This attack could pose a serious security threat. You should take immediate action to stop any damage or prevent further damage from happening.
This signature detects the attempt to execute arbitrary command in PostgrSQL.
The PostgreSQL "COPY TO/FROM PROGRAM" function allows superusers and users in the 'pg_read_server_files' group to execute arbitrary code in the context of the database's operating system user.
This functionality is enabled by default and can be abused to run arbitrary operating system commands on Windows, Linux, and macOS.
- PostgreSQL 9.3 through 11.2.