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Vulnerability · Published Feb 3, 2021 · Assigned by apache

CVE-2020-17516

High 7.5

In plain English

A high-severity authentication bypass by spoofing in Apache Cassandra. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.0% (higher than 80% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.0%top 19.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavenorg.apache.cassandra:cassandra-all3.0.24GHSA-2vxm-vp4c-fjfw
Mavenorg.apache.cassandra:cassandra-all3.11.10GHSA-2vxm-vp4c-fjfw

Affected products (as reported)

VendorProductVersions
n/a Apache Cassandra 2.1.0 to 2.1.222.2.0 to 2.2.193.0.0 to 3.0.233.11.0 to 3.11.9

Weakness: CWE-290

References