CVE-2026-58479: Sustainable Irrigation Platform RCE Flaw

CVE-2026-58479 Overview

CVE-2026-58479 is a command injection vulnerability [CWE-78] in the Sustainable Irrigation Platform (SIP) through version 5.2.16. The flaw resides in the optional cli_control plugin, which exposes an HTTP endpoint that stores attacker-supplied payloads without validation. Unauthenticated attackers, or those leveraging cross-site request forgery (CSRF), can inject arbitrary operating-system commands. Execution occurs when the associated irrigation station is activated. The attack succeeds when passphrase protection is disabled or the default passphrase opendoor remains in place.

Critical Impact
Attackers can achieve unauthenticated arbitrary command execution on the host running SIP, resulting in full compromise of the irrigation controller and any connected infrastructure.

Affected Products

Dan-in-ca Sustainable Irrigation Platform (SIP) through version 5.2.16
SIP deployments with the optional cli_control plugin enabled
SIP installations using the default passphrase opendoor or no passphrase

Discovery Timeline

2026-07-14 - CVE-2026-58479 published to NVD
2026-07-14 - Last updated in NVD database

Technical Details for CVE-2026-58479

Vulnerability Analysis

The Sustainable Irrigation Platform is a Python-based irrigation controller commonly deployed on Raspberry Pi and similar single-board computers. The cli_control plugin extends the base platform by allowing operators to bind shell commands to irrigation stations. Commands execute on the host when a bound station activates during a watering schedule.

The plugin exposes an HTTP endpoint that accepts user-supplied command strings and persists them to the plugin configuration. The endpoint performs no authentication check and no input sanitization on the stored command payload. Any network-reachable attacker can write an arbitrary command into the plugin state. The attacker then triggers execution by activating the target station or waiting for a scheduled run.

Access to the endpoint is gated by an optional passphrase, but the platform ships with either no passphrase or the well-known default value opendoor. Where the default remains in place, the plugin offers no meaningful access control.

Root Cause

The root cause is improper neutralization of special elements used in an OS command [CWE-78], combined with missing authentication on a state-changing HTTP endpoint. Stored payloads are passed to a shell interpreter without escaping or allow-listing.

Attack Vector

Exploitation requires network reachability to the SIP web interface. An attacker sends a crafted HTTP request to the cli_control plugin endpoint to store a malicious shell payload. Because no authentication is enforced by default, the request succeeds without credentials. The attacker then activates the mapped irrigation station over the same interface, causing the stored command to execute under the SIP process account. The same flaw is reachable through CSRF against an authenticated operator's browser session.

Detection Methods for CVE-2026-58479

Indicators of Compromise

Unexpected POST requests to the cli_control plugin endpoint from external or untrusted network sources
Modifications to the cli_control plugin configuration file containing shell metacharacters such as ;, |, &&, or backticks
Child processes spawned by the SIP Python process that are not standard GPIO or scheduler utilities
Outbound network connections initiated by the SIP host to unfamiliar destinations following station activation events

Detection Strategies

Review SIP HTTP access logs for requests targeting the cli_control plugin path and correlate with station activation events
Monitor the SIP host for anomalous process lineage where the Python interpreter forks shell commands unrelated to irrigation control
Alert on the presence of the default passphrase opendoor in configuration exports across managed SIP deployments

Monitoring Recommendations

Enable verbose logging on the SIP web server and forward logs to a central SIEM for retention and correlation
Baseline normal command-execution behavior of the cli_control plugin and alert on deviations
Track configuration file changes on the SIP host using file integrity monitoring

How to Mitigate CVE-2026-58479

Immediate Actions Required

Disable the cli_control plugin on any SIP instance where its functionality is not required
Change the default opendoor passphrase to a strong, unique value on every SIP deployment
Restrict network access to the SIP web interface using firewall rules or a reverse proxy with authentication
Audit stored cli_control commands and remove any entries that were not created by authorized operators

Patch Information

No vendor patch is referenced in the available advisories. Refer to the VulnCheck Advisory on RCE and the Zero Science Advisory ZSL-2026-5999 for the latest remediation guidance and any updated versions beyond 5.2.16.

Workarounds

Remove the cli_control plugin directory from the SIP installation if the feature is not in use
Place the SIP web interface behind a VPN or IP allow-list so it is not reachable from untrusted networks
Deploy anti-CSRF protections at a reverse proxy where the SIP interface must remain accessible to browsers
Run the SIP process under a least-privilege service account to limit the impact of successful command injection

bash

# Configuration example: restrict SIP interface to local network and disable cli_control
sudo iptables -A INPUT -p tcp --dport 8080 -s 192.168.1.0/24 -j ACCEPT
sudo iptables -A INPUT -p tcp --dport 8080 -j DROP

# Disable the vulnerable plugin
cd /home/pi/SIP/plugins
mv cli_control.py cli_control.py.disabled
sudo systemctl restart sip