Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Cassandra | >= 3.0.0, < 3.0.26 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2022/02/11/4Mailing ListThird Party Advisory
- https://jfrog.com/blog/cve-2021-44521-exploiting-apache-cassandra-user-defined-fExploitMitigationThird Party Advisory
- https://lists.apache.org/thread/y4nb9s4co34j8hdfmrshyl09lokm7356Issue TrackingMailing ListVendor Advisory
- https://security.netapp.com/advisory/ntap-20220225-0001/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/02/11/4Mailing ListThird Party Advisory
- https://jfrog.com/blog/cve-2021-44521-exploiting-apache-cassandra-user-defined-fExploitMitigationThird Party Advisory
- https://lists.apache.org/thread/y4nb9s4co34j8hdfmrshyl09lokm7356Issue TrackingMailing ListVendor Advisory
- https://security.netapp.com/advisory/ntap-20220225-0001/Third Party Advisory
FAQ
What is CVE-2021-44521?
CVE-2021-44521 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 poss...
How severe is CVE-2021-44521?
CVE-2021-44521 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-44521?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Cassandra.