Path Equivalence: 'file.Name' (Internal Dot) leading to Remote Code Execution and/or Information disclosure and/or malicious content added to uploaded files via write enabled Default Servlet in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.2, from 10.1.0-M1 through 10.1.34, from 9.0.0.M1 through 9.0.98. If all of the following were true, a malicious user was able to view security sensitive files and/or inject content into those files: - writes enabled for the default servlet (disabled by default) - support for partial PUT (enabled by default) - a target URL for security sensitive uploads that was a sub-directory of a target URL for public uploads - attacker knowledge of the names of security sensitive files being uploaded - the security sensitive files also being uploaded via partial PUT If all of the following were true, a malicious user was able to perform remote code execution: - writes enabled for the default servlet (disabled by default) - support for partial PUT (enabled by default) - application was using Tomcat's file based session persistence with the default storage location - application included a library that may be leveraged in a deserialization attack Users are recommended to upgrade to version 11.0.3, 10.1.35 or 9.0.99, which fixes the issue.
{ "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.0.39-1ubuntu0.1+esm2", "binary_name": "libservlet2.4-java" }, { "binary_version": "6.0.39-1ubuntu0.1+esm2", "binary_name": "libservlet2.5-java" }, { "binary_version": "6.0.39-1ubuntu0.1+esm2", "binary_name": "libservlet2.5-java-doc" }, { "binary_version": "6.0.39-1ubuntu0.1+esm2", "binary_name": "libtomcat6-java" }, { "binary_version": "6.0.39-1ubuntu0.1+esm2", "binary_name": "tomcat6" }, { "binary_version": "6.0.39-1ubuntu0.1+esm2", "binary_name": "tomcat6-admin" }, { "binary_version": "6.0.39-1ubuntu0.1+esm2", "binary_name": "tomcat6-common" }, { "binary_version": "6.0.39-1ubuntu0.1+esm2", "binary_name": "tomcat6-docs" }, { "binary_version": "6.0.39-1ubuntu0.1+esm2", "binary_name": "tomcat6-examples" }, { "binary_version": "6.0.39-1ubuntu0.1+esm2", "binary_name": "tomcat6-extras" }, { "binary_version": "6.0.39-1ubuntu0.1+esm2", "binary_name": "tomcat6-user" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "8.0.32-1ubuntu1.13+esm1", "binary_name": "libservlet3.1-java" }, { "binary_version": "8.0.32-1ubuntu1.13+esm1", "binary_name": "libservlet3.1-java-doc" }, { "binary_version": "8.0.32-1ubuntu1.13+esm1", "binary_name": "libtomcat8-java" }, { "binary_version": "8.0.32-1ubuntu1.13+esm1", "binary_name": "tomcat8" }, { "binary_version": "8.0.32-1ubuntu1.13+esm1", "binary_name": "tomcat8-admin" }, { "binary_version": "8.0.32-1ubuntu1.13+esm1", "binary_name": "tomcat8-common" }, { "binary_version": "8.0.32-1ubuntu1.13+esm1", "binary_name": "tomcat8-docs" }, { "binary_version": "8.0.32-1ubuntu1.13+esm1", "binary_name": "tomcat8-examples" }, { "binary_version": "8.0.32-1ubuntu1.13+esm1", "binary_name": "tomcat8-user" } ] }
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "7.0.68-1ubuntu0.4+esm3", "binary_name": "libservlet3.0-java" }, { "binary_version": "7.0.68-1ubuntu0.4+esm3", "binary_name": "libservlet3.0-java-doc" }, { "binary_version": "7.0.68-1ubuntu0.4+esm3", "binary_name": "libtomcat7-java" }, { "binary_version": "7.0.68-1ubuntu0.4+esm3", "binary_name": "tomcat7" }, { "binary_version": "7.0.68-1ubuntu0.4+esm3", "binary_name": "tomcat7-admin" }, { "binary_version": "7.0.68-1ubuntu0.4+esm3", "binary_name": "tomcat7-common" }, { "binary_version": "7.0.68-1ubuntu0.4+esm3", "binary_name": "tomcat7-docs" }, { "binary_version": "7.0.68-1ubuntu0.4+esm3", "binary_name": "tomcat7-examples" }, { "binary_version": "7.0.68-1ubuntu0.4+esm3", "binary_name": "tomcat7-user" } ] }
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "7.0.78-1ubuntu0.1~esm1", "binary_name": "libservlet3.0-java" }, { "binary_version": "7.0.78-1ubuntu0.1~esm1", "binary_name": "libservlet3.0-java-doc" } ] }
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "8.5.39-1ubuntu1~18.04.3+esm3", "binary_name": "libtomcat8-embed-java" }, { "binary_version": "8.5.39-1ubuntu1~18.04.3+esm3", "binary_name": "libtomcat8-java" }, { "binary_version": "8.5.39-1ubuntu1~18.04.3+esm3", "binary_name": "tomcat8" }, { "binary_version": "8.5.39-1ubuntu1~18.04.3+esm3", "binary_name": "tomcat8-admin" }, { "binary_version": "8.5.39-1ubuntu1~18.04.3+esm3", "binary_name": "tomcat8-common" }, { "binary_version": "8.5.39-1ubuntu1~18.04.3+esm3", "binary_name": "tomcat8-docs" }, { "binary_version": "8.5.39-1ubuntu1~18.04.3+esm3", "binary_name": "tomcat8-examples" }, { "binary_version": "8.5.39-1ubuntu1~18.04.3+esm3", "binary_name": "tomcat8-user" } ] }