Vulnerability identifier: #VU31081
Vulnerability risk: Low
Exploitation vector: Network
Exploit availability: No
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
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.
Install update from vendor's website.
Vulnerable software versions
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.