Vulnerability Description
Catalyst::Plugin::Session before version 0.44 for Perl generates session ids insecurely. The session id is generated from a (usually SHA-1) hash of a simple counter, the epoch time, the built-in rand function, the PID and the current Catalyst context. This information is of low entropy. 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. Predicable session ids could allow an attacker to gain access to systems.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/perl-catalyst/Catalyst-Plugin-Session/commit/c0e2b4ab1e42ebce
- https://github.com/perl-catalyst/Catalyst-Plugin-Session/pull/5
- https://metacpan.org/release/HAARG/Catalyst-Plugin-Session-0.43/source/lib/Catal
FAQ
What is CVE-2025-40924?
CVE-2025-40924 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Catalyst::Plugin::Session before version 0.44 for Perl generates session ids insecurely. The session id is generated from a (usually SHA-1) hash of a simple counter, the epoch time, the built-in rand...
How severe is CVE-2025-40924?
CVE-2025-40924 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-40924?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.