CVE-2018-20487 describes a critical vulnerability in the firewall3 component of Inteno IOPSYS versions 1.0 through 3.16. An authenticated attacker can achieve root-level remote code execution by crafting a malicious JSON-RPC method call to add a firewall rule with an "include" path pointing to an arbitrary script or binary, which is then executed when firewall changes are committed. This vulnerability carries a CVSS v3.0 score of 8.8 (High), indicating a high impact on confidentiality, integrity, and availability with low attack complexity and no user interaction required. Despite its severity, there is no evidence of active exploitation, publicly available exploit code (e.g., Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.0, <= 3.16CPE matchmatch criteria | cpe:2.3:a:inteno:iopsys:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.