GNU Classpath 'gnu.java.security.util.PRNG' Class Entropy Weakness

BID:32909

Info

GNU Classpath 'gnu.java.security.util.PRNG' Class Entropy Weakness

Bugtraq ID: 32909
Class: Design Error
CVE: CVE-2008-5659
Remote: No
Local: Yes
Published: Dec 05 2008 12:00AM
Updated: Dec 29 2008 08:51PM
Credit: Jack Lloyd
Vulnerable: GNU Classpath 0.97.2
Not Vulnerable:

Discussion

GNU Classpath 'gnu.java.security.util.PRNG' Class Entropy Weakness

GNU Classpath is prone to a weakness that may result in weaker cryptographic security because its psuedo-random number generator (PRNG) lacks entropy.

Attackers may leverage this issue to obtain sensitive information that can lead to further attacks.

Classpath 0.97.2 is vulnerable; other versions may also be affected.

Exploit / POC

GNU Classpath 'gnu.java.security.util.PRNG' Class Entropy Weakness

The following proof-of-concept code is available:

Solution / Fix

GNU Classpath 'gnu.java.security.util.PRNG' Class Entropy Weakness

Solution:
Currently we are not aware of any vendor-supplied patches. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

References

GNU Classpath 'gnu.java.security.util.PRNG' Class Entropy Weakness

References:

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