CVE-2018-15727 — AI Deep Analysis Summary

Q: What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Grafana 'Remember Me' cookie forgery. 📉 **Consequences**: Complete **Authentication Bypass**. Attackers gain unauthorized access without valid credentials.

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: Improper seeding during user data requests from **LDAP** or **OAuth**. 🔍 **Flaw**: Predictable token generation allows cookie crafting.

Q: Who is affected? (Versions/Components)

📦 **Affected Versions**: Grafana **2.x**, **3.x**, **4.x** (<4.6.4), **5.x** (<5.2.3). ⚠️ **Component**: Core authentication module.

Q: What can hackers do? (Privileges/Data)

🔓 **Privileges**: Full access to Grafana interface. 📊 **Data**: View all dashboards, monitor Graphite/InfluxDB/Prometheus data. No password needed.

Q: Is exploitation threshold high? (Auth/Config)

⚙️ **Threshold**: **Low**. Requires only a **valid username** (LDAP/OAuth). No complex exploit chain needed. Just cookie injection.

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

💥 **Public Exp?**: **YES**. 🛠️ Tools: `grafana-CVE-2018-15727` (Go utility) & **Metasploit** module. 🌐 Wild exploitation is trivial.

Q: How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for Grafana versions <5.2.3. 🧪 Test: Try generating 'remember me' cookie with known LDAP/OAuth username. 🚩 Flag if accepted.

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

✅ **Fixed?**: **YES**. 📅 Patched in **Grafana 4.6.4** and **5.2.3**. 📢 Official advisory released Aug 29, 2018.

Q: What if no patch? (Workaround)

🚧 **No Patch?**: Disable 'Remember Me' feature. 🚫 Restrict LDAP/OAuth access. 🛑 Isolate Grafana instance from untrusted networks.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. 🚨 Auth bypass is high-risk. 🏃 **Action**: Patch immediately. ⏳ Old versions are actively targeted.

Updated May 08, 2026

This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis →

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Grafana 'Remember Me' cookie forgery. 📉 **Consequences**: Complete **Authentication Bypass**. Attackers gain unauthorized access without valid credentials.

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: Improper seeding during user data requests from **LDAP** or **OAuth**. 🔍 **Flaw**: Predictable token generation allows cookie crafting.

Q3Who is affected? (Versions/Components)

📦 **Affected Versions**: Grafana **2.x**, **3.x**, **4.x** (<4.6.4), **5.x** (<5.2.3). ⚠️ **Component**: Core authentication module.

Q4What can hackers do? (Privileges/Data)

🔓 **Privileges**: Full access to Grafana interface. 📊 **Data**: View all dashboards, monitor Graphite/InfluxDB/Prometheus data. No password needed.

Q5Is exploitation threshold high? (Auth/Config)

⚙️ **Threshold**: **Low**. Requires only a **valid username** (LDAP/OAuth). No complex exploit chain needed. Just cookie injection.

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

💥 **Public Exp?**: **YES**. 🛠️ Tools: `grafana-CVE-2018-15727` (Go utility) & **Metasploit** module. 🌐 Wild exploitation is trivial.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: Scan for Grafana versions <5.2.3. 🧪 Test: Try generating 'remember me' cookie with known LDAP/OAuth username. 🚩 Flag if accepted.

Q8Is it fixed officially? (Patch/Mitigation)

✅ **Fixed?**: **YES**. 📅 Patched in **Grafana 4.6.4** and **5.2.3**. 📢 Official advisory released Aug 29, 2018.

Q9What if no patch? (Workaround)

🚧 **No Patch?**: Disable 'Remember Me' feature. 🚫 Restrict LDAP/OAuth access. 🛑 Isolate Grafana instance from untrusted networks.

Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. 🚨 Auth bypass is high-risk. 🏃 **Action**: Patch immediately. ⏳ Old versions are actively targeted.

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