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CVE-2018-7490 β€” AI Deep Analysis Summary

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: A Path Traversal vulnerability in uWSGI. <br>πŸ’₯ **Consequences**: Attackers can read **arbitrary files** on the system by exploiting improper handling of `DOCUMENT_ROOT`.…

Q2Root Cause? (CWE/Flaw)

πŸ›‘οΈ **Root Cause**: The program fails to correctly validate the `DOCUMENT_ROOT` check.…

Q3Who is affected? (Versions/Components)

πŸ“¦ **Affected**: uWSGI versions **before 2.0.17**. <br>βš™οΈ **Component**: Specifically impacts the **PHP Plugin** when the `--php-docroot` configuration option is enabled.

Q4What can hackers do? (Privileges/Data)

πŸ•΅οΈ **Hackers' Power**: Can view **any file** on the server. <br>πŸ“‚ **Data Risk**: Sensitive configs, source code, or credentials exposed via crafted URLs containing `..` sequences.

Q5Is exploitation threshold high? (Auth/Config)

⚑ **Threshold**: **Low**. <br>πŸ”“ **Auth**: No authentication required. <br>βš™οΈ **Config**: Only requires the vulnerable `--php-docroot` setting. Simple URL manipulation is enough.

Q6Is there a public Exp? (PoC/Wild Exploitation)

πŸ’£ **Public Exp?**: **YES**. <br>πŸ”— **Proof**: Multiple PoCs available on GitHub (e.g., `vulhub`, `nuclei-templates`, `exploit-db #44223`). Wild exploitation is feasible.

Q7How to self-check? (Features/Scanning)

πŸ” **Self-Check**: Scan for uWSGI servers running PHP with `--php-docroot`. <br>πŸ§ͺ **Test**: Send requests with `../` in the URL path. If sensitive files are returned, you are vulnerable.

Q8Is it fixed officially? (Patch/Mitigation)

βœ… **Fixed?**: **YES**. <br>πŸ› οΈ **Patch**: Upgrade to **uWSGI 2.0.17** or later. The changelog confirms the fix for this specific DOCUMENT_ROOT handling issue.

Q9What if no patch? (Workaround)

🚧 **No Patch?**: Disable the `--php-docroot` option if possible. <br>🚫 **Mitigation**: Implement strict WAF rules to block `..` sequences in URLs targeting uWSGI endpoints.

Q10Is it urgent? (Priority Suggestion)

πŸ”₯ **Urgency**: **HIGH**. <br>⚠️ **Priority**: Critical for PHP/uWSGI setups. Immediate patching recommended due to easy exploitation and high impact (full file read).