Detections
Analytics
ALMA-09-017510 - AlmaLinux OS 9 must set the umask value to 077 for all local interactive user accounts.
Information
Setting the most restrictive default permissions ensures that when new accounts are created they do not have unnecessary access.With a UMASK of 077, files will be created with 0600 permissions (owner read/write only) and directories will have 0700 permissions (owner read/write/execute only).
Solution
Remove the umask statement from all local interactive user's initialization files.If the account is for an application, the requirement for a umask less restrictive than "077" can be documented with the information system security officer (ISSO), but the user agreement for access to the account must specify that the local interactive user must first log on to their account and then switch the user to the application account with the correct option to gain the account's environment variables.
See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_CL_AlmaLinux_OS_9_V1R6_STIG.zip
Item Details
Audit Name: DISA Cloud Linux AlmaLinux OS 9 STIG v1r6
Category: CONFIGURATION MANAGEMENT
References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-269234r1050116_rule, STIG-ID|ALMA-09-017510, Vuln-ID|V-269234
Plugin: Unix
Control ID: 23215c13ad3515c0d5dac7f338805cbbd7b7dfa99e1c3a9a607a6d5eb8b62bf9