CVE-2018-20487 Information

Description

An issue was discovered in the firewall3 component in Inteno IOPSYS 1.0 through 3.16. The attacker must make a JSON-RPC method call to add a firewall rule as an \include\ and point the \path\ argument to a malicious script or binary. This gets executed as root when the firewall changes are committed.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://public.inteno.se/?p=feed-inteno-openwrt.git;a=commit;h=e6159ca928d7f0c143be213afc6bf810c0329fe2 https://neonsea.uk/blog/2018/12/26/firewall-includes.html

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8