Finding ID | Version | Rule ID | IA Controls | Severity |
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V-22366 | GEN002230 | SV-45175r1_rule | Medium |
Description |
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Shells with world/group write permissions give the ability to maliciously modify the shell to obtain unauthorized access. |
STIG | Date |
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SUSE Linux Enterprise Server v11 for System z | 2016-12-20 |
Check Text ( C-42520r1_chk ) |
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If /etc/shells exists, check the permissions of each shell referenced. # cat /etc/shells | xargs -n1 ls -lL Otherwise, check any shells found on the system. # find / -name "*sh" | xargs -n1 ls -lL If the permissions include a '+', the file has an extended ACL. If the file has an extended ACL and it has not been documented with the IAO, this is a finding. |
Fix Text (F-38573r1_fix) |
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Remove the extended ACL from the file. # setfacl --remove-all [shell] |