CVE-2019-1003000 — AI Deep Analysis Summary

🚨 **Essence**: Jenkins Script Security Plugin < 2.49 has a sandbox bypass flaw. <br>💥 **Consequences**: Attackers can execute **arbitrary code** on the Jenkins master JVM.…

🛡️ **Root Cause**: Flaw in `GroovySandbox.java` (src/main/java/...). <br>🔍 **CWE**: Not explicitly listed in data, but technically a **Insecure Sandbox Bypass** allowing metaprogramming to escape restrictions.

👥 **Affected**: Jenkins users running **Script Security Plugin version 2.49 or earlier**. <br>📦 **Component**: Core security mechanism for Groovy scripts in Jenkins pipelines.

💰 **Attacker Capabilities**: <br>1. Execute **arbitrary code** on the master node. <br>2. Gain **Overall/Read** or **Job/Configure** permissions. <br>3.…

🔓 **Threshold**: <br>• **Standard**: Requires **Overall/Read** + **Job/Configure** permissions. <br>• **Advanced**: Can be chained with **CVE-2018-1000861** for **Pre-Auth RCE** (no login needed!).…

💣 **Public Exploits**: YES. <br>• Multiple PoCs available on GitHub (e.g., `adamyordan`, `slowmistio`). <br>• Nuclei templates exist for automated scanning. <br>• Orange Tsai documented the pre-auth chain.

🔍 **Self-Check**: <br>1. Check Jenkins Plugin Manager for **Script Security Plugin** version. <br>2. Use **Nuclei** templates (`CVE-2019-1003000.yaml`). <br>3.…

✅ **Official Fix**: YES. <br>• Vendor Advisory: **SECURITY-1266**. <br>• Update Script Security Plugin to **version 2.50+**. <br>• RedHat issued errata **RHBA-2019:0327**.

🚧 **No Patch Workaround**: <br>1. **Disable** the Script Security Plugin if not needed (risky). <br>2. Restrict **Overall/Read** permissions strictly. <br>3.…

🔥 **Urgency**: **CRITICAL**. <br>• High impact (RCE). <br>• Easy to exploit (especially with chaining). <br>• Public PoCs exist. <br>👉 **Action**: Patch immediately or isolate the Jenkins instance.