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The traceroute file must not have an extended ACL.


Overview

Finding ID Version Rule ID IA Controls Severity
V-22437 GEN004010 SV-45824r1_rule Medium
Description
If an extended ACL exists on the traceroute executable file, it may provide unauthorized users with access to the file. Malicious code could be inserted by an attacker and triggered whenever the traceroute command is executed by authorized users. Additionally, if an unauthorized user is granted executable permissions to the traceroute command, it could be used to gain information about the network topology behind the firewall. This information may allow an attacker to determine trusted routers and other network information potentially leading to system and network compromise.
STIG Date
SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide 2018-09-19

Details

Check Text ( C-43142r1_chk )
Check the permissions of the /usr/sbin/traceroute file.
# ls -lL /usr/sbin/traceroute

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-39211r1_fix)
Remove the extended ACL from the file.
# setfacl --remove-all /usr/sbin/traceroute