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Q1What is this vulnerability? (Essence + Consequences)
🚨 **Essence**: SSRF vulnerability in Apache HTTP Server. Attackers craft malicious `uri-path` requests. 📉 **Consequences**: Server acts as a proxy to attacker-chosen servers.…
🕵️ **Capabilities**: Hackers can bypass network boundaries. They can perform **port scanning** on the internal LAN. They can **attack applications** running inside the network.…
🔓 **Threshold**: Low. No authentication required. ⚙️ **Config**: Exploits the `mod_proxy` module. If the module is enabled, the attack vector is open via standard HTTP requests.…
🔍 **Check**: Scan for Apache versions <= 2.4.48. 📡 **Test**: Send crafted requests to the `uri-path` to see if `mod_proxy` redirects to an external/internal target.…
✅ **Official Fix**: YES. Patched in **Apache HTTP Server 2.4.49**. 📢 **Announcement**: Released as part of the September 2021 security update. 🔄 **Action**: Upgrade immediately to version 2.4.49 or later.…
🚧 **Workaround**: If upgrading is impossible, disable the `mod_proxy` module if not strictly needed. 🛑 **Restrict**: Implement strict firewall rules to block outbound proxy requests from the server.…