Re: BUG #18817: Security Bug Report: Plaintext Password Exposure in Logs

On Wed, 2025-02-19 at 06:57 +0100, Matthias Apitz wrote:
> What do I have to configure in the PostgreSQL server to get this
> reproduced? I tried:
>
> $ psql -Usisis testdb
> psql (15.1, server 16.5)
> WARNING: psql major version 15, server major version 16.
>          Some psql features might not work.
> Type "help" for help.
>
> testdb=# CREATE USER bla WITH PASSWORD 'bla';
> CREATE ROLE
> testdb=#
>
> and have nothing in the log:
>
> $ tail /data/postgresql165/log/postgresql-2025-02-19_000000.log
> ...
>
> 2025-02-19 06:15:23.582 CET [1947] LOG:  checkpoint complete: wrote 1421 buffers (8.7%); 0 WAL file(s) added, 1 removed, 0 recycled; write=142.168 s, sync=0.003 s, total=142.186 s; sync files=57, longest=0.002 s, average=0.001 s; distance=18403 kB, estimate=18403 kB; lsn=5/72470898, redo lsn=5/7246F048
>
> I even set
>
> log_statement = 'all'
>
> and restarted the server - nothing.

Setting "log_statement" to "all", "mod" or "ddl" would do the trick.
You must have made some basic mistake.

Look at "pg_settings" what your current setting for "log_statement" is
and where it is coming from.

> The purpose of my question is to inform our 50++ PostgreSQL customers
> what they must avoid...

I'd call that an unfair bias against your younger customers.

Yours,
Laurenz Albe

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