Displaying 1 result from an estimated 1 matches for "iexist".
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2003 Apr 07
0
timing related vunlerability that reveals whether files exist without regard to permissions
...e exploit to make it work.
[njyoder@topcat ~/temp]$ uname -a
FreeBSD topcat.mine.nu 4.7-RELEASE-p6 FreeBSD 4.7-RELEASE-p6 #21: Sat Mar 1 06:07:58 EST 2003 njyoder@topcat.mine.nu:/usr/obj/usr/src/sys/TOPCAT i386
[njyoder@topcat ~/temp]$ ./evil
[+] creating unreachable
[+] creating unreachable/iexist
[+] chmod 0'ing unreachable
[+] d--------- 2 njyoder users 512 Apr 5 17:29 unreachable/
[+] Timing open() on unreachable/iexist
[+] Successful: 83 usecs, got m
[+] Timing open() on unreachable/non-existant
[+] Failure: 22 usecs, got m
[+] Using 35 as our cutoff.
[+...