CVE-2020-27264 – This vulnerability allows physically proximate ... (How to Fix)

Q: What is the severity of CVE-2020-27264?

CVE-2020-27264 has a CVSS score of 8.8 (HIGH). This vulnerability allows physically proximate attackers to brute-force Bluetooth Low Energy communication keys between insulin pumps and mobile applications. Attackers can potentially gain unauthorized access to medical devices, affecting users of SOOIL Developments' Diabecare RS insulin pumps and AnyDana mobile applications.

📋 TL;DR

This vulnerability allows physically proximate attackers to brute-force Bluetooth Low Energy communication keys between insulin pumps and mobile applications. Attackers can potentially gain unauthorized access to medical devices, affecting users of SOOIL Developments' Diabecare RS insulin pumps and AnyDana mobile applications.

💻 Affected Systems

Products:

Diabecare RS insulin pump
AnyDana-i mobile application
AnyDana-A mobile application

Versions: All versions prior to patch

Operating Systems: Android, iOS

Default Config Vulnerable: ⚠️ Yes

Notes: Vulnerability exists in default Bluetooth communication protocol implementation

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Unauthorized control over insulin delivery leading to life-threatening overdose or underdose of insulin

🟠

Likely Case

Unauthorized access to device data and potential manipulation of insulin delivery settings

🟢

If Mitigated

Limited to data exposure without ability to modify critical settings

🌐 Internet-Facing: LOW (requires physical proximity via Bluetooth)

🏢 Internal Only: HIGH (affects medical devices in patient care environments)

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: LIKELY

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Attack requires physical proximity but uses standard Bluetooth brute-forcing techniques

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Updated firmware and mobile applications

Vendor Advisory: https://us-cert.cisa.gov/ics/advisories/icsma-21-012-01

Restart Required: Yes

Instructions:

1. Contact SOOIL Developments for updated firmware. 2. Update insulin pump firmware via authorized medical provider. 3. Update AnyDana mobile applications from official app stores. 4. Re-pair devices after updates.

🔧 Temporary Workarounds

Disable Bluetooth when not in use

all

Turn off Bluetooth on insulin pump and mobile devices when not actively syncing data

Physical security controls

all

Keep insulin pump physically secure and monitor for unauthorized Bluetooth connections

🧯 If You Can't Patch

Implement strict physical access controls around medical device usage
Monitor for unauthorized Bluetooth connections and unusual device behavior

🔍 How to Verify

Check if Vulnerable:

Check device firmware version and mobile app version against vendor advisory

Check Version:

Check device display for firmware version; check mobile app settings for version information

Verify Fix Applied:

Confirm updated firmware version and successful re-pairing with mobile applications

📡 Detection & Monitoring

Log Indicators:

Multiple failed Bluetooth pairing attempts
Unusual Bluetooth connection patterns

Network Indicators:

Unusual Bluetooth Low Energy traffic patterns
Unauthorized device pairing attempts

SIEM Query:

Bluetooth connection logs showing repeated pairing failures or unknown device connections

📊 Metadata

CVE ID: CVE-2020-27264

CVSS v3 Score: 8.8 (HIGH)

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE: CWE-330

Published: January 19, 2021

Last Updated: November 21, 2024

🔗 References

https://us-cert.cisa.gov/ics/advisories/icsma-21-012-01 Third Party Advisory,US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsma-21-012-01 Third Party Advisory,US Government Resource

📤 Share & Export

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🔗 Related Vulnerabilities

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