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About eMule web server "Buffer Overflow" discovered vulnerability


From: "Lorenzo Hernandez Garcia-Hierro" <lorenzohgh () nsrg-security com>
Date: Fri, 24 Oct 2003 16:12:59 +0200

Hi again,
Umm , i've read in the website of my friend , 3APA3A , ( security.nnov.ru )
a person discovered a supposed "Buffer Overflow" in the eMule
webserver used for remote administration.
It is not a Buffer Overflow , you don't corrupt the stack and then insert
data to gain shell access or similar
and definately it is not a non-remote exploitable buffer oveflow,
it is only a typical Denial of Service attack against an incorrect data
handler with the only protection of the user side.
So , if you read one of my past advisories you can see my advisory about
Sambar Server search.pl Buffer Overflow,
it was wrong too xD , i was confused but long time passed since that
advisory.
Its common to confuse the DoS attacks and Buffer Overflows.
NOTE: the search.pl script of sambar had the same problem , an incorrect
input data handler that allowed to make DoS attacks against
the sambar webserver and the perl executable ( i wrote Buffer Overflow due
to this , i didn't know if the perl executable could allow to
corrupt the stack or similar ), so it was only a DoS , simple and easy.

Best regards to all,
PS: can somebody tell me about the l0l experssion ? is it laughting on the
loud ? xD a stupid question i know !
-------------------------------
0x00->Lorenzo Hernandez Garcia-Hierro
0x01->/* not csh but sh */
0x02->$ PATH=pretending!/usr/ucb/which sense
0x03-> no sense in pretending!
__________________________________
PGP: Keyfingerprint
4ACC D892 05F9 74F1 F453  7D62 6B4E B53E 9180 5F5B
ID: 0x91805F5B
**********************************
No Secure Root Group Security Research Team
http://www.nsrg-security.com
______________________


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