CPANSA-Catalyst-Plugin-Session-2025-40924: Catalyst-Plugin-Session vulnerability
| Publisher | giterlizzi | Document category | csaf_security_advisory |
|---|---|---|---|
| Initial release date | 2025-07-17T00:00:00 | Engine | CSAF Perl Toolkit 0.26 |
| Current release date | 2025-07-17T00:00:00 | Build Date | |
| Current version | 1 | Status | final |
| CVSS v3.1 Base Score | 6.5 | Severity | |
| Original language | Language | en | |
| Also referred to | |||
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.
Vulnerabilities
CVE-2025-40924
Vulnerability DescriptionCatalyst::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.
| Weakness | CWE-338 : Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) |
|---|
Product status
Known affected
| Product | Score | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Catalyst-Plugin-Session less than 0.44 |
|
Fixed
- Catalyst-Plugin-Session greater than or equal 0.44
giterlizzi
Namespace: https://github.com/giterlizzi/
gdt@cpan.org
References
- CPANSA-Catalyst-Plugin-Session-2025-40924 JSON self
https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2025/cpansa-catalyst-plugin-session-2025-40924.json - https://github.com/perl-catalyst/Catalyst-Plugin-Session/commit/c0e2b4ab1e42ebce1008286db8c571b6ee98c22c.patch external
https://github.com/perl-catalyst/Catalyst-Plugin-Session/commit/c0e2b4ab1e42ebce1008286db8c571b6ee98c22c.patch - https://github.com/perl-catalyst/Catalyst-Plugin-Session/pull/5 external
https://github.com/perl-catalyst/Catalyst-Plugin-Session/pull/5 - https://metacpan.org/release/HAARG/Catalyst-Plugin-Session-0.43/source/lib/Catalyst/Plugin/Session.pm#L632 external
https://metacpan.org/release/HAARG/Catalyst-Plugin-Session-0.43/source/lib/Catalyst/Plugin/Session.pm#L632 - CVE-2025-40924 (NVD) external
https://nvd.nist.gov/vuln/detail/CVE-2025-40924
Revision history
| Version | Date of the revision | Summary of the revision |
|---|---|---|
| 1 | Thu Jul 17 00:00:00 2025 | First release |
Sharing rules
TLP:WHITE
For the TLP version see: https://www.first.org/tlp/