Security features bypass in Cassandra - CVE-2021-44521

 

Security features bypass in Cassandra - CVE-2021-44521

Published: February 11, 2022 / Updated: November 26, 2022


Vulnerability identifier: #VU60551
CSH Severity: Low
CVSS v4: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-44521
CWE-ID: CWE-254
Exploitation vector: Remote access
Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote user to execute arbitrary code on the system.

The vulnerability exists due to insecure configuration that allows arbitrary code execution if the following settings are applied:

enable_user_defined_functions: true
enable_scripted_user_defined_functions: true
enable_user_defined_functions_threads: false

Note, such configuration is considered insecure and as not default.


Affected software

Cassandra
Netcool Operations Insight
Datastax Enterprise with IBM
IBM Sterling Global Mailbox (GM)

How to mitigate CVE-2021-44521

Install updates from vendor's website.

Cassandra - addressed in versions 3.0.26, 3.11.12, 4.0.2
Netcool Operations Insight - update to 1.6.5
Datastax Enterprise with IBM - addressed in versions 5.1.29, 6.0.17, 6.7.16, 6.8.20
IBM Sterling Global Mailbox (GM) - update to 6.1.2.1

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins