CVE-2019-11495 Weak cryptography in n/a
Insecure PRNG seeding allows brute-forcing the intra-node communication cookie, enabling remote code execution on Couchbase Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-11495?
CVE-2019-11495 is a critical vulnerability in Couchbase Couchbase Server, published on 10 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Couchbase Server 5.1.1, the cookie used for intra-node communication was not generated securely. Couchbase Server uses erlang:now() to seed the PRNG which results in a small search space for potential random seeds that could then be used to brute force the cookie and execute code against a remote system. This has been fixed in version 6.0.0.
Weakness: CWE-335
Which versions are affected by CVE-2019-11495?
It affects 1 product.
Products include Couchbase Couchbase Server.
How do I fix CVE-2019-11495?
No fix has been published for CVE-2019-11495 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-11495 being exploited?
There is no known exploitation of CVE-2019-11495 in the wild and no public exploit code.
Other vulnerabilities in Couchbase Couchbase Server
Sources
Also known as GHSA-55q6-9vmq-6mv6.