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Old 10-25-2015, 03:08 AM   #1
huangjie
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Question on uselib() Local Privilege Escalation Exploit

Hi all, I'm recently doing research on https://www.exploit-db.com/exploits/895/. It's about using the race between msync and uselib to get root. But the code can be really confusing. Can anyone help explain it a little bit?
I have at least 2 question:
  • Why it needs to consume VMA?
  • How does msync_interval get the fake VMA?
 
Old 10-25-2015, 07:52 AM   #2
unSpawn
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dupe of https://www.linuxquestions.org/quest...it-4175557018/
do not do that again
 
  


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