Apache::Session::Generate::SHA256 versions before 1.3.19 for Perl create insecure session ids. Apache::Session::Generate::SHA256 generated session ids insecurely. The default session id generator returns a SHA-256 hash of the built-in rand() function, the epoch time, and the PID, that is hashed again. These are predictable, low-entropy sources. Predicable session ids could allow an attacker to gain access to systems. Note that version 1.3.19 has a fallback without warning to use insecure session generation method if the call to Crypt::URandom::urandom fails. However, this is unlikely as Crypt::URandom is a hardcoded requirement of the module. This issue is similar to CVE-2025-40931 for Apache::Session::Generate::MD5.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.3.19CPE matchmatch criteria | cpe:2.3:a:guimard:apache\:\:session\:\:generate\:\:sha256:*:*:*:*:*:perl:*:* | ||
>= 0, < 1.3.19CPE match | cpe:2.3:a:guimard:apache\:\:session\:\:generate\:\:sha256:*:*:*:*:*:perl:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
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