CVE-2020-5412 — AI Deep Analysis Summary

🚨 **Essence**: SSRF in VMware Spring Cloud Netflix. 📉 **Consequences**: Attackers send requests to internal servers. Sensitive data leaks, unauthorized ops, or data modification possible.…

🔍 **CWE**: CWE-441 (Unintended Information Disclosure). 🛠️ **Flaw**: The `Hystrix Dashboard` proxy.stream endpoint lacks proper validation. It blindly proxies requests to any reachable server.…

📦 **Vendor**: Spring by VMware. 📂 **Product**: Spring Cloud Netflix. 📅 **Affected Versions**: 2.2.x < 2.2.4, 2.1.x < 2.1.6, and older unsupported versions. ✅ **Safe**: 2.2.4+ and 2.1.6+.

💻 **Actions**: Send HTTP requests to internal/hidden servers. 📂 **Data**: Access sensitive internal info. 🔧 **Ops**: Modify data or execute unauthorized commands. 🌐 **Scope**: Any server reachable by the host.…

⚠️ **Threshold**: Low to Medium. 🔑 **Auth**: Depends on dashboard access. ⚙️ **Config**: Requires Hystrix Dashboard enabled. 🚪 **Entry**: If dashboard is exposed, exploitation is trivial.…

🔓 **Exploit**: Yes. 📜 **PoC**: Available via Nuclei templates (projectdiscovery). 🌍 **Wild Exploitation**: High risk due to simple SSRF nature. 🧪 Automated scanning tools can detect this easily.…

🔎 **Check**: Look for `/hystrix` or `/hystrix-dashboard` endpoints. 📡 **Scan**: Use Nuclei template `CVE-2020-5412.yaml`. 🧪 **Test**: Send request to internal IP via proxy.stream.…

🛡️ **Fixed**: Yes. 📦 **Patch**: Upgrade to Spring Cloud Netflix 2.2.4 or 2.1.6. 🔄 **Action**: Update dependencies immediately. 📝 **Reference**: VMware Security Advisory. ✅ Official fix is the best defense.

🚧 **Workaround**: Disable Hystrix Dashboard if not needed. 🚫 **Block**: Restrict access to `/hystrix` endpoints via WAF/ACL. 🛑 **Filter**: Block outbound requests to internal IPs from app server.…

🔥 **Urgency**: HIGH. 🚨 **Priority**: P1/P2. ⏳ **Time**: Critical since PoC is public. 📉 **Impact**: Internal network compromise. 🏃 **Action**: Patch immediately or isolate dashboard. 🛑 Do not ignore this SSRF risk.