Symlink Attack Affecting Open this link in a new tab package, versions >=1.3.0 <1.7.14 >=1.8.0 <1.8.9 >=1.9.0 <1.9.4

  • Attack Complexity


  • Availability


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  • snyk-id


  • published

    17 May 2022

  • disclosed

    17 May 2022

  • credit

    Joel Smith of Red Hat

How to fix?

Upgrade to version 1.7.14, 1.8.9, 1.9.4 or higher.

Overview is a package that is part of Kubernetes.

Affected versions of this package are vulnerable to Symlink Attack due to a symlink race. Every synchronization iteration, the Atomic Writer is looking for files that shouldn't be in a volume, and when it finds it is added to a list. When the search is done it deletes the files in the list. Because the deletion doesn't occur during the finding of the file, a malicious container can set up conditions to change the file selected for deletion with a symlink leading to a different file, which will be deleted.