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+--- Thread: OSX 10.12.6 Sierra - Token length exception (/thread-8828.html)
OSX 10.12.6 Sierra - Token length exception - ratpoison987 - 12-16-2019
Gents.
Did my due diligence and scoured the interwebs for info in regard to OSX and the Token length exception that hashcat is throwing me - for the extracted hash's.
Running OSX v10.12.6 Sierra
1. I created a user - 'temp' with a password 'password'.
2. Created a short dictionary file with simply 'password' within it.
3. Extracted the hash using a variety of methods, all yield the same string, of the same length.
4. Compared it against the sample hash provided on the site, it's a clear 128 hex characters longer than the sample.
I've read to truncate the string - tried that - ran hashcat, no result, despite the known password matching the word in the dictionary.
Guess my question is - did something change in OSX 10.12 - making the string longer somehow. And if that's the case, is there a workaround, or will there be support for 10.12 in the future?
Thanks guys.
rp
had 3 hash's in the hash.txt file - two i extracted, and one from the sample page...
output:
rp-iMac:hashcat rp$ ./hashcat -a 0 -m 7100 hash.txt dict.simple
hashcat (v5.1.0-1511-g2a043544) starting...
OpenCL API (OpenCL 1.2 (Apr 18 2019 20:04:11)) - Platform #1 [Apple]
====================================================================
* Device #1: Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz, skipped
* Device #2: ATI Radeon HD 6970M, 960/1024 MB (256 MB allocatable), 12MCU
Minimum password length supported by kernel: 0
Maximum password length supported by kernel: 256
Hashfile 'hash.txt' on line 1 ($ml$46...xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx): Token length exception
Hashfile 'hash.txt' on line 2 ($ml$27...xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx): Token length exception
Hashes: 1 digests; 1 unique digests, 1 unique salts
Bitmaps: 16 bits, 65536 entries, 0x0000ffff mask, 262144 bytes, 5/13 rotates
Rules: 1
Applicable optimizers:
* Zero-Byte
* Single-Hash
* Single-Salt
* Slow-Hash-SIMD-LOOP
* Uses-64-Bit
Watchdog: Hardware monitoring interface not found on your system.
Watchdog: Temperature abort trigger disabled.
Host memory required for this attack: 204 MB
* Device #2: ATTENTION! OpenCL kernel self-test failed.
Your device driver installation is probably broken.
See also: https://hashcat.net/faq/wrongdriver
Aborting session due to kernel self-test failure.
You can use --self-test-disable to override this, but do not report related errors.
Started: Mon Dec 16 11:28:03 2019
Stopped: Mon Dec 16 11:28:04 2019
rp-iMac:hashcat rp$
RE: OSX 10.12.6 Sierra - Token length exception - philsmd - 12-16-2019
https://github.com/hashcat/hashcat/issues/1697#issuecomment-425702306
you can just truncate it (to the same length the example hash has https://hashcat.net/wiki/example_hashes)
The more serious problem is your driver issue "kernel self-test failed". this is a serious problem that most of the time only your driver manufacturer can fix with an update (i.e. with a working and therefore non-buggy OpenCL driver)
You can probably use -D 1 for testing with your CPU