Description (CNA)
Plack-Middleware-Session before version 0.35 for Perl generates session ids insecurely. The default session id generator returns a SHA-1 hash seeded with the built-in rand function, the epoch time, and the PID. 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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| MIYAGAWA / Plack::Middleware::Session | affected 0.01 before 0.35 |
CWE
CWE-340, CWE-338
References
- https://metacpan.org/release/MIYAGAWA/Plack-Middleware-Session-0.34/source/lib/Plack/Session/State.pm#L22
- https://github.com/plack/Plack-Middleware-Session/pull/52
- https://github.com/plack/Plack-Middleware-Session/commit/1fbfbb355e34e7f4b3906f66cf958cedadd2b9be.patch
- https://security.metacpan.org/docs/guides/random-data-for-security.html
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.