CVE-2024-45989

4.0 MEDIUM

📋 TL;DR

Monica AI Assistant desktop application v2.3.0 contains a prompt injection vulnerability that allows attackers to manipulate chatbot responses to exfiltrate sensitive chat session data to external servers. This affects users of the vulnerable desktop application version who interact with the chatbot feature. The vulnerability enables unauthorized access to potentially sensitive conversation data.

💻 Affected Systems

Products:
  • Monica AI Assistant Desktop
Versions: v2.3.0
Operating Systems: Windows, macOS, Linux
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects the desktop application version 2.3.0; web or mobile versions may not be affected. Requires user to interact with manipulated chatbot prompts.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete exfiltration of all chat session data including personal information, confidential discussions, and potentially credentials or other sensitive data to attacker-controlled infrastructure.

🟠

Likely Case

Targeted exfiltration of specific chat conversations containing personal or sensitive information that could be used for social engineering, identity theft, or privacy violations.

🟢

If Mitigated

Limited data exposure with proper network controls preventing external communication, though local data manipulation remains possible.

🌐 Internet-Facing: MEDIUM - Requires user interaction with malicious content but can exfiltrate data externally if network egress is allowed.
🏢 Internal Only: LOW - Primarily affects individual desktop applications rather than network services, though data could still be exfiltrated if network access exists.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires the user to interact with a maliciously crafted prompt, making it a client-side attack. The technique is documented in public repositories.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: v2.3.1 or later

Vendor Advisory: https://monica.im/desktop

Restart Required: Yes

Instructions:

1. Open Monica AI Assistant desktop application
2. Check for updates via application menu
3. Download and install v2.3.1 or newer
4. Restart the application

🔧 Temporary Workarounds

Disable network access

all

Block the application from making external network connections to prevent data exfiltration

# Use firewall to block Monica AI Assistant executable
# Example for Windows: New-NetFirewallRule -DisplayName "Block Monica AI" -Direction Outbound -Program "C:\Path\To\Monica.exe" -Action Block

Temporary usage restriction

all

Avoid using the chatbot feature until patched

🧯 If You Can't Patch

  • Uninstall the vulnerable version and use web or mobile alternatives
  • Implement strict outbound firewall rules to block all external connections from the application

🔍 How to Verify

Check if Vulnerable:

Check application version in About section or settings. If version is exactly 2.3.0, the system is vulnerable.

Check Version:

# On Windows: Check application properties or About dialog
# On macOS: Click Monica AI Assistant > About Monica
# On Linux: Check via application menu or package manager

Verify Fix Applied:

Confirm application version is 2.3.1 or higher after update.

📡 Detection & Monitoring

Log Indicators:

  • Unusual external network connections from Monica AI process
  • Large outbound data transfers from the application
  • Chatbot responses containing unexpected image references or URLs

Network Indicators:

  • HTTP/HTTPS requests to unfamiliar domains from Monica AI process
  • Base64 encoded data in outbound requests
  • Requests to image hosting or file sharing services

SIEM Query:

process_name:"monica" OR process_name:"Monica AI" AND (destination_ip != known_good_ips OR url_contains:"base64" OR url_matches:"image.*upload")

🔗 References

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