Unwritable JOHN_HOME causing permission problems in Docker/OCI container

[openwall]

Unwritable JOHN_HOME causing permission problems in Docker/OCI container

[claudioandre-br]

Thank you for reporting. We will fix it.

As a workaround, please add the --user=root as seen below.

$ docker run --rm --user=root --volume "${PWD}:/data" ghcr.io/openwall/john best --wordlist=/data/wordlist /data/alltests.in
best --wordlist=/data/wordlist /data/alltests.in
Sorry, AVX512BW is required for this build
Sorry, AVX512F is required for this build
Will use /john/run/john-avx2
Warning: only loading hashes of type "descrypt", but also saw type "bsdicrypt"
Use the "--format=bsdicrypt" option to force loading hashes of that type instead
[...]
Using default input encoding: UTF-8
Loaded 7 password hashes with 5 different salts (1.4x same-salt boost) (descrypt, traditional crypt(3) [DES 256/256 AVX2])
Will run 8 OpenMP threads
Press Ctrl-C to abort, or send SIGUSR1 to john process for status
U*U***U*         (?)     
U*U***U          (?)     
U*U*U*U*         (?)     
                 (?)     
*U*U*U*U         (?)     
5g 0:00:00:00 DONE (2023-04-04 13:50) 125.0g/s 121375p/s 606875c/s 849625C/s -list=fo
Warning: passwords printed above might not be all those cracked
Use the "--show" option to display all of the cracked passwords reliably
Session completed. 

[claudioandre-br]

Thinking out loud.

In this case, I would like to have a 'private home' in a non 'system wide build'.

But, a system-wide build allows me to add the --volume "${PWD}:/home/JtR/.john" option which allows me to use and save .pot and .log in the host system. And that would be interesting.