Nuclei having issues with multiple sessions

[inthenightsky]

Nuclei version:

2.5.8

Current Behavior:

When running Nuclei across multiple processes (i.e. via screen instances on Linux) and launching Nuclei with the -rdb , it will refuse to launch until the other session has ended, stating:

[FTL] Could not create runner: could not create issue reporting client: resource temporarily unavailable

Expected Behavior:

Nuclei should launch as normal, reporting into the report database.

Steps To Reproduce:

Open a new screen session on Linux, and kickoff a Nuclei scan using the -rdb flag.
Detach from that screen session (CTRL + A + D), the first scan will still be running.
Now attempt to run another Nuclei scan using the -rdb flag.
Observe the error occur.

Anything else:

This is likely because the process is locking the directory whilst the scan is in progress, so the other process running Nuclei is unable to access it. A solution might be to launch a separate process for interacting with the report database, have that process lock the directory, and have Nuclei route all requests to the report database through that process instead.

[ehsandeep]

@imnightmaree could you confirm if you able to reproduce this issuewith unique -rdb directory for each scan as expected?

[forgedhallpass]

@imnightmaree since we haven't heard back from you, I am marking the response above as the answer to this question.

[wifiuk]

i get this issue even using the -rdb flag when running as root, works fine when running as non root user in kali.