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  5. CVE-2020-17516

CVE-2020-17516: Authentication Bypass by Spoofing

February 3, 2021 (updated September 16, 2021)

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.

References

  • mail-archives.apache.org/mod_mbox/cassandra-user/202102.mbox/%3c6E4340A5-D7BE-4D33-9EC5-3B505A626D8D@apache.org%3e
  • lists.apache.org/thread.html/rd84bec24907617bdb72f7ec907cd7437a0fd5a8886eb55aa84dd1eb8@%3Ccommits.cassandra.apache.org%3E
  • nvd.nist.gov/vuln/detail/CVE-2020-17516

Code Behaviors & Features

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Affected versions

All versions starting from 2.1.0 up to 2.1.22, all versions starting from 2.2.0 up to 2.2.19, all versions starting from 3.0.0 up to 3.0.23, all versions starting from 3.11.0 up to 3.11.9

Fixed versions

  • 2.2.0-beta1
  • 3.0.0-alpha1
  • 3.0.24
  • 3.11.10

Solution

Upgrade to versions 2.2.0-beta1, 3.0.0-alpha1, 3.0.24, 3.11.10 or above. *Note*: 2.2.0-beta1 and 3.0.0-alpha1 may be unstable versions. Use caution.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-290: Authentication Bypass by Spoofing

Source file

maven/org.apache.cassandra/cassandra-all/CVE-2020-17516.yml

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