when format strings attack

Gabriel Genellina gagsl-py at yahoo.com.ar
Fri Jan 19 10:44:59 EST 2007


<Eric_Dexter at msn.com> escribió en el mensaje 
news:1169207467.989977.162940 at q2g2000cwa.googlegroups.com...

> http://www.ddj.com/184405774;jsessionid=BDDEMUGJOPXUMQSNDLQCKHSCJUNN2JVN
>
> I saw a warning from homeland security about this.  I only comment on
> the because I am trying to use os.system('command1 arg') and it doesn't
> work but I do see examples with % that is borrowed from the c language.
> Seems like if I can write a batch file that does something the same
> behavior should happen in the os module..

Pure Python programs are not affected, but a review of the C implementation 
should be made to see if any (variant of) printf is used without a proper 
format. Anyway I doubt you could find something, because the vulnerability 
is so well known for ages.

-- 
Gabriel Genellina 





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