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2 same hashcat versions on 2 computers - only one of them can crack - KrzysztofW - 04-15-2021
Hi
I noticed a weird issue. I use hashcat v6.1.1 on two different PCs (I rsynced the hashcat dir) and only one of them can crack a krberos SPN ticket.
The command line:
./hashcat.bin -m 13100 --force /tmp/hash_hashcat.txt rockyou.txt
The hashed SPN ticket:
$krb5tgs$23$*sqlServer$xor.com$MSSQLSvc/xor-app23.xor.com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
The password is in the rockyou.txt file (it's shantewhite).
The configuration of the PC that cannot crack the hash is (debian 10):
Linux iwp-015 4.19.0-16-amd64 #1 SMP Debian 4.19.181-1 (2021-03-19) x86_64 GNU/Linux
Intel Corporation HD Graphics 530 (rev 06)
intel-opencl 21.12.19358
The configuration of the PC that can crack it is (ubuntu 20.04):
Linux chris-XPS13-9333 5.8.0-48-generic #54~20.04.1-Ubuntu SMP Sat Mar 20 13:40:25 UTC 2021 x86_64 GNU/Linux
ocl-icd-libopencl1:amd64 2.2.11-1ubuntu1
Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
Could anyone help me understand where this problem comes from?
Thank you
RE: 2 same hashcat versions on 2 computers - only one of them can crack - atom - 04-15-2021
Especially the Intel GPU drivers are known to be broken. That's why you should not use --force. Otherwise you get no warning about.
RE: 2 same hashcat versions on 2 computers - only one of them can crack - KrzysztofW - 04-16-2021
ok thanks, so there is no way I could possibly make hashcat work on my debian PC? Is it possible de disable the GPU and only use the CPU?
RE: 2 same hashcat versions on 2 computers - only one of them can crack - Snoopy - 04-16-2021
adding
-D 1
will tell hahscat to use CPU only, be aware you will need opencl runtime for cpu only, combinated intel CPU/GPU will likely to fail anyway, because there are(were?) no CPU only opencl runtime, so the CPU will still use the broken GPU driver part (i was giving up in this on a combinated intel CPU/GPU quite some time ago, maybe this changed)
RE: 2 same hashcat versions on 2 computers - only one of them can crack - Courage Daniel - 04-17-2021
How can use a hashcat to crack a password?