Linksys RE7000 PingTest endpoint Command Injection (CVE-style) analysis

Vulnerability Intelligence Summary Vulnerability Overview Vulnerability ID: Submit #906547 Vulnerability Name: Linksys RE7000 v2.2.0.15 Command Injection Vulnerability Type: Command Injection Affected Component: endpoint (web management endpoint) Trigger Path: → → and Root Cause: Static analysis indicates that attacker-controlled PingTest parameters ( , , ) are used to construct ping commands. These are concatenated into a command buffer and passed directly to the system for execution without effective filtering of shell metacharacters or strict IP address validation, allowing the injection of shell metacharacters (e.g., , , , etc.). Scope of Impact Affected Product: Linksys RE7000, firmware version 2.2.0.15 Attack Surface: Web management endpoint Exploitation Prerequisites: The attacker must pass the authentication check of (or possess a valid session) Impact: Allows execution of arbitrary shell commands with the permissions of the web management endpoint on the embedded Linux system, potentially leading to complete device compromise. Remediation Measures Perform strict input validation on parameters such as (allowing only valid IP formats) Filter or escape shell metacharacters ( , , , , backticks, etc.) Avoid directly concatenating user input into shell commands; use parameterized calls or whitelist validation instead Upgrade firmware to the fixed version (once an official patch is released) POC / Exploitation Code The page does not include specific POC or exploitation code blocks; it only describes the exploitation principle (injecting shell metacharacters via parameters like ).

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Linksys RE7000 PingTest endpoint Command Injection (CVE-style) analysis