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Check: GEN001580

IRIX 6.5: GEN001580 (in versions v1 r1 through v1 r0.6)

Title

All run control scripts must have mode 0755 or less permissive. (Cat II impact)

Discussion

If the startup files are writable by other users, they could modify the startup files to insert malicious commands into the startup files.

Check Content

Check run control script modes. # find /etc/rc* /etc/init.d /lib/svc/method -perm -754 ! -perm 755 -type f -exec ls -ld {} \; If any run control script has a mode more permissive than 0755, this is a finding.

Fix Text

Ensure all system startup files have mode 0755 or less permissive. Examine the rc files, and all files in the rc1.d (rc2.d, and so on) directories, and in the /etc/init.d and /lib/svc/method directories to ensure they are not world-writable. If they are world-writable, use the chmod command to correct the vulnerability and to research why. Procedure: # chmod go-w <startupfile>

Additional Identifiers

Rule ID:

Vulnerability ID: V-906

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