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Windows Driver Sanity check: check that the password length passed from the bootloader is less than or equal to 64 before using it.

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This commit is contained in:
Mounir IDRASSI 2014-10-26 00:58:49 +02:00
parent 3f2e20e339
commit f7d8e565b4
1 changed files with 21 additions and 17 deletions
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4
src/Driver/DriveFilter.c
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@ -97,6 +97,9 @@ NTSTATUS LoadBootArguments ()
TC_BUG_CHECK (STATUS_CRC_ERROR); TC_BUG_CHECK (STATUS_CRC_ERROR);
} }
// Sanity check: for valid boot argument, the password is less than 64 bytes long
if (bootArguments->BootPassword.Length <= MAX_PASSWORD)
{
BootLoaderSegment = bootLoaderSegment; BootLoaderSegment = bootLoaderSegment;
BootArgs = *bootArguments; BootArgs = *bootArguments;
@ -120,6 +123,7 @@ NTSTATUS LoadBootArguments ()
status = STATUS_SUCCESS; status = STATUS_SUCCESS;
} }
}
MmUnmapIoSpace (mappedBootArgs, sizeof (BootArguments)); MmUnmapIoSpace (mappedBootArgs, sizeof (BootArguments));
} }