Q: Is it fixed officially? (Patch/Mitigation)

✅ **Official Fix**: **YES**. <br>🛠️ **Patch**: Upgrade to **Lighthouse Studio version 9.16.14** or later. <br>📥 **Source**: Official Sawtooth Software download page.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. <br>⏳ **Priority**: Immediate action required. <br>📢 **Reason**: Pre-auth RCE with public PoCs means automated attacks are likely already occurring. Patch immediately or isolate the service.

Question 1

What is this vulnerability? (Essence + Consequences)

Accepted Answer

🚨 **Essence**: A critical Remote Code Execution (RCE) vulnerability in Sawtooth Lighthouse Studio.…

Question 2

Root Cause? (CWE/Flaw)

Accepted Answer

🛡️ **Root Cause**: CWE-20 (Improper Input Validation).
🔍 **Flaw**: Unsafe use of the `eval` function in the Perl CGI component `ciwweb.pl`.…

Question 3

Who is affected? (Versions/Components)

Accepted Answer

📦 **Affected Product**: Sawtooth Lighthouse Studio (Joint Analysis Platform).
📉 **Versions**: All versions **prior to 9.16.14**.
🏢 **Vendor**: Sawtooth Software (USA).

Question 4

What can hackers do? (Privileges/Data)

Accepted Answer

💀 **Attacker Actions**: Execute arbitrary Perl code remotely.
🔓 **Privileges**: Unauthenticated access required.…

Question 5

Is exploitation threshold high? (Auth/Config)

Accepted Answer

⚠️ **Threshold**: **LOW**.
🔑 **Auth**: Pre-authentication. No login credentials needed to exploit.
🌐 **Config**: Remote exploitation is possible via the web interface.

Question 6

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

Accepted Answer

🔓 **Public Exp**: **YES**.
📜 **PoCs Available**:
1. Nuclei template (ProjectDiscovery).
2. Python script (CVE-2025-34300POC).
🌍 **Status**: Active exploitation tools are publicly available on GitHub.

Question 7

How to self-check? (Features/Scanning)

Accepted Answer

🔍 **Self-Check**:
1. Use Nuclei with the CVE-2025-34300 template.
2. Run the Python POC script against target URLs.
3. Check if the server version is < 9.16.14.

Question 8

Is it fixed officially? (Patch/Mitigation)

Accepted Answer

✅ **Official Fix**: **YES**.
🛠️ **Patch**: Upgrade to **Lighthouse Studio version 9.16.14** or later.
📥 **Source**: Official Sawtooth Software download page.

Question 9

What if no patch? (Workaround)

Accepted Answer

🚧 **No Patch Workaround**:
1. **Block Access**: Restrict access to `ciwweb.pl` via WAF or firewall rules.
2.…

Question 10

Is it urgent? (Priority Suggestion)

Accepted Answer

🔥 **Urgency**: **CRITICAL**.
⏳ **Priority**: Immediate action required.
📢 **Reason**: Pre-auth RCE with public PoCs means automated attacks are likely already occurring. Patch immediately or isolate the service.

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CVE-2025-34300 — AI Deep Analysis Summary

Q1What is this vulnerability? (Essence + Consequences)

Q2Root Cause? (CWE/Flaw)

Q3Who is affected? (Versions/Components)

Q4What can hackers do? (Privileges/Data)

Q5Is exploitation threshold high? (Auth/Config)

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

Q7How to self-check? (Features/Scanning)

Q8Is it fixed officially? (Patch/Mitigation)

Q9What if no patch? (Workaround)

Q10Is it urgent? (Priority Suggestion)

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