CVE-2017-1000353 — AI Deep Analysis Summary

🚨 **Essence**: Remote Code Execution (RCE) via insecure Java deserialization. 📉 **Consequences**: Attackers bypass security blacklists by sending a serialized `SignedObject` to the Jenkins CLI.…

🛡️ **Root Cause**: Flawed deserialization logic in the CLI protocol. 📝 **CWE**: Insecure Deserialization (implied by description).…

📦 **Affected Products**: CloudBees Jenkins CI. 📅 **Versions**: • Jenkins 2.56 and earlier • LTS 2.46.1 and earlier ⚠️ **Note**: Newer versions (2.46.2+) are safe.

👑 **Privileges**: System-level access (usually `jenkins` user). 📂 **Data**: Can read/write any file, install backdoors, or pivot to internal networks.…

🔓 **Auth**: Unauthenticated! 🚫 No login required. ⚙️ **Config**: Requires Jenkins CLI port (TCP 50000) to be accessible. 🌐 **Network**: If CLI is exposed to the internet, threshold is **LOW**.

🔥 **Public Exp**: YES. 📂 **PoC**: Available on GitHub (vulhub, r00t4dm). 🛠️ **Tools**: Python scripts and Java JARs (`CVE-2017-1000353-SNAPSHOT-all.jar`) allow easy reproduction.…

🔍 **Check**: Scan for Jenkins CLI port (50000). 🧪 **Test**: Send crafted `SignedObject` payload. 📡 **Scanner**: Use Nuclei templates (`CVE-2017-1000353.yaml`) or Exploit-DB (41965).…

✅ **Fixed**: YES. 📜 **Advisory**: Jenkins Security Advisory 2017-04-26. 🛠️ **Fix**: Added `SignedObject` to blacklist. 🔄 **Update**: Upgrade to Jenkins 2.57+ or LTS 2.46.2+.

🚧 **Workaround**: Disable the Java Remoting CLI protocol. ⚙️ **Config**: Set `jenkins.model.Jenkins.disableRemotingCLI=true` in `config.xml`. 🚫 **Block**: Firewall port 50000 if possible.…

🔴 **Priority**: CRITICAL. 🚀 **Urgency**: HIGH. 📢 **Reason**: Unauthenticated RCE with public PoCs. 🏃 **Action**: Patch immediately or disable CLI. ⏳ **Risk**: Active exploitation is likely.