CVE-2021-33018

7.5 HIGH

📋 TL;DR

This vulnerability in Philips Vue PACS involves the use of broken cryptographic algorithms, which could allow attackers to decrypt sensitive medical information. It affects healthcare organizations using Philips Vue PACS versions 12.2.x.x and earlier. The exposure could include patient data, medical images, and other protected health information.

💻 Affected Systems

Products:
  • Philips Vue PACS
Versions: 12.2.x.x and prior
Operating Systems: Windows-based medical imaging systems
Default Config Vulnerable: ⚠️ Yes
Notes: Affects Picture Archiving and Communication Systems (PACS) used in healthcare environments for storing and transmitting medical images.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of all encrypted sensitive medical data, including patient records and medical images, potentially leading to privacy violations, regulatory fines, and reputational damage.

🟠

Likely Case

Targeted decryption of specific sensitive medical information by attackers with network access, leading to data breaches and HIPAA violations.

🟢

If Mitigated

Limited exposure of non-critical data with proper network segmentation and access controls in place.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires understanding of cryptographic weaknesses and network access to the PACS system.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Contact Philips for specific patching information

Vendor Advisory: http://www.philips.com/productsecurity

Restart Required: Yes

Instructions:

1. Contact Philips Healthcare support for vulnerability-specific patches
2. Apply patches according to Philips' deployment guidelines
3. Restart affected PACS systems
4. Verify cryptographic algorithms have been updated

🔧 Temporary Workarounds

Network Segmentation

all

Isolate PACS systems from untrusted networks and implement strict access controls

Encryption Monitoring

all

Monitor for unusual cryptographic activity or decryption attempts

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate PACS systems from all untrusted networks
  • Deploy additional encryption layers for sensitive data using modern cryptographic standards

🔍 How to Verify

Check if Vulnerable:

Check Philips Vue PACS version against affected versions (12.2.x.x and earlier)

Check Version:

Check through Philips Vue PACS administrative interface or contact Philips support

Verify Fix Applied:

Verify with Philips support that cryptographic algorithms have been updated to secure standards

📡 Detection & Monitoring

Log Indicators:

  • Unusual cryptographic operations
  • Multiple failed decryption attempts
  • Unauthorized access to encrypted data stores

Network Indicators:

  • Unusual traffic patterns to/from PACS systems
  • Attempts to intercept encrypted medical data

SIEM Query:

Search for events related to cryptographic failures, unauthorized PACS access, or medical data exfiltration

🔗 References

📤 Share & Export