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’ internode_encryption 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.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17516
Reference (s):
- https://security.netapp.com/advisory/ntap-20210521-0002/
- http://mail-archives.apache.org/mod_mbox/cassandra-user/202102.mbox/%[email protected]%3e
- URL: http://mail-archives.apache.org/mod_mbox/cassandra-user/202102.mbox/%[email protected]%3e
- MLIST:[cassandra-commits] 20210217 [jira] [Created] (CASSANDRA-16455) CVE-2020-17516 mitigation in 2.2.x branch
- URL: https://lists.apache.org/thread.html/rd84bec24907617bdb72f7ec907cd7437a0fd5a8886eb55aa84dd1eb8@%3Ccommits.cassandra.apache.org%3E