CVE-2019-11808

LOW

Ratpack < 1.6.1 - Weak Session ID Generation via ThreadLocalRandom

Title source: llm
STIX 2.1

Description

Ratpack versions before 1.6.1 generate 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 (3)

Core 3
Core References
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/ratpack/ratpack/releases/tag/v1.6.1
Patch, Third Party Advisory x_refsource_misc
https://github.com/ratpack/ratpack/issues/1448

Scores

CVSS v3 3.7
EPSS 0.0132
EPSS Percentile 66.9%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Details

CWE
CWE-338
Status published
Products (4)
io.ratpack/ratpack-groovy 0 - 1.6.1Maven
io.ratpack/ratpack-java 0 - 1.6.1Maven
io.ratpack/ratpack-session 0 - 1.6.1Maven
ratpack_project/ratpack < 1.6.1
Published May 07, 2019
Tracked Since Feb 18, 2026