Check: GEN004010
SUSE Linux Enterprise Server v11 for System z STIG:
GEN004010
(in versions v1 r12 through v1 r9)
Title
The traceroute file must not have an extended ACL. (Cat II impact)
Discussion
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.
Check Content
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
Remove the extended ACL from the file. # setfacl --remove-all /usr/sbin/traceroute
Additional Identifiers
Rule ID: SV-45824r1_rule
Vulnerability ID: V-22437
Group Title: GEN004010
Expert Comments
CCIs
| 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
| Number | Title |
|---|---|
| AC-6 |
Least Privilege |