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Q1What is this vulnerability? (Essence + Consequences)
🚨 **Essence**: Gogs SSH Server allows **parameter injection** in `internal/ssh/ssh.go`. 💥 **Consequences**: This leads directly to **Remote Code Execution (RCE)**. Attackers can take full control of the server.
Q2Root Cause? (CWE/Flaw)
🛡️ **Root Cause**: **Argument Injection** flaw. The built-in SSH server fails to properly sanitize inputs, allowing malicious parameters to be injected into system commands.
Q3Who is affected? (Versions/Components)
📦 **Affected**: **Gogs** (Go Git Service). Specifically **Version 0.13.0**. It is a self-hosted Git service built with Go.
Q4What can hackers do? (Privileges/Data)
💀 **Attacker Power**: Full **RCE**. With CVSS High severity, attackers gain **High Confidentiality, Integrity, and Availability** impact. They can execute arbitrary code as the service user.
Q5Is exploitation threshold high? (Auth/Config)
🔐 **Threshold**: **Medium**. Requires **PR:L** (Low Privileges). An authenticated user with access to the SSH service can exploit this. Not fully anonymous, but easy for insiders or compromised accounts.
Q6Is there a public Exp? (PoC/Wild Exploitation)
🔓 **Exploitation**: **YES**. Public PoCs exist on GitHub (e.g., `theMcSam/CVE-2024-39930-PoC`). Wild exploitation is highly likely given the simplicity of SSH argument injection.
Q7How to self-check? (Features/Scanning)
🔍 **Self-Check**: Scan for **Gogs instances** running version **0.13.0**. Check if the SSH service is exposed. Look for the specific file path `internal/ssh/ssh.go` in source code if auditing.
Q8Is it fixed officially? (Patch/Mitigation)
🩹 **Fix**: **YES**. Official releases are available at `github.com/gogs/gogs/releases`. Users must **upgrade** to a patched version immediately to close the SSH injection hole.
Q9What if no patch? (Workaround)
🚧 **No Patch?**: **Mitigation**: Disable SSH access if not needed. Restrict SSH ports via firewall. Monitor logs for unusual command executions. Use the ptrace-detection mitigation scripts mentioned in community repos.
Q10Is it urgent? (Priority Suggestion)
🔥 **Urgency**: **CRITICAL**. CVSS vector indicates High impact. Public exploits are available. Patch **IMMEDIATELY** to prevent server compromise and data theft.