{"id":"CVE-2025-40924","state":"PUBLISHED","title":"Catalyst::Plugin::Session before version 0.44 for Perl generates session ids insecurely","description":"Catalyst::Plugin::Session before version 0.44 for Perl generates session ids insecurely.\n\nThe 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.\n\nPredicable session ids could allow an attacker to gain access to systems.","publishedAt":"2025-07-17T13:33:43.739Z","updatedAt":"2025-07-17T19:53:31.346Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","source":"CISA-ADP"},"assigner":"CPANSec","products":["HAARG Catalyst::Plugin::Session"],"affected":[{"vendor":"HAARG","product":"Catalyst::Plugin::Session","packageName":"Catalyst-Plugin-Session","defaultStatus":"unaffected","versions":[{"version":"0.01","status":"affected","lessThan":"0.44","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","repo":"https://github.com/perl-catalyst/Catalyst-Plugin-Session"}],"references":["https://metacpan.org/release/HAARG/Catalyst-Plugin-Session-0.43/source/lib/Catalyst/Plugin/Session.pm#L632","https://github.com/perl-catalyst/Catalyst-Plugin-Session/pull/5","https://github.com/perl-catalyst/Catalyst-Plugin-Session/commit/c0e2b4ab1e42ebce1008286db8c571b6ee98c22c.patch"],"weaknesses":["CWE-340","CWE-338"],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/40xxx/CVE-2025-40924.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-40924","state":"PUBLISHED","datePublished":"2025-07-17T13:33:43.739Z","dateUpdated":"2025-07-17T19:53:31.346Z","assignerShortName":"CPANSec","assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateReserved":"2025-04-16T09:05:34.362Z"},"containers":{"cna":{"title":"Catalyst::Plugin::Session before version 0.44 for Perl generates session ids insecurely","descriptions":[{"lang":"en","value":"Catalyst::Plugin::Session before version 0.44 for Perl generates session ids insecurely.\n\nThe 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.\n\nPredicable session ids could allow an attacker to gain access to systems."}],"affected":[{"vendor":"HAARG","product":"Catalyst::Plugin::Session","packageName":"Catalyst-Plugin-Session","defaultStatus":"unaffected","versions":[{"version":"0.01","status":"affected","lessThan":"0.44","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","repo":"https://github.com/perl-catalyst/Catalyst-Plugin-Session"}],"references":[{"url":"https://metacpan.org/release/HAARG/Catalyst-Plugin-Session-0.43/source/lib/Catalyst/Plugin/Session.pm#L632"},{"url":"https://github.com/perl-catalyst/Catalyst-Plugin-Session/pull/5","tags":["issue-tracking"]},{"url":"https://github.com/perl-catalyst/Catalyst-Plugin-Session/commit/c0e2b4ab1e42ebce1008286db8c571b6ee98c22c.patch","tags":["patch"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-340","description":"CWE-340 Generation of Predictable Numbers or Identifiers","lang":"en","type":"CWE"},{"cweId":"CWE-338","description":"CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"CPANSec","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateUpdated":"2025-07-17T13:33:43.739Z"},"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Users are advised to upgrade to Catalyst-Plugin-Session version 0.44 or later."}],"value":"Users are advised to upgrade to Catalyst-Plugin-Session version 0.44 or later."}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-07-17T19:51:00.779304Z","id":"CVE-2025-40924","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-07-17T19:53:31.346Z"}}]}}}