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1.128 AZLX-23-002290

Information

Amazon Linux 2023 library files must have mode "755" or less permissive.

GROUP ID: V-274121
RULE ID: SV-274121r1155161

If Amazon Linux 2023 were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process.

This requirement applies to operating systems with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs that execute with escalated privileges. Only qualified and authorized individuals will be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications.

Solution

Configure Amazon Linux 2023 systemwide shared library files contained in the directories "/lib", "/lib64", "/usr/lib", and "/usr/lib64" have mode 0755 or less permissive with the following command.

$ sudo find /lib /lib64 /usr/lib /usr/lib64 -type f -name '*.so*' -perm /022 -exec chmod go-w {} +

See Also

https://workbench.cisecurity.org/benchmarks/26107

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-5(6), CAT|II, CCI|CCI-001499, Rule-ID|SV-274121r1155161_rule, STIG-ID|AZLX-23-002290, Vuln-ID|V-274121

Plugin: Unix

Control ID: 367ba08a83fa7dde4016489bd2b4210c8b2a91ae604f03034d8b85e8074bd23f