ESB-2018.1630 - [Ubuntu] tomcat: Multiple vulnerabilities 2018-05-31

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1630
                          Tomcat vulnerabilities
                                31 May 2018

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

Product:           tomcat
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Access Confidential Data        -- Remote/Unauthenticated
                   Unauthorised Access             -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-8014 CVE-2018-1305 CVE-2018-1304
                   CVE-2017-15706 CVE-2017-12617 CVE-2017-12616

Reference:         ESB-2018.1509
                   ESB-2018.1488
                   ESB-2018.0652
                   ESB-2018.0542

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3665-1

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USN-3665-1: Tomcat vulnerabilities

30 May 2018

tomcat7, tomcat8 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  o Ubuntu 18.04 LTS
  o Ubuntu 17.10
  o Ubuntu 16.04 LTS
  o Ubuntu 14.04 LTS

Summary

Several security issues were fixed in Tomcat.

Software Description

  o tomcat8 - Servlet and JSP engine
  o tomcat7 - Servlet and JSP engine

Details

It was discovered that Tomcat incorrectly handled being configured with HTTP
PUTs enabled. A remote attacker could use this issue to upload a JSP file to
the server and execute arbitrary code. This issue only affected Ubuntu 14.04
LTS, Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2017-12616, CVE-2017-12617)

It was discovered that Tomcat contained incorrect documentation regarding
description of the search algorithm used by the CGI Servlet to identify which
script to execute. This issue only affected Ubuntu 17.10. (CVE-2017-15706)

It was discovered that Tomcat incorrectly handled en empty string URL pattern
in security constraint definitions. A remote attacker could possibly use this
issue to gain access to web application resources, contrary to expectations.
This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 17.10.
(CVE-2018-1304)

It was discovered that Tomcat incorrectly handled applying certain security
constraints. A remote attacker could possibly access certain resources,
contrary to expectations. This issue only affected Ubuntu 14.04 LTS, Ubuntu
16.04 LTS and Ubuntu 17.10. (CVE-2018-1305)

It was discovered that the Tomcat CORS filter default settings were insecure
and would enable 'supportsCredentials' for all origins, contrary to
expectations. (CVE-2018-8014)

Update instructions

The problem can be corrected by updating your system to the following package
versions:

Ubuntu 18.04 LTS
    libtomcat8-java - 8.5.30-1ubuntu1.2
    tomcat8 - 8.5.30-1ubuntu1.2
Ubuntu 17.10
    libtomcat8-java - 8.5.21-1ubuntu1.1
    tomcat8 - 8.5.21-1ubuntu1.1
Ubuntu 16.04 LTS
    libtomcat8-java - 8.0.32-1ubuntu1.6
    tomcat8 - 8.0.32-1ubuntu1.6
Ubuntu 14.04 LTS
    libtomcat7-java - 7.0.52-1ubuntu0.14
    tomcat7 - 7.0.52-1ubuntu0.14

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References

  o https://usn.ubuntu.com/usn/usn-3665-1
  o CVE-2017-12616
  o CVE-2017-12617
  o CVE-2017-15706
  o CVE-2018-1304
  o CVE-2018-1305
  o CVE-2018-8014

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