medium
5.5
CWE
200
Advisory Published
Advisory Published
Updated

CVE-2023-43123: Apache Storm: Local Information Disclosure Vulnerability in Storm-core on Unix-Like systems due temporary files

First published: Thu Nov 23 2023(Updated: )

On unix-like systems, the temporary directory is shared between all user. As such, writing to this directory using APIs that do not explicitly set the file/directory permissions can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems. The method File.createTempFile on unix-like systems creates a file with predefined name (so easily identifiable) and by default will create this file with the permissions -rw-r--r--. Thus, if sensitive information is written to this file, other local users can read this information. File.createTempFile(String, String) will create a temporary file in the system temporary directory if the 'java.io.tmpdir' system property is not explicitly set. This affects the class  https://github.com/apache/storm/blob/master/storm-core/src/jvm/org/apache/storm/utils/TopologySpoutLag.java#L99  and was introduced by  https://issues.apache.org/jira/browse/STORM-3123 In practice, this has a very limited impact as this class is used only if ui.disable.spout.lag.monitoring is set to false, but its value is true by default. Moreover, the temporary file gets deleted soon after its creation. The solution is to use  Files.createTempFile https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/nio/file/Files.html#createTempFile(java.lang.String,java.lang.String,java.nio.file.attribute.FileAttribute...)  instead. We recommend that all users upgrade to the latest version of Apache Storm.

Credit: security@apache.org security@apache.org

Affected SoftwareAffected VersionHow to fix
maven/org.apache.storm:storm-core>=2.0.0<2.6.0
2.6.0
Apache Storm>=2.0.0<2.6.0

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2023-43123.

  • What is the title of the vulnerability?

    The title of the vulnerability is 'Apache Storm: Local Information Disclosure Vulnerability in Storm-core on Unix-Like systems.'

  • What is the impact of this vulnerability?

    The vulnerability can lead to information disclosure on Unix-Like systems.

  • Does this vulnerability affect modern MacOS Operating Systems?

    No, this vulnerability does not impact modern MacOS Operating Systems.

  • What is the affected software?

    The affected software is Apache Storm with version 2.0.0 up to and including 2.6.0.

  • How can I fix this vulnerability?

    To fix this vulnerability, upgrade to Apache Storm version 2.6.0 or apply the appropriate remedy.

  • Where can I find more information about this vulnerability?

    You can find more information about this vulnerability at the following references: [reference1](https://lists.apache.org/thread/88oc1vqfjtr29cz5xts0v2wm5pmhbm0l), [reference2](https://nvd.nist.gov/vuln/detail/CVE-2023-43123), [reference3](http://www.openwall.com/lists/oss-security/2023/11/23/1).

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