Re: [Full-Disclosure] Administrivia: List Compromised due to Mailman Vulnerability

[Steve Blass]

John Cartwright wrote:
...
Subscriber addresses and passwords have been compromised.
d'0h!
...
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!

-
Steve
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