Low severity · published May 7, 2019
CVE-2019-11808
Ratpack versions before 1.6.1 generate a session ID using a cryptographically weak PRNG in the JDK's ThreadLocalRandom
3.7
CVSS
1.3%
EPSS
No
On KEV
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
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RA
Ratpack · Ratpack Project
before 1.6.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-11808
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-11808
Patch
https://github.com/ratpack/ratpack/commit/f2b63eb82dd71194319fd3945f5edf29b8f3a42d
Patch
https://github.com/ratpack/ratpack/issues/1448
Release Notes
https://github.com/ratpack/ratpack/releases/tag/v1.6.1
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