Apache::Session::Generate::MD5 versions through 1.94 for Perl create insecure session id. Apache::Session::Generate::MD5 generates session ids insecurely. The default session id generator returns a MD5 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.
Attack Parameters
Attack Vector
Network
Атака возможна удалённо
Attack Complexity
Low
Легко эксплуатировать
Privileges Required
None
Права не нужны
User Interaction
None
Не нужно действие пользователя
Impact Assessment
Confidentiality
High
Полная утечка данных
Integrity
High
Полная модификация данных
Availability
None
Нет нарушения работы
CVSS Vector v3.1
References 5
https://github.com/chorny/Apache-Session/issues/4
9b29abf9-4ab0-4765-b253-1875cd9b441e
https://metacpan.org/dist/Apache-Session/source/lib/Apache/Session/Generate/MD5…
9b29abf9-4ab0-4765-b253-1875cd9b441e
https://rt.cpan.org/Ticket/Display.html?id=173631
9b29abf9-4ab0-4765-b253-1875cd9b441e
https://security.metacpan.org/docs/guides/random-data-for-security.html
9b29abf9-4ab0-4765-b253-1875cd9b441e
http://www.openwall.com/lists/oss-security/2026/03/05/3
af854a3a-2127-422b-91ae-364da2661108