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. Read the full analysis β
Q1What is this vulnerability? (Essence + Consequences)
π¨ **Essence**: File Browser < v2.61.1 has a critical flaw in the TUS protocol DELETE endpoint. π **Consequences**: Attackers can delete **any** file or directory, causing total data loss and service disruption. π₯
Q2Root Cause? (CWE/Flaw)
π‘οΈ **Root Cause**: CWE-732 (Incorrect Permission Assignment). π **Flaw**: The access control for the TUS DELETE endpoint is improperly configured, allowing unauthorized deletion actions. β
Q3Who is affected? (Versions/Components)
π₯ **Affected**: Users running **File Browser** versions **prior to 2.61.1**. π¦ **Component**: The core file management interface, specifically the TUS protocol handler. β οΈ
Q4What can hackers do? (Privileges/Data)
π **Attacker Action**: A user with **create permissions** can bypass restrictions to **delete arbitrary files/directories**. ποΈ **Impact**: High Integrity (I:H) and High Availability (A:H) impact. π
Q5Is exploitation threshold high? (Auth/Config)
π **Threshold**: **LOW**. π« **Auth**: No authentication required (PR:N). π±οΈ **UI**: No user interaction needed (UI:N). π **Network**: Remote exploitation possible (AV:N). π
Q6Is there a public Exp? (PoC/Wild Exploitation)
π« **Public Exp?**: No public PoC or wild exploitation detected yet. π΅οΈ **Status**: References point to GitHub commits and advisories, but no active exploit code is listed. π
Q7How to self-check? (Features/Scanning)
π **Self-Check**: Scan for File Browser instances. π **Verify**: Check if the version is **< 2.61.1**. π οΈ **Test**: Look for TUS DELETE endpoint exposure in the network traffic. π‘
Q8Is it fixed officially? (Patch/Mitigation)
β **Fixed**: Yes! Official patch released in **v2.61.1**. π₯ **Action**: Upgrade immediately to the latest version to close the TUS permission gap. π
Q9What if no patch? (Workaround)
π **No Patch?**: Restrict network access to the TUS endpoint. π **Mitigation**: Limit user permissions strictly; avoid giving 'create' rights if deletion risk is unacceptable. π§
Q10Is it urgent? (Priority Suggestion)
π₯ **Urgency**: **HIGH**. π¨ **Priority**: CVSS Score indicates High Impact. π **Timeline**: Patch immediately upon upgrade to v2.61.1 to prevent potential data destruction. β³