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BugTraq
COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Aug 14 2007 03:17PM Wojciech Purczynski (cliph isec pl) (2 replies) Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Aug 14 2007 06:20PM Dan Yefimov (dan ns15 lightwave net ru) (2 replies) Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Aug 15 2007 03:23PM Glynn Clements (glynn gclements plus com) (1 replies) Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Aug 15 2007 05:54PM Dan Yefimov (dan ns15 lightwave net ru) (1 replies) Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Aug 16 2007 01:18AM Glynn Clements (glynn gclements plus com) Re: COSEINC Linux Advisory #1: Linux Kernel Parent Process Death Signal Vulnerability Aug 14 2007 08:18PM Wojciech Purczynski (cliph isec pl) |
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Privacy Statement |
Small correction - I forgot to add setuid(0) ;)
PARENT CHILD
----------------------------------------------------------------
fork()
prctl(PR_SET_PDEATHSIG)
execve("/bin/setuid-binary")
setuid(0)
exit()'ed or killed
child receives NO signal this time
PARENT CHILD
----------------------------------------------------------------
fork()
prctl(PR_SET_PDEATHSIG)
execve("/bin/setuid-binary")
setuid(0)
execve("/bin/setuid-binary")
exit()'ed or killed
privileged process receives the signal
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