full-disclosure - QNX 4.25 suided dhcp.client binary

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Date: Sat Dec  3 19:14:56 2005
From: lms at fe.up.pt (lms@...up.pt)
Subject: QNX 4.25 suided dhcp.client binary

Hello all,

I recently got a QNX 4.25 vmware image and i found that the dhcp.client shipped
with it is suided.

This obviously enables a normal user to control the NIC's configuration and
produce some other attacks (eg: if the system has some services which depend on
'host/ip based' authentication [NFS,NIS,rlogin, etc]).

Some vmware screenshots are available at:
http://lms.ispgaya.pt/goodies/qnx/

I havent got access to other QNX installations so, allthough the person who gave
me the image said the binary wasnt changed, can anybody else confirm this?

Best regards,
+---------------------------------
| Lu?s Miguel Ferreira da Silva
| Unidade de Qualidade e Seguran?a
| Centro de Inform?tica
| Professor Correia Ara?jo
| Faculdade de Engenharia da
| Universidade do Porto
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