/ 
Amon2-6.16
⭐ Starred 163 / Amon2::Config::Simple
Security Advisories (1)
CVE-2025-15604 (2026-03-28)

Amon2 versions before 6.17 for Perl use an insecure random_string implementation for security functions. In versions 6.06 through 6.16, the random_string function will attempt to read bytes from the /dev/urandom device, but if that is unavailable then it generates bytes by concatenating a SHA-1 hash seeded with the built-in rand() function, the PID, and the high resolution epoch time. The PID will come from a small set of numbers, and the epoch time may be guessed, if it is not leaked from the HTTP Date header. The built-in rand function is unsuitable for cryptographic usage. Before version 6.06, there was no fallback when /dev/urandom was not available. Before version 6.04, the random_string function used the built-in rand() function to generate a mixed-case alphanumeric string. This function may be used for generating session ids, generating secrets for signing or encrypting cookie session data and generating tokens used for Cross Site Request Forgery (CSRF) protection.

NAME

Amon2::Config::Simple - Default configuration file loader

SYNOPSIS

package MyApp2;
# do "config/@{{ $c->mode_name ]}.pl"
use Amon2::Config::Simple;
sub load_config { Amon2::Config::Simple->load(shift) }

DESCRIPTION

This is a default configuration file loader for Amon2.

This module loads the configuration by do function. Yes, it's just plain perl code structure.

Amon2 using configuration file in "config/@{[ $c->mode_name ]}.pl".

HOW DO YOU USE YOUR OWN ENVIRONMENT VARIABLE FOR DETECTING CONFIGURATION FILE?

If you want to use config/$ENV{RUN_MODE}.pl for the configuration file, you can write code as following:

package MyApp;
use Amon2::Config::Simple;
sub load_config { Amon2::Config::Simple->load(shift, +{ environment => $ENV{RUN_MODE} } ) }