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.
Metrics
Affected Vendors & Products
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-21775 | 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. |
Solution
Users are advised to upgrade to Catalyst-Plugin-Session version 0.44 or later.
Workaround
No workaround given by the vendor.
Thu, 17 Jul 2025 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
|
Thu, 17 Jul 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Catalyst::Plugin::Session before version 0.44 for Perl generates session ids insecurely | |
| Weaknesses | CWE-338 CWE-340 |
|
| References |
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Projects
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Status: PUBLISHED
Assigner: CPANSec
Published:
Updated: 2025-07-17T19:53:31.346Z
Reserved: 2025-04-16T09:05:34.362Z
Link: CVE-2025-40924
Updated: 2025-07-17T19:53:03.650Z
Status : Awaiting Analysis
Published: 2025-07-17T14:15:31.227
Modified: 2025-07-17T21:15:50.197
Link: CVE-2025-40924
No data.
OpenCVE Enrichment
No data.
EUVD