Catalyst::Plugin::Authentication vulnerabilities

A vulnerability in the Catalyst::Plugin::Authentication library for Perl before version 0.10_027 allows session fixation attacks. The library does not automatically change the session ID after authentication, enabling an attacker to hijack the victim's session.

Catalyst::Plugin::Authentication versions before 0.10029 for Perl allow timing attacks on stored passwords via eq comparisons in the legacy password verifier. The legacy verifier, used by the deprecated login method, compares clear-text passwords, crypt hashes and base64 digests with eq, so the comparison time depends on how many leading bytes match.

Catalyst::Plugin::Authentication versions through 0.10024 for Perl is susceptible to timing attacks. These versions use Perl's built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash or password.