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Read the full analysis โ
Q1What is this vulnerability? (Essence + Consequences)
๐จ **Essence**: `GitSearchRequest` in `mcp_server.py` does not filter the `repo_url`/`pattern` parameters.
๐ฅ **Consequence**: Can trigger **command injection** โ Remote Code Execution (RCE).
Q2Root Cause? (CWE/Flaw)
๐ **Root Cause**: Input is not securely processed.
๐ **Defect Point**: Suspected **CWE-77** (Command Injection).
โ๏ธ User input is directly concatenated when constructing system commands.
๐พ **What Hackers Can Do**:
- ๐ ๏ธ Remotely execute arbitrary system commands.
- ๐๏ธ Read/modify sensitive files.
- ๐ต๏ธ Probe or control the server.
- โ No local privileges required.
๐จ **Existing Exploit Available**:
- โ Exploit code is publicly available.
- ๐งช Although PoC is not listed in the data, it is marked as **exploitable**.
- โ ๏ธ Risk of **in-the-wild exploitation** exists.
Q7How to self-check? (Features/Scanning)
๐ **Self-Check Method**:
- ๐ Check if using **MCP โค 0.1.0**.
- ๐ Verify if `mcp_server.py` contains `GitSearchRequest`.
- ๐งช Search if `repo_url`/`pattern` are directly concatenated into commands.
- ๐ก Use network scanningโฆ
๐ **Official Fix Status**:
- โ **No patch available**.
- ๐ฌ The project team is aware (GitHub Issue #2), but has **not responded**.
- ๐ซ No mitigation measures have been released yet.
Q9What if no patch? (Workaround)
๐ก๏ธ **Temporary Mitigation Measures**:
- ๐ Restrict network access to the `GitSearchRequest` API (firewall/IP whitelist).
- ๐ซ Disable or remove the Git Search functionality.
- ๐งผ If you control the code, **filter/escape** โฆ