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CVE-2019-11808: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

May 7, 2019 (updated May 8, 2019)

Ratpack generates a session ID using a cryptographically weak PRNG in the JDK’s ThreadLocalRandom. This means that if an attacker can determine a small window for the server start time and obtain a session ID value, they can theoretically determine the sequence of session IDs.

References

  • nvd.nist.gov/vuln/detail/CVE-2019-11808

Code Behaviors & Features

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Affected versions

All versions before 1.6.1

Fixed versions

  • 1.6.1

Solution

Upgrade to version 1.6.1 or above.

Impact 3.7 LOW

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

Source file

maven/io.ratpack/ratpack-core/CVE-2019-11808.yml

Spotted a mistake? Edit the file on GitLab.

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