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QNX DHCP Client Privilege Escalation
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SUMMARY
<http://www.qnx.com/> QNX is "a commercial POSIX-compliant Unix-like
real-time operating system, aimed primarily at the embedded systems
market".
A vulnerability in the QNX system allows local users to can change NIC
configuration without requiring root privileges.
DETAILS
Vulnerable Systems:
* QNX version 4.25
The dhcp.client program shipped with QNX 4.25 is setuid root.
This obviously enables a normal user to control the NIC's configuration
and produce some other attacks such as if the system has some services
which depend on 'host/ip based' authentication, for example: NFS, NIS,
rlogin, etc.
Some screenshots of QNX running under VMWare are available at:
<http://lms.ispgaya.pt/goodies/qnx/> http://lms.ispgaya.pt/goodies/qnx/
ADDITIONAL INFORMATION
The information has been provided by <mailto:lms@fe.up.pt> Lu s Miguel
Ferreira da Silva.
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