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Re: Administrivia: List Compromised due to Mailman Vulnerability
From: Steve Blass <sblass () asu edu>
Date: Wed, 09 Feb 2005 12:45:19 -0700

John Cartwright wrote:


Subscriber addresses and passwords have been compromised.



SLASH = '/'

def true_path(path):
   "Ensure that the path is safe by removing .."
   parts = [x for x in path.split(SLASH) if x not in ('.', '..')]
   return SLASH.join(parts)[1:]

That's an improvement, but better is to extract and validate the tail of the path to your repository and then anchor the root where it belongs.

Fully disclosing that FD was compromised was a stand up thing to do though. Good job!


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