This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login.
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Q1What is this vulnerability? (Essence + Consequences)
๐จ **Essence**: Unauthenticated Remote Code Execution (RCE) in Arelle. ๐ **Consequences**: Attackers can execute arbitrary Python code on the server, leading to full system compromise, data theft, and service disruption.
Q2Root Cause? (CWE/Flaw)
๐ก๏ธ **Root Cause**: CWE-306 (Missing Authentication for Critical Function). The `/rest/configure` endpoint blindly accepts a `plugins` parameter and forwards it to the plugin manager without any identity verification.โฆ
๐ฆ **Affected**: Arelle versions **< 2.39.10**. ๐ **Component**: The Web Server REST API, specifically the `/rest/configure` endpoint. If you are running an older version, you are vulnerable.
Q4What can hackers do? (Privileges/Data)
๐ป **Privileges**: The executed code runs with the **same permissions** as the Arelle process. ๐ **Data**: Full access to server files, network, and potentially sensitive financial data processed by Arelle.โฆ
๐ **Threshold**: **LOW**. โ ๏ธ **Auth**: No authentication or authorization is required. ๐ฏ **Config**: Attackers just need network access to the REST endpoint. It is trivial to exploit.
Q6Is there a public Exp? (PoC/Wild Exploitation)
๐ **Public Exp?**: No specific PoC code is listed in the data. ๐ **Wild Exp**: Likely easy to craft given the simple mechanism (URL injection). High risk of immediate exploitation in the wild.
Q7How to self-check? (Features/Scanning)
๐ **Self-Check**: Scan for Arelle instances exposing `/rest/configure`. ๐ ๏ธ **Tooling**: Use vulnerability scanners to detect unauthenticated endpoints accepting `plugins` parameters.โฆ
โ **Fixed?**: **YES**. ๐ฆ **Patch**: Upgrade to **Arelle 2.39.10** or later. ๐ **Reference**: See GitHub release notes and PR #2320 for the fix details.
Q9What if no patch? (Workaround)
๐ง **No Patch?**: Restrict network access to the `/rest/configure` endpoint. ๐ **Mitigation**: Implement WAF rules to block unauthenticated requests to this specific REST path. Do not expose it to the internet.
Q10Is it urgent? (Priority Suggestion)
๐ฅ **Urgency**: **CRITICAL**. ๐จ **Priority**: Patch immediately. CVSS Score is **9.8** (Critical). Unauthenticated RCE is a top-priority threat. Do not delay.