CVE-2019-11808

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.

Category

3.7
CVSS
Severity: Low
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.30%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/ratpack/ratpack/releases/tag/v1.6.1 third party advisory release notes
https://github.com/ratpack/ratpack/commit/f2b63eb82dd71194319fd3945f5edf29b8f3a42d third party advisory patch
https://github.com/ratpack/ratpack/issues/1448 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2019-11808?
CVE-2019-11808 has been scored as a low severity vulnerability.
How to fix CVE-2019-11808?
To fix CVE-2019-11808, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-11808 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-11808 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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