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From "Stefan Bodewig (Jira)" <j...@apache.org>
Subject [jira] [Updated] (COMPRESS-495) Zip Slip in SevenZ CLI
Date Tue, 08 Oct 2019 12:00:00 GMT

     [ https://issues.apache.org/jira/browse/COMPRESS-495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Stefan Bodewig updated COMPRESS-495:
------------------------------------
    Fix Version/s: 1.20

> Zip Slip in SevenZ CLI
> ----------------------
>
>                 Key: COMPRESS-495
>                 URL: https://issues.apache.org/jira/browse/COMPRESS-495
>             Project: Commons Compress
>          Issue Type: Bug
>          Components: Archivers
>            Reporter: Gabor Molnar
>            Priority: Major
>             Fix For: 1.20
>
>
> The SevenZ decompressor doesn't check that the file to be extracted is escaping the current
directory or not.
> Vulnerable code: [https://github.com/apache/commons-compress/blob/26b78cecfc1ca0e5daf03109b2c441f960bde678/src/main/java/org/apache/commons/compress/archivers/sevenz/CLI.java#L67]
> In another place in the repository, there is a safe implementation that was added as
an example when the Zip Slip vulnerability was originally published: https://github.com/apache/commons-compress/blob/1a14a23a05f7104e3d41a25a0f7e78ae1556285e/src/main/java/org/apache/commons/compress/archivers/examples/Expander.java#L308



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