I installed a CH from debian repos (just copied from docs) and installation process asking me for a password, I typed my testing password ended by "();" witouth quotes.

After install I can access without any password.

users.xml show like "<password></password>" for default user.

¯\\\_(ツ)\_/¯

#endif
#if defined(OS_DARWIN)
    #include <mach-o/dyld.h>
#endif
#include <Common/Exception.h>
#include <Common/ShellCommand.h>
#include <Common/formatReadable.h>
#include <Common/Config/ConfigProcessor.h>
#include <Common/OpenSSLHelpers.h>
#include <Common/hex.h>
#include <common/getResource.h>
#include <common/sleep.h>
#include <IO/ReadBufferFromFileDescriptor.h>
#include <IO/WriteBufferFromFileDescriptor.h>
#include <IO/ReadBufferFromFile.h>
#include <IO/WriteBufferFromFile.h>
#include <IO/MMapReadBufferFromFile.h>
#include <IO/ReadBufferFromMemory.h>
#include <IO/copyData.h>
#include <IO/Operators.h>
#include <readpassphrase.h>
#include <Poco/Util/XMLConfiguration.h>
/** This tool can be used to install ClickHouse without a deb/rpm/tgz package, having only "clickhouse" binary.
  * It also allows to avoid dependency on systemd, upstart, SysV init.
  *
  * The following steps are performed:
  *
  * - copying the binary to binary directory (/usr/bin).
  * - creation of symlinks for tools.
  * - creation of clickhouse user and group.