CVE-2019-11808
Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in Ratpack
3.7
LOW
CVSS 3.1
EPSS 0.28%
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.
How to fix CVE-2019-11808
To remediate CVE-2019-11808, upgrade the affected package to a fixed version below.
- —upgrade to 1.6.1 or later
- —upgrade to 1.6.1 or later
- —upgrade to 1.6.1 or later
Is CVE-2019-11808 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.6.1
- from 0, < 1.6.1
- from 0, < 1.6.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.7 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |