CVE-2019-11495
First published: Tue Sep 10 2019(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Couchbase Couchbase Server | =5.1.1 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2019-11495.
What is the severity of CVE-2019-11495?
The severity of CVE-2019-11495 is critical with a CVSS score of 9.8.
How does CVE-2019-11495 affect Couchbase Server?
CVE-2019-11495 affects Couchbase Server version 5.1.1.
How can an attacker exploit CVE-2019-11495?
An attacker can exploit CVE-2019-11495 by brute-forcing the insecure cookie used for intra-node communication in Couchbase Server 5.1.1, allowing them to execute code remotely.
Is there a fix for CVE-2019-11495?
Yes, the fix for CVE-2019-11495 is available in later versions of Couchbase Server. It is recommended to upgrade to a patched version.
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