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Check: GEN005522

IRIX 6.5: GEN005522 (in versions v1 r1 through v1 r0.6)

Title

The SSH public host key files must have mode 0644 or less permissive. (Cat II impact)

Discussion

If a public host key file is modified by an unauthorized user, the SSH service may be compromised.

Check Content

Check the permissions for SSH public host key files. # ls -lL /etc/ssh/*key.pub # ls -lL /etc/openssh/*key.pub If any file has a mode more permissive than 0644, this is a finding.

Fix Text

Change the permissions for the SSH public host key files. # chmod 0644 /etc/ssh/*key.pub

Additional Identifiers

Rule ID:

Vulnerability ID: V-22471

Group Title:

Expert Comments

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CCIs

CCIs tied to check.

Number	Definition
CCI-000225	The organization employs the concept of least privilege, allowing only authorized accesses for users (and processes acting on behalf of users) which are necessary to accomplish assigned tasks in accordance with organizational missions and business functions.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
AC-6	Least Privilege