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Posted to issues@commons.apache.org by "Sebb (JIRA)" <ji...@apache.org> on 2019/06/16 23:02:00 UTC

[jira] [Commented] (NET-670) Apache Commons Net ftpClient.java changeWorkingDirectory() Function CRLF Injection Remote Command Execution

    [ https://issues.apache.org/jira/browse/NET-670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16865195#comment-16865195 ] 

Sebb commented on NET-670:
--------------------------

NET is intended as a low-level interface to various internet protocols.

The caller application must validate user input before calling NET methods.

> Apache Commons Net ftpClient.java changeWorkingDirectory() Function CRLF Injection Remote Command Execution
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: NET-670
>                 URL: https://issues.apache.org/jira/browse/NET-670
>             Project: Commons Net
>          Issue Type: Bug
>          Components: FTP
>    Affects Versions: 3.6
>            Reporter: David Hurst
>            Priority: Critical
>              Labels: patch
>             Fix For: 3.7
>
>
> Per BlackDuck Hub VulnDB 171100
> Apache Commons Net contains a flaw in the changeWorkingDirectory() function in ftpClient.java that is triggered as user-supplied input is not properly sanitized. This may allow a remote attacker to use a newline character in a specially crafted string to execute arbitrary commands.
>  
>  



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