Vulnerability Details CVE-2021-44521
When running Apache Cassandra with the following configuration: enable_user_defined_functions: true enable_scripted_user_defined_functions: true enable_user_defined_functions_threads: false it is possible for an attacker to execute arbitrary code on the host. The attacker would need to have enough permissions to create user defined functions in the cluster to be able to exploit this. Note that this configuration is documented as unsafe, and will continue to be considered unsafe after this CVE.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.919
EPSS Ranking 99.7%
CVSS Severity
CVSS v3 Score 9.1
CVSS v2 Score 8.5
References
- http://www.openwall.com/lists/oss-security/2022/02/11/4
- https://jfrog.com/blog/cve-2021-44521-exploiting-apache-cassandra-user-defined-functions-for-remote-code-execution/
- https://lists.apache.org/thread/y4nb9s4co34j8hdfmrshyl09lokm7356
- https://security.netapp.com/advisory/ntap-20220225-0001/
- http://www.openwall.com/lists/oss-security/2022/02/11/4
- https://jfrog.com/blog/cve-2021-44521-exploiting-apache-cassandra-user-defined-functions-for-remote-code-execution/
- https://lists.apache.org/thread/y4nb9s4co34j8hdfmrshyl09lokm7356
- https://security.netapp.com/advisory/ntap-20220225-0001/
Products affected by CVE-2021-44521
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cpe:2.3:a:apache:cassandra:3.0.0
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cpe:2.3:a:apache:cassandra:3.0.1
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cpe:2.3:a:apache:cassandra:3.0.10
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cpe:2.3:a:apache:cassandra:3.0.11
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cpe:2.3:a:apache:cassandra:3.0.12
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cpe:2.3:a:apache:cassandra:3.0.13
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cpe:2.3:a:apache:cassandra:3.0.14
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cpe:2.3:a:apache:cassandra:3.0.15
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cpe:2.3:a:apache:cassandra:3.0.16
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cpe:2.3:a:apache:cassandra:3.0.17
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cpe:2.3:a:apache:cassandra:3.0.18
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cpe:2.3:a:apache:cassandra:3.0.19
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cpe:2.3:a:apache:cassandra:3.0.2
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cpe:2.3:a:apache:cassandra:3.0.20
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cpe:2.3:a:apache:cassandra:3.0.21
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cpe:2.3:a:apache:cassandra:3.0.22
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cpe:2.3:a:apache:cassandra:3.0.23
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cpe:2.3:a:apache:cassandra:3.0.24
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cpe:2.3:a:apache:cassandra:3.0.25
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cpe:2.3:a:apache:cassandra:3.0.3
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cpe:2.3:a:apache:cassandra:3.0.4
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cpe:2.3:a:apache:cassandra:3.0.5
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cpe:2.3:a:apache:cassandra:3.0.6
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cpe:2.3:a:apache:cassandra:3.0.7
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cpe:2.3:a:apache:cassandra:3.0.8
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cpe:2.3:a:apache:cassandra:3.0.9
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cpe:2.3:a:apache:cassandra:3.11.0
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cpe:2.3:a:apache:cassandra:3.11.1
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cpe:2.3:a:apache:cassandra:3.11.10
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cpe:2.3:a:apache:cassandra:3.11.11
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cpe:2.3:a:apache:cassandra:3.11.2
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cpe:2.3:a:apache:cassandra:3.11.3
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cpe:2.3:a:apache:cassandra:3.11.4
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cpe:2.3:a:apache:cassandra:3.11.5
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cpe:2.3:a:apache:cassandra:3.11.6
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cpe:2.3:a:apache:cassandra:3.11.7
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cpe:2.3:a:apache:cassandra:3.11.8
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cpe:2.3:a:apache:cassandra:3.11.9
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cpe:2.3:a:apache:cassandra:4.0.0
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cpe:2.3:a:apache:cassandra:4.0.1