CVE-2019-3401 — AI Deep Analysis Summary

🚨 **Essence**: A critical info leak in Atlassian Jira. 📉 **Consequences**: Remote attackers can **enumerate usernames**. This leads to potential data modification, unauthorized ops, and sensitive info exposure. 🛑

🔍 **CWE**: CWE-863 (Incorrect Authorization). 🐛 **Flaw**: The `ManageFilters.jspa` resource has a broken access control check. It fails to properly verify if the user is allowed to view the resource. 🚫

🏢 **Vendor**: Atlassian. 📦 **Product**: Jira. 📅 **Affected Versions**: < 7.13.3 AND 8.0.0 <= x < 8.1.1. ⚠️ If you are on these versions, you are vulnerable! 🎯

🕵️ **Action**: Enumerate valid usernames via the filter management page. 🔓 **Privileges**: No admin rights needed. 📊 **Impact**: Gathers intelligence for further attacks (brute force, phishing).…

📉 **Threshold**: LOW. 🌐 **Auth**: Remote & Unauthenticated. 🖱️ **Config**: Just need to send a request to the endpoint. No complex setup required. Easy to exploit! 🚀

📜 **Exp**: Yes. 📂 **PoC**: Available via Nuclei templates (ProjectDiscovery). 🔗 **Link**: GitHub repo provided in data. 🌍 **Wild Exp**: Likely automated scanning is already happening. 📢

🔎 **Check**: Scan for `ManageFilters.jspa` endpoint. 🛠️ **Tool**: Use Nuclei or similar scanners. 📋 **Feature**: Look for incorrect authorization responses on filter management pages. 🧪

✅ **Fixed**: Yes. 🔄 **Patch**: Upgrade to **7.13.3+** or **8.1.1+**. 📝 **Ref**: JIRA SERVER-69244. 🛡️ Official fix is the best defense. 🏥

🚧 **Workaround**: If you can't patch immediately... 🚫 **Block**: Restrict access to `ManageFilters.jspa` via WAF or firewall rules. 🔒 **Limit**: Disable public registration if possible. 🛑

🔥 **Priority**: HIGH. 🚨 **Urgency**: Critical info leak. 📢 **Advice**: Patch immediately! User enumeration is the first step to bigger breaches. Don't wait! ⏳