CVE-2025-40932

Summary

Apache::SessionX versions through 2.01 for Perl create insecure session id.

Apache::SessionX generates session ids insecurely. The default session id generator in Apache::SessionX::Generate::MD5 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.

Affected Software

Weaknesses

• CWE-340: CWE-340 Generation of Predictable Numbers or Identifiers
• CWE-338: CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://metacpan.org/release/GRICHTER/Apache-SessionX-2.01/source/SessionX/Generate/MD5.pm#L29

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