CVE-2019-11808 Information

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.

CVSS Vector

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

Reference

https://github.com/ratpack/ratpack/commit/f2b63eb82dd71194319fd3945f5edf29b8f3a42d https://github.com/ratpack/ratpack/issues/1448 https://github.com/ratpack/ratpack/releases/tag/v1.6.1

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

3.7