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Safe use of eval() or alternatives - python


Safe use of eval() or alternatives - python

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Safe use of eval() or alternatives - python
Tag : python , By : suresh
Date : November 24 2020, 05:44 AM


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Python: make eval safe


Tag : python , By : kokok13
Date : March 29 2020, 07:55 AM
help you fix your problem
are eval's security issues fixable or are there just too many tiny details to get it working right?

Is this a safe use of python eval()?


Tag : python , By : kbrust
Date : March 29 2020, 07:55 AM
seems to work fine If an attacker can control the value of attacker_controlled_nasty_variable, is this segment of code vulnerable? , Use ast.literal_eval() instead of eval().

Is using eval() for data from ONLY server-side safe? (and if not, alternatives please)


Tag : javascript , By : toma
Date : March 29 2020, 07:55 AM
hop of those help? Safe, yes, assuming your server is secure. Generally the only time you want to truly avoid using eval() is when users are able to add code which other users can see. Like you'd never ever want to use eval() when displaying a forum post, etc. If the code is coming from your server, or if the user's input is only being displayed back to himself/herself, eval() is fine. This is essentially what jsfiddle does.

Is this eval() in python safe?


Tag : python , By : user112141
Date : March 29 2020, 07:55 AM
this will help Since the strings passed to eval are constant, with nothing substituted into them, this code is safe. However, it's also a pointless deviation from best practices: There's no legitimate reason to use eval here at all.
Assuming that you want to be able to do operations other than re.sub(), one approach is to use lambdas:
from re import sub

input = request.POST['input']
sub_pattern = {'1': lambda input: sub('pattern1','txt1',input),
               '2': lambda input: sub('pattern2','txt2',input)}
sub_pattern['1'](input)

Using ast and whitelists to make python's eval() safe?


Tag : python , By : Frank
Date : March 29 2020, 07:55 AM
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