] http://tomcat.apache.org/security-8.html
[3] http://tomcat.apache.org/security-7.html
[4] https://bz.apache.org/bugzilla/show_bug.cgi?id=61101

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CVE-2017-7675 Apache Tomcat Cache Poisoning

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected:
Apache Tomcat 9.0.0.M1 to 9.0.0.M21
Apache Tomcat 8.5.0 to 8.5.15

Description:
The HTTP/2 implementation bypassed a number of security checks that
prevented directory traversal attacks. It was therefore possible to
bypass security constraints using an specially crafted URL.

Mitigation:
Users of the affected versions should apply one of the following
mitigations:
- - Upgrade to Apache Tomcat 9.0.0.M22 or later
- - Upgrade to Apache Tomcat 8.5.16 or later

Credit:
The issue was reported as Bug 61120 and the security implications
identified by the Apache Tomcat Security Team.

History:
2017-08-10 Original advisory

References:
[1] http://tomcat.apache.org/security-9.html
[2] http://tomcat.apache.org/security-8.html
[3] http://tomcat.apache.org/security-7.html
[4] https://bz.apache.org/bugzilla/show_bug.cgi?id=61120

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