CVE-2024-39327 — AI Deep Analysis Summary

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

🚨 **Essence**: Atos Eviden IDRA has a critical **Access Control Flaw**. 💥 **Consequences**: Attackers can illegally obtain **CA Signatures**, compromising digital identity integrity.

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **Incorrect Access Control** (Broken Access Control). 🔍 **CWE**: Not explicitly mapped in data, but fundamentally an **Authorization Bypass** allowing unauthorized actions.

Q: Who is affected? (Versions/Components)

📦 **Affected Product**: Atos Eviden IDRA. 📉 **Versions**: **Pre-2.6.1** (Versions before 2.6.1 are vulnerable).

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

💀 **Attacker Actions**: 1. **Illegal Access**: Bypass security controls. 2. **Data Theft**: Acquire **CA Signatures**. 3. **Impact**: High Confidentiality, Integrity, and Availability loss (CVSS H).

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

🔑 **Exploitation Threshold**: ✅ **Network**: Remote (AV:N). ✅ **Complexity**: Low (AC:L). ⚠️ **Auth**: Requires **Low Privileges** (PR:L). ❌ **UI**: No User Interaction (UI:N).

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

🧪 **Public Exploit**: **No**. 📝 **Status**: No PoCs or public exploits listed in the provided data.

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

🔍 **Self-Check**: 1. Verify IDRA version is **< 2.6.1**. 2. Check for unauthorized access to **CA Signature** modules. 3. Monitor logs for abnormal privilege escalation attempts.

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

🩹 **Official Fix**: **Yes**. 📌 **Action**: Upgrade to **Version 2.6.1** or later. 🔗 **Ref**: Bull/Atos Security Bulletin (PSIRT-1335).

Q: What if no patch? (Workaround)

🚧 **No Patch Workaround**: 1. **Restrict Access**: Limit network access to IDRA services. 2. **Monitor**: Implement strict logging for CA signature requests. 3. **Isolate**: Segment the network if possible.

Q: Is it urgent? (Priority Suggestion)

⚡ **Urgency**: **HIGH**. 📊 **CVSS**: High severity (H/H/H). 🚀 **Priority**: Patch immediately. CA signature compromise is critical for digital identity systems.

Updated May 06, 2026 CVSS 9.9 · Critical

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**: Atos Eviden IDRA has a critical **Access Control Flaw**. <br>💥 **Consequences**: Attackers can illegally obtain **CA Signatures**, compromising digital identity integrity.

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **Incorrect Access Control** (Broken Access Control). <br>🔍 **CWE**: Not explicitly mapped in data, but fundamentally an **Authorization Bypass** allowing unauthorized actions.

Q3Who is affected? (Versions/Components)

📦 **Affected Product**: Atos Eviden IDRA. <br>📉 **Versions**: **Pre-2.6.1** (Versions before 2.6.1 are vulnerable).

Q4What can hackers do? (Privileges/Data)

💀 **Attacker Actions**: <br>1. **Illegal Access**: Bypass security controls. <br>2. **Data Theft**: Acquire **CA Signatures**. <br>3. **Impact**: High Confidentiality, Integrity, and Availability loss (CVSS H).

Q5Is exploitation threshold high? (Auth/Config)

🔑 **Exploitation Threshold**: <br>✅ **Network**: Remote (AV:N). <br>✅ **Complexity**: Low (AC:L). <br>⚠️ **Auth**: Requires **Low Privileges** (PR:L). <br>❌ **UI**: No User Interaction (UI:N).

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

🧪 **Public Exploit**: **No**. <br>📝 **Status**: No PoCs or public exploits listed in the provided data.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: <br>1. Verify IDRA version is **< 2.6.1**. <br>2. Check for unauthorized access to **CA Signature** modules. <br>3. Monitor logs for abnormal privilege escalation attempts.

Q8Is it fixed officially? (Patch/Mitigation)

🩹 **Official Fix**: **Yes**. <br>📌 **Action**: Upgrade to **Version 2.6.1** or later. <br>🔗 **Ref**: Bull/Atos Security Bulletin (PSIRT-1335).

Q9What if no patch? (Workaround)

🚧 **No Patch Workaround**: <br>1. **Restrict Access**: Limit network access to IDRA services. <br>2. **Monitor**: Implement strict logging for CA signature requests. <br>3. **Isolate**: Segment the network if possible.

Q10Is it urgent? (Priority Suggestion)

⚡ **Urgency**: **HIGH**. <br>📊 **CVSS**: High severity (H/H/H). <br>🚀 **Priority**: Patch immediately. CA signature compromise is critical for digital identity systems.

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