CVE-2020-17516: High severity apache cassandra vulnerability
Apache Cassandra versions 2.1.0 to 2.1.22, 2.2.0 to 2.2.19, 3.0.0 to 3.0.23, and 3.11.0 to 3.11.9, when using 'dc' or 'rack' internodeencryption setting, allows both encrypted and unencrypted internode connections. A misconfigured node or a malicious user can use the unencrypted connection despite not being in the same rack or dc, and bypass mutual TLS requirement.
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID for this Apache Cassandra vulnerability?
The vulnerability ID is CVE-2020-17516.
What is the severity of CVE-2020-17516?
The severity of CVE-2020-17516 is high with a score of 7.5.
Which versions of Apache Cassandra are affected by CVE-2020-17516?
Apache Cassandra versions 2.1.0 to 2.1.22, 2.2.0 to 2.2.19, 3.0.0 to 3.0.23, and 3.11.0 to 3.11.9 are affected by CVE-2020-17516.
How can a misconfigured node or a malicious user exploit CVE-2020-17516?
A misconfigured node or a malicious user can use the unencrypted internode connections despite the 'dc' or 'rack' internode_encryption setting.
Where can I find more information about CVE-2020-17516?
You can find more information about CVE-2020-17516 at the following references: [http://mail-archives.apache.org/mod_mbox/cassandra-user/202102.mbox/%3c6E4340A5-D7BE-4D33-9EC5-3B505A626D8D@apache.org%3e](http://mail-archives.apache.org/mod_mbox/cassandra-user/202102.mbox/%3c6E4340A5-D7BE-4D33-9EC5-3B505A626D8D@apache.org%3e), [https://lists.apache.org/thread.html/r81243a412a37a22211754936a13856af07cc68a93d728c52807486e9@%3Ccommits.cassandra.apache.org%3E](https://lists.apache.org/thread.html/r81243a412a37a22211754936a13856af07cc68a93d728c52807486e9@%3Ccommits.cassandra.apache.org%3E), [https://lists.apache.org/thread.html/rcb16f36cafa184dd159e94033f87d0fc274c4752d467f3a09f2ceae4@%3Ccommits.cassandra.apache.org%3E](https://lists.apache.org/thread.html/rcb16f36cafa184dd159e94033f87d0fc274c4752d467f3a09f2ceae4@%3Ccommits.cassandra.apache.org%3E)